teh lee peng;rizafizah binti othaman;sharifah najiha binti timmiati.  (2023).  elucidating the role of core-shell structure on the synergistic interaction of mgo/dendritic fibrous nanosilica for enhanced co2 capture and co2 dry reforming to syngas.  - .  . 

nabilah suhaili, lee wah lim, lee peng teh, siti nurzubaida shahdan, zaitun ghazali, manabu miyamoto, shigeyuki uemiya, rizafizah othaman.  (2023).  effect of arginine-based deep eutectic solvents on supported porous sorbent for co2 capture analysis.  - sains malaysiana.  1419-1434. 

siva rubini devi raveendran, lee peng teh, rizafizah othaman, chin hua chia.  (2023).  modified uio-66-so3h metal organic framework for co2 adsorption.  - 10th conference on emerging energy and process technology 2023 (concept 10).  18. 

farah hannan binti anuar;rizafizah binti othaman.  (2023).  cellulose-poly(ethylene glycol-co-propylene glycol) polyurethane film with high water permeability.  - .  . 

nazwa, j, shi yi, n.rozida m.k, rizafizah, o..  (2022).  synthesis and characterization of ag/tio2 nanoparticles using oroxylum indicum extract.  - 2nd applied science research international conference 2022 (asric 2022).  97-99. 

noor afizah rosli, fauzul azim khairudin, hanieh kargarzadeh, rizafizah othaman, ishak ahmad.  (2022).  hydrophobic-oleophilic gamma-irradiated modified cellulose nanocrystal/ gelatin aerogel for oil absorption.  - international journal of biological macromolecules.  213-223. 

norilyani izzati hasanuddin, wan nur aini wan mokhtar, rizafizah othaman, farah hannan anuar.  (2022).  poly(lactic acid)-poly(ethylene glycol)/ magnesium silicate membrane for methylene blue removal: adsorption behavior, mechanism, ionic strength.  - membranes.  1-21. 

nazwa jon, mohamad azuwa mohamed, rizafizah othaman.  (2022).  biorenewable nanocomposite materials: vol 2: desalination and wastewater remediation.  - .  20. 

nur haninah harun, zurina zainal abidin, umar adam majid, mohamad rezi abdul hamid, abdul halim abdullah, rizafizah othaman, mohd yusof harun.  (2022).  adopting sustainable jatropha oil bio-based polymer membranes as alternatives for environmental remediation.  - polymers.  1-19. 

nadeem baig, abdel-nasser kawde, abdelaziz elgamouz, mohamed morsy, ahmed mohsen abdelfattah, rizafizah othaman.  (2022).  graphene nanosheet-sandwiched platinum nanoparticles deposited on a graphite pencil electrode as an ultrasensitive sensor for dopamine.  - rsc advances.  2057-2067. 

rizafizah othaman.  (2022).  mengukur pencemaran air melalui bod dan cod.  - majalah sains.  1-4. 

nurul amni abdullah, siti khairunnisa abdul halim, azizah baharum, rizafizah othaman.  (2022).  effect of hydrophobic modification on eggshell microparticles for thin film composite membrane.  - 2nd applied science research international conference 2022 (asric 2022).  112-114. 

sumathy raghavan, rozida mohd khalid, muntaz abu bakar, rizafizah othaman.  (2022).  effect of sample preparation and distillation time on the yield and chemical composition of essential oil of plectranthus amboinicus leaves.  - 2nd applied science research international conference 2022 (asric 2022).  115-117. 

ain nadiah sofiah ahmad khorairi, noor-soffalina sofian-seng, rizafizah othaman, noorul syuhada mohd razali, khairul farihan kasim.  (2022).  assessment of natural cellulosic powder from pepper pericarp waste (piper nigrum l.) after alkalization and bleaching treatment: effect of alkali concentration and treatment cycle.  - sains malaysiana.  1061-1074. 

norhana binti arsad;sahbudin bin shaari;noorfazila binti kamal;ahmad ashrif bin a bakar;mohd syuhaimi bin ab rahman;rizafizah binti othaman;zuraidah binti che` man;mohd saiful dzulkefly bin zan.  (2021).  investigation of highly sensitive chemical material for oscc biomaker application.  - .  . 

teh lee peng;rizafizah binti othaman.  (2021).  magnesium oxide-promoted dendritic fibrous nanosilica for superb co2 capture.  - .  . 

azizah binti baharum @ abdul aziz;rizafizah binti othaman;nurfaizah binti abu tahrim.  (2021).  pengoptimuman ubahsuaian imidazol ke atas kenaf teradiasi bagi penjerapan logam berat dalam air buangan industri.  - .  . 

siti nurzubaida shahdan, rizafizah othaman..  (2021).  development of superhydrophobic composite reinforced with modified eggshell powder for oil/water separation..  - malaysia polymer international conference (mpic 2021).  55. 

ishak bin ahmad;rizafizah binti othaman.  (2021).  hydrophobic gelatin-cellulose nanocrystals (cnc) composite aerogels for crude oil absorption.  - .  . 

rizafizah binti othaman;azizah binti baharum @ abdul aziz;muntaz binti abu bakar;farah hannan binti anuar.  (2021).  bahan pintar untuk rawatan air buangan industri.  - .  . 

nurul hanisah mohd, hanieh kargazadeh, manabu miyamoto, shigeyuki uemiya, nabhan sharer, azizah baharum, teh lee peng, ishak ahmad, mohd ambar yarmo, rizafizah othaman.  (2021).  aminosilanes grafted nanocrystalline cellulose from oil palm empty fruit bunch aerogel for carbon dioxide capture.  - journal of materials research and technology.  2287-2296. 

nabilah suhaili, lee peng teh, lee wah lim, rizafizah othaman.  (2021).  characterization of arginine deep eutectic solvent (ades) based silica gel for co2 capture..  - malaysia polymer international conference (mpic 2021).  45. 

rizafizah othaman (invited speaker), nazwa jon, nurul amni abdullah, nurul hanisah mohd, nabillah suhaili, sarah husnaini zainal, zaitun ghazali, siti nurzubaida shahdan, sivaperumal r. dhinashini, aina aqila arman alim, muhammad johan iskandar, wan farah.  (2021).  polymeric membranes and smart adsorbents in circular economy.  - malaysia polymer international conference (mpic 2021).  30. 

nurul hanisah mohd, rizafizah othaman, mukram mohamed mackeen, mohamad yusof maskat.  (2021).  kesan prarawatan dan masa hidrolisis enzim untuk penghasilan oligosakarida daripada serabut mesokarpa buah kelapa sawit.  - sains malaysiana.  1673-1683. 

sarah husnaini zainal, nurul hanisah mohd, nabilah suhaili, farah hannan anuar, azwan mat lazim, rizafizah othaman.  (2021).  preparation of cellulose-based hydrogel: a review.  - journal of materials research and technology.  935-952. 

s.m. yusof, r. othaman, h.d. setiabudi, l.p. teh.  (2021).  modified fibrous silica for enhanced carbon dioxide adsorption: role of metal oxides on physicochemical properties and adsorption performance.  - journal of solid state chemistry.  1-13. 

rizafizah othaman, nur hasyareeda hassan, wan farahhanim wan fathilah.  (2021).  penapis air buangan: teknologi penghasilan membran selulosa.  - .  150. 

norilyani izzati hasanuddin, wan nur aini wan mohd mokhtar, rizafizah othaman, farah hannan anuar.  (2021).  poly(lactic acid)-poly(ethylene glycol)/magnesium silicate membrane for methylene blue removal.  - malaysia polymer international conference 2021.  60. 

lee peng teh, syawal mohd yusof, rizafizah othaman, herma dina setiabudi.  (2021).  dendritic fibrous nanosilica for carbon dioxide capture.  - iupac ccce 2021 - 48th world chemistry congress & 104th canadian chemistry conference and exhibition.  1. 

nurul hanisah mohd, mukram mohamed mackeen, mohamad yusof maskat, rizafizah othaman..  (2021).  effect of saccharification and oligosacharides production from oil palm mesocarp fiber celulose using cellulase and ende-b-1,4-d-glucanase.  - malaysia polymer international conference (mpic 2021).  63. 

azwan mat lazim, farahain mokhtar, kalaivani sanger, a. azfaral ariff, izwan ishak, i. faiz mustafa, saiful irwan zubairi, shazrul fazry, rizafizah othaman, mazlan mohamed, norhakimin abdullah, h. hisham hamzah.  (2021).  hidrogel berasaskan pektin kulit buah naga (hylocereus polyrhizus) sebagai pembawa ubat melalui sistem penghantar oral.  - sains malaysiana.  3263-3273. 

nurul amni abdullah, siti nurzubaida shahdan, azizah baharum, rizafizah othaman.  (2021).  hydrophobicity modification of eggshell particles for polymeric membrane application..  - malaysia polymer international conference (mpic 2021).  66. 

nazwa jon, mohamad azuwa mohamed, rizafizah othaman..  (2021).  green synthesis of tio2 nanoparticles using plant extracts..  - malaysia polymer international conference (mpic 2021).  67. 

zaitun ghazali, mohd ambar yarmo, nur hasyareeda hassan, lee peng teh, rizafizah othaman.  (2020).  new green adsorbent for capturing carbon dioxide by choline chloride urea confined nanoporous silica.  - arabian journal for science and engineering.  4621-4634. 

rizafizah othaman, mohd ambar yarmo, nur hasyareeda hassan.  (2020).  kajian penggunaan mangkin logam terpilih untuk proses pembelahan molekul air bagi meningkatkan penghasilan gas hidrogen.  - .  1-7. 

rozida mohd khalid, abdul munir abd murad, farah diba abu bakar, rizafizah othaman, sahilah abd mutalib, shazilah kamaruddin, muhammad mukram mohamed mackeen.  (2020).  glaciozyma antarctica: unlocking the secrets of secondary metabolites involved in cold adaption.  - .  1-11. 

teh lee peng;mohd. ambar bin yarmo;ishak bin ahmad;rizafizah binti othaman.  (2020).  co2 adsorption-desorption studies on metal oxides-modified fibrous silica hzsm-5.  - .  . 

ain nadiah sofiah ahmad khorairi, noor soffalina sofian-seng, rizafizah othaman, khairul farihan kasim.  (2020).  cellulose powder from piper nigrum l. agro-industrial waste: effect of preparation condition on chemical structure and thermal degradation.  - sains malaysiana.  1951-1957. 

noraisah jahi, rizafizah othaman, azwan mat lazim, suria ramli.  (2020).  empty fruit bunch cellulose based sorbent for oil sorption in palm oil mill effluent.  - sains malaysiana.  2323-2333. 

zaitun ghazali, nabila suhaili, maratun najihah abu tahari, mohd ambar yarmo, nur hasyareeda hassan, rizafizah othaman.  (2020).  impregnating deep eutectic solvent choline chloride:urea:polyethyleneimine onto mesoporous silica gel for carbon dioxide capture.  - journal of materials research and technology.  3249-3260. 

fatimah zahrah mohd kamil, norilyani izzati hasanuddin, rizafizah othaman, farah hannan anuar.  (2020).  treatment of palm oil mill effluent by poly(l-lactic acid)-poly(ethylene glycol)/silica membrane.  - sains malaysiana.  2311-2322. 

nur farahein hadina ismail, tan meng chai, rusli daik, rizafizah othaman.  (2020).  epoxidised natural rubber (enr)/polyvinyl chloride (pvc)/silica (sio2) membrane for treating palm oil mill effluents (pome).  - plastics, rubber and composites.  134-140. 

nur haninah harun, zurina zainal abidin , abdul halim abdullah, rizafizah othaman.  (2020).  sustainable jatropha oil-based membrane with graphene oxide for potential application in cu(ii) ion removal from aqueous solution.  - processes.  1-22. 

nabilah suhaili, lee wah lim, takeuchi toyohide, rizafizah othaman.  (2019).  utilization of deep eutectic solvent (des) as porogen in the fabrication of polymeric monolithic capillary column.  - malaysian journal of analytical sciences.  667-676. 

nurfaizah abu tahrim, nurul izzaty hassan, nurul huda abd. karim, muntaz abu bakar, nur hasyareeda hassan nadhratun naiim mobarak, rizafizah othaman.  (2019).  kemsainsukm: mentor-mentee program - learning science is fun.  - k-novasi pengajaran & pembelajaran 2019.  1. 

afifah muhd sidik, farah hannan anuar, rizafizah othaman.  (2019).  polimer hijau sebagai membran rawatan air.  - .  121. 

noor azlina abdul ghani, rizafizah othaman, azizan ahmad, farah hannan anuar, nur hasyareeda hassan.  (2019).  impact of purification on iota carageenan as solid polymer electrolyte.  - arabian journal of chemistry.  370-376. 

rozida mohd khalid, rizafizah othaman, syazwani saidah che yussoff.  (2019).  memperkasa b40: isu dan strategi sains sosial.  - .  18. 

farah hannan binti anuar;rizafizah binti othaman;wan syaidatul aqma binti wan mohd noor.  (2019).  polyisoprene and poly (ethylene glycol) graft copolymers as novel antifouling coating.  - .  1-7. 

farah hannan binti anuar;rizafizah binti othaman;nurul huda binti abd karim.  (2019).  modification of renewable polymers as antifouling membrane for palm oil mill effluent (pome) treatment.  - .  1-8. 

rozida binti mohd. khalid;suria binti ramli;rizafizah binti othaman.  (2019).  development of microemulsion system using coconut oil for hair care product application.  - .  1-5. 

norliyana mod, farah hannan anuar, rizafizah othaman.  (2019).  solution casting epoxidized natural rubber/poly(vinylidine fluoride) membrane for palm oil effluent treatment.  - malaysian journal of analytical sciences.  725-735. 

zaitun ghazali, nur hasyareeda hassan, mohd ambar yarmo, teh lee peng, rizafizah othaman.  (2019).  immobilization of choline chloride: urea onto mesoporous silica for carbon dioxide capture.  - sains malaysiana.  1025-1033. 

wan farahhanim wan fathilah, rizafizah othamanwan farahhanim wan fathilah, rizafizah othaman.  (2019).  electrospun cellulose fibres and applications.  - sains malaysiana.  1459-1472. 

sarah husnaini zainal, rica nofrianti, azwan mat lazim, rizafizah othaman.  (2019).  cellulose-based hydrogel as halal agricultural medium.  - malaysian applied biology journal.  109-113. 

zaitun ghazali, mohd ambar yarmo, rizafizah othaman.  (2019).  confinement and characterization of deep eutectic solvent based on choline chloride: alcohol into nanoporous silica for co2 capture.  - proceedings of the universiti kebangsaan malaysia, faculty of science and technology; aip conference proceeding.  1-6. 

cheng wai chun, rizafizah othaman.  (2019).  membran alga hijau untuk jerapan asid salisilik.  - journal of polymer science and technology.  . 

safiah mohamad jaafar, rozida mohd. khalid, rizafizah othaman, wan nur aini wan mokhtar, suria ramli.  (2019).  coconut oil based microemulsion formulations for hair care product application.  - sains malaysiana.  599-605. 

liliahalim,kalaivanichellappan,ruhizanyasin,kamisahosman,zanatoniksan,azminshamrambely,wjulianawahmad,effandizakaria,hafizahhusain,mardinaabdullah,rizafizahothaman,mdizwanmahmud,roslindarosli,ayazidabakar,tmastura tsoh,m.sattar rasul,sabirinab&sitimistima.  (2018).  futuristic multidiscipline stem mentoring program.  - the 17th international expo on inventions and innovations.  . 

rizafizah binti othaman;yang farina abdul aziz;rusli bin daik;siti fadzilah binti mat noor;nor fauziana binti abdul aziz;nasharuddin bin zainal;azizah binti baharum @ abdul aziz;siti aishah binti hasbullah;arnida hani binti teh;faridah binti yunus;nur has.  (2018).  pembangunan dana wakaf kem sains ukm.  - .  . 

rizafizah binti othaman;mohd. ambar bin yarmo;nur hasyareeda binti hassan.  (2018).  penghasilan hidrogen daripada proses pembelahan molekul air menggunakan mangkin logam terpilih (hydrogen production from water splitting process by using selected metal catalysts).  - .  . 

siti fairus binti mohd yusoff;ishak bin ahmad;khairiah binti badri;mohamad azwani shah bin mat lazim;rizafizah binti othaman.  (2018).  fluorination of modified liquid natural rubber (lnr) for the application of hydrophobic surfaces.  - .  . 

mohamad sattar rasul.  (2018).  rampai penyelidik siri 6: stem untuk komuniti.  - rampai penyelidik siri 6: stem untuk komuniti.  . 

andi rifki rosandy, anis asmi azman, rozida mohd khalid, rizafizah othaman, azwan mat lazim,, iqbal m. choudary, yana maulana syah, jalifah latip, ikram md. said, muntaz abu bakar.  (2018).  new diterpenoids from the roots of croton hirtus (euphorbiaceae)..  - malaysian journal of analytical sciences.  64-71. 

safiah mohamad jaafar, rozida mohd. khalid, rizafizah othaman & suria ramli.  (2018).  phase behaviour of coconut oil based microemulsion formulations.  - 5th international conference on oils and fats 2018 (5th smile 2018).  . 

maziatul aqilah zahari, rizafizah othaman.  (2018).  siri penyelidikan sains kimia 2018.  - .  6. 

prof. madya dr. rizafizah othaman & dr. rozida mohd. khalid.  (2018).  scientastic!! seronoknya sains.  - impak sekolah @ ukm.  . 

nurfaizah abu tahrim, nurul izzaty hassan & rizafizah othaman.  (2018).  kemsainsukmmentor-mentee program: shape the future with science.  - rampai penyelidik siri 6 stem untuk komuniti.  . 

lilia h., kalaivani c., ruhizan m.yasin, kamisah o., zanaton h.iksan, azmin sham r., w.juliana w.ahmad, effandi z., hafizah h., mardina a, rizafizah o., m.izwan mahmud,roslinda r.,abu yazid a.bakar, t.mastura t.soh, m.sattar rasul,sabirin a, s.mistima.  (2018).  futuristic multidiscipline stem mentoring program.  - rampai penyelidik siri 6.  . 

muhammad johan iskandar, azizah baharum, farah hannan anuar, rizafizah othaman.  (2018).  palm oil industry in south east asia and the effluent treatment technology - a review.  - environmental technology & innovation.  169-185. 

abdullah a. ghawanmeh, kwok feng chong, shaheen sarkar, muntaz abu bakar, rizafizah othaman, rozida m. khalid.  (2018).  colchine prodrugs and codrugs: chemistry and bioactivities.  - european journal of medicinal chemistry.  229-242. 

teh lee peng, rizafizah othaman, rozida mohd khalid, nurul huda abd karim, nurfaizah abu tahrim, lim seng joe, noor soffalina sofian seng & arnida hani teh.  (2018).  kemsainsukm: zombie apocalypse.  - rampai penyelidik siri 6.  . 

mohd izhar ariff mohd kashim, nur asmadayana hasim, rizafizah othaman, rozida khalid, muhammad adib samsudin, mohammad zaini yahaya, zahara abdul manaf, latifah amin & diani mardiana mat zin.  (2018).  najis (tinja) manusia daripada perspektif sains dan islam serta amalan pemakanan sunnah.  - sains malaysiana.  . 

afifah muhamad sidik, rizafizah othaman, farah hannan anuar.  (2018).  the effect of molecular weight on the surface and permeation of poly(l-lactic acid)-poly(ethylene glycol) membrane with activated carbon filler.  - sains malaysiana.  . 

ain athirah zainuddin, rizafizah othaman, wan syaidatul aqma wan mohd noor, takeno akiyoshi, takahashi shinya, farah hannan anuar.  (2018).  synthesis and thermal properties of poly(ethylene glycol)-polydimetylsiloxane crosslinked copolymers.  - sains malaysiana.  . 

poh lee loh, noor azlina abdul ghani, nabilah suhaili, zetty shafiqa othman, muhammad rahimi yusop, rizafizah othaman, nur hasyareeda hassan.  (2018).  effects of soaking in glycerol and conventional solvents on the grinding of kempas wood (koompassia malaccensis).  - sains malaysiana.  . 

aina aqila arman alim & rizafizah othaman.  (2018).  epoxidized natural rubber/polyvinyl chloride/microcrystalline cellulose (enr/ pvc/mcc) composite membrane for palm oil mill effluent (pome) treatment.  - sains malaysiana.  . 

nurul huda abd karim, mohd farhan mohd nor, norhana arsad, nur hasyareeda hassan, azizah baharum, rozida khalid, farah hannan anuar, abu bakar, m and rizafizah othaman.  (2017).  the marketability of ukm chemistry students from industrial training perspective.  - pertanika journal of social sciences & humanities.  907-920. 

fairous salleh, tengku shafazila tengku saharuddin, alinda samsuri, rizafizah othaman, mohammad wahab mohammad hisham, mohd ambar yarmo.  (2017).  influence of cerium.  - materials science forum.  389-393. 

alinda samsuri, fairous salleh, tengku shafazila tengku saharuddin, rizafizah othaman, mohammad wahab mohammad hisham and mohd ambar yarmo.  (2017).  effect of noble metal silver on the reduction behaviour of molybdenum oxide using carbon monoxide.  - materials science forum.  377-381. 

hiroaki habaki, saori mitani, rizafizah othaman, ryuichi egashira.  (2017).  improvement of rubberwood manufacturing process by utilization of thermal treatment of wood residues.  - international journal of science and engineering investigations.  120-130. 

nurul fakhriah ismail, loo kooi keat & rizafizah othaman.  (2017).  membran tak simetri poliakrilonitril untuk penyingkiran malakit hijau daripada air sisa.  - journal of polymer science and technology.  78-84. 

nurul amni abdullah, nordiana suhada mohmad tahiruddin, rizafizah othaman.  (2017).  effect of silica content on the formation and morphology of enr/pvc/silica composites beads.  - aip proceedings.  0. 

jawatankuasa kem sains 2017.  (2017).  sains pacu pembangunan negara.  - utusan malaysia.  20. 

nazwa jon, nurul amni abdullah, rizafizah othaman.  (2017).  effects of silica composition on gas permeability of enr/pvc membrane.  - journal of fundamental and applied sciences.  632-641. 

rizafizah othaman, zaitun ghazali, nurul hanisah mohd.  (2017).  aplikasi kimia hijau dalam penangkapan gas karbon dioksida.  - majalah impak penyelidikan: penyelidikan translasi.  34. 

sharina abu hanifah, faszly rahim, zanaton h.iksan, wan nasyruddin wan abdullah, normazida rozi, mohammad faris mohammad esa, ishak ahmad, rizafizah othaman, nurul huda abd. karim, nurul izzaty hassan, rozida mohd. khalid, azizah baharom@adb. aziz.  (2017).  pengintegrasian sains tauhidik: persepsi peserta.  - ulum islamiyyah.  43-60. 

intan nurulaida rahman, rizafizah othaman.  (2017).  buku siri penyelidikan kimia 2017.  - .  4. 

nurul suraya rosli, shuhaida harun, jamaliah md jahim, rizafizah othaman.  (2017).  chemical and physical characterization of oil palm empty fruit bunch.  - malaysian journal of analytical sciences.  188-196. 

mohd izhar ariff mohd kashim, nur asmadayana hashim, rizafizah othman, muhammad zaini yahaya, rozida khalid, muhammad adib samsudin & diani mardiana mat zin.  (2017).  plasma darah dalam makanan daripada perspektif islam dan sains.  - sains malaysiana.  1779-1787. 

nurul izzaty hassan, nurul huda abd karim, nur hasyareeda hassan, siti fairus mohd yusoff, nurfaizah abu tahrim, rizafizah othaman, azizah baharom, suria ramli, teh lee peng & wan nur aini wan mokhtar.  (2017).  siri penyelidikan kimia 2017.  - .  328. 

rizafizah othaman, siti norfatihah fauzee, wan farahhanim wan fathilah.  (2017).  membran gentian hijau untuk aplikasi rawatan pome.  - majalah impak penyelidikan: penyelidikan translasi.  29. 

tengku shafazila tengku saharuddin, fairous salleh, alinda samsuri, norliza dzakaria, rizafizah othaman, mohammad wahab mohammad hisham, mohd. ambar yarmo.  (2016).  effect of rhodium additive on the reduction behaviour of iron oxide in carbon monoxide atmosphere.  - proceeding icxri2016.  121-122. 

nurul hanisah mohd., mohd. ambar yarmo, ishak ahmad, maratun najiha abu tahari, hanieh kargazadeh, rizafizah othaman.  (2016).  aminosilane modified nanocrystalline cellulose (ncc) from oil palm empty fruit bunch (opefb) fibers for carbon dioxide capture.  - international conference on x-rays and related techniques in research and industry (icxri2016).  123-124. 

salleh f., tengku saharuddin t.s., samsuri a., othaman r., mohamed hisham m.w., yarmo m.a..  (2016).  reduction behaviour of wo3 to w under carbon monoxide atmosphere.  - materials science forum.  305-308. 

nor f.m., karim n.h.a., abdullah i., othaman r..  (2016).  permeability of carbon dioxide and nitrogen gases through sio2 and mgo incorporated enr/pvc membranes.  - journal of elastomers and plastics.  483-498. 

safiah mohamad jaafar, rozida mohd khalid, rizafizah othaman & suria ramli.  (2016).  formulation and characterization of microemulsion system using coconut oil and nonionic surfactants.  - malaysia thailand japan international conference on science and technology.  . 

ain athirah zainuddin, rizafizah othaman, wan syaidatul aqma wan mohd noor, farah hannan anuar.  (2016).  1h-nmr characterization of poly(ethylene glycol) and polydimethylsiloxane copolymer.  - the 2016 ukm fst postgraduate colloquium, aip conference proceeding.  1-7. 

norliyana mod, farah hannan anuar, rizafizah othaman.  (2016).  preparation and characterization of epoxidised natural rubber (enr)/poly(vinylidene fluoride) (pvdf) (enr/pvdf) composite membrane.  - malaysian journal of analytical sciences.  . 

nurul hanisah mohd, nur farahein hadina ismail, johan iskandar zahari, wan farahhanim btwan fathilah, hanieh kargarzadeh, suria ramli, ishak ahmad, mohd ambar yarmo, rizafizah othaman.  (2016).  effect of aminosilane modification on nanocrystalline cellulose properties.  - journal of nanomaterials.  1-8. 

alinda samsuri, tengku shafazila tengku saharuddin, fairous salleh, rizafizah othaman, mohamed wahab mohamed hisham, mohd. ambar yarmo.  (2016).  temperature programmed reduction and x-ray diffractometry studies of moo3 reduction by different concentrations of carbon monoxide (kajian penurunan suhu berprogram dan pembelauan sinar-x terhadap.  - malaysian journal of analytical sciences.  382-387. 

tengku shafazila tengku saharuddin, alinda samsuri, fairous salleh, mohammad bin kassim, rizafizah othaman, mohamed wahab mohamed hisham, mohd ambar yarmo.  (2016).  influence of chromium on the reduction behavior of ferric oxide by using carbon monoxide: temperature programmed reduction and kinetic studies.  - malaysian journal of analytical sciences.  531-538. 

nur asmadayana hasim, mohd izhar ariff mohd kashim, rizafizah othaman, mohammad zaini yahaya,rozida khalid & muhammad adib samsudin.  (2016).  menses from the perspective of science and maqasid syariah (haid daripada perspektif sains dan maqasid syariah).  - sains malaysiana.  1879-1885. 

rizafizah othaman, kausar ahmad fuad, farhan mohd nor & rozida mohd khalid.  (2016).  physicochemical properties of edible films and polyetylene film on fried sweet potatoes(ipomoea batatas) (ciri fizikokimia filem boleh makan dan filem polietilena bagi ubi keledek (ipomoea batatas) g.  - sains malaysiana.  1939-1945. 

alinda samsuri, tengku shafazila tengku saharuddin,fairous salleh, rizafizah othaman,mohamed wahab mohamed hisham,mohd. ambar yarmo.  (2016).  study on the reduction behavior of molybdenum oxide ( moo3) in carbon monoxide (co) atmosphere.  - materials science forum.  299-304. 

rizafizah othaman, lim seng joe, nurul huda abd karim, farah hannan anuar, rozida mohd khalid, teh lee peng.  (2016).  bakat malaysia: kem sains.  - nasi lemak kopi o.  . 

alinda samsuri, fairous salleh, tengku shafazila tengku saharuddin, rizafizah othaman, and mohd. ambar yarmo.  (2016).  study on the reduction behaviour of nickel doped molybdenum trioxide by using carbon monoxide as reductant.  - international journal of chemical engineering and applications.  16-21. 

tengku shafazila tengku saharuddin1,a*, alinda samsuri1,2 , fairous salleh1 , rizafizah othaman1 , mohammad kassim1 , mohamed wahab mohamed hisham1 , mohd ambar yarmo1,.  (2016).  the reduction behaviour of cerium doped iron oxide in hydrogen and carbon monoxide atmosphere.  - materials science forum.  381-385. 

norliyana mod dan rizafizah othaman.  (2015).  preparation and characterization of epoxidized natural rubber/poly (vinylidene fluoride) (enr/pvdf) thin film compositemembrane via phase conversion and solution casting technique.  - malaysia polymer international conference 2015 (mpic 2015).  . 

nurul hanisah mohd, hanieh kargarzadeh, suria ramli, ishak ahmad, mohd ambar yarmo, rizafizah othaman.  (2015).  nanocrystalline cellulose (ncc) from oil palm empty fruit bunches fibers (opefb) as a renewable resource for smart aerogel.  - malaysia polymer international conference 2015 (mpic 2015).  . 

tengku shafazila tengku saharuddin, alinda samsuri, fairous salleh, rizafizah othaman, mohammad bin kassim, mohamed wahab mohamed hisham, mohd ambar yarmo.  (2015).  influence of chromium on the reduction behavior of iron oxide by using carbon monoxide: tprand kinetic studies.  - icasit2015 : international conference on applied sciences & industrial technology 2015, grand lexis port dickson.  . 

alinda samsuri, fairous salleh, tengku shafazila tengku saharuddin, rizafizah othaman, and mohd. ambar yarmo.  (2015).  study on the reduction behaviour of nickel doped molybdenum trioxide by using carbon monoxide as reductant.  - 2015 apcbees kyoto conferences.  . 

fairous salleh, tengku shafazila tengku saharuddin, alinda samsuri, rizafizah othaman, and mohd. ambar yarmo.  (2015).  effect of zirconia and nickel doping on the reduction behavior of tungsten oxide in carbon monoxide atmosphere.  - international journal of chemical engineering and applications.  389-394. 

fairous salleh, tengku shafazila tengku saharuddin, alinda samsuri, rizafizah othaman, and mohd. ambar yarmo.  (2015).  effect of zirconia and nickel doping on the reduction behavior of tungsten oxide in carbon monoxide atmosphere.  - 2015 apcbees kyoto conferences.  . 

tengku shafazila tengku saharuddin, fairous salleh, alinda samsuri, rizafizah othaman, and mohd ambar yarmo.  (2015).  influence of noble metal (ru, os and ag) on the reduction behaviour of iron oxide using carbon monoxide: tpr and kinetic studies.  - apcbees kyoto conferences.  . 

tengku shafazila tengku saharuddin, fairous salleh, alinda samsuri, rizafizah othaman, and mohd ambar yarmo.  (2015).  influence of noble metal (ru, os and ag) on the reduction behaviour of iron oxide using carbon monoxide: tpr and kinetic studies.  - international journal of chemical engineering and applications.  405-409. 

nur hasyareeda binti hassan, rizafizah binti othaman.  (2015).  probing the coordinating abilities of ionic liquids anions towards copper (ii) centres and solvatochchromic electronic transitions for biphasic catalytic application.  - .  . 

adil hakam, irman abdul rahman, m. suzeren jamil, rizafizah othaman, m.c.i. mohamad amin, azwan mat lazim.  (2015).  removal of methylene blue dye in aqueous solution by sorption on a bacterial-g-poly-(acrylic acid) polymer network hydrogel.  - sains malaysiana.  827-834. 

alinda samsuri, tengku shafazila tengku saharuddin, fairous salleh, mohamed wahab mohamed hisham, rizafizah othaman, mohd. ambar yarmo.  (2015).  temperature programmed reduction and x-ray diffractometry studies of moo3 reduction by different concentrations of carbon monoxide.  - icasit2015 : international conference on applied sciences & industrial technology 2015.  . 

farhan mohd nor & rizafizah othaman.  (2015).  effects of mgo particle loading on gas permeation properties of epoxidized natural rubber (enr) / polyvinyl chloride (pvc) membrane.  - sains malaysiana.  875-881. 

rizafizah othaman, yeon hui yuan and muntaz abu bakar.  (2015).  factors affecting the physical properties of epoxidized natural rubber (enr)/ polyvinyl chloride (pvc) aerogels.  - oriental journal of chemistry.  697-702. 

fairous salleh, alinda samsuria, tengku shafazila tengku saharuddin, mohamed wahab mohamed hisham, rizafizah othaman and mohd. ambar yarmo.  (2015).  temperature-programmed and x-ray diffractometry studies of wo3 reduction by carbon monoxide.  - advanced materials research.  73-76. 

alinda samsuria, tengku shafazila tengku saharuddin, fairous salleh, mohamed wahab mohamed hisham, rizafizah othaman and mohd. ambar yarmo.  (2015).  reduction of moo2 to metallic molybdenum via carburization and thermal process.  - advanced materials research.  64-67. 

tengku shafazila, alinda samsuri, fairous salleh, rizafizah othaman, mohammad bin kassim, mohamed wahab mohamed hisham and bmohd ambar yarmo.  (2015).  temperature programme reduction and x-ray diffraction studies of fe2o3 reduction by different concentration of carbon monoxide.  - advanced materials research.  55-58. 

noraisah jahi, eng siew ling, rizafizah othaman, suria ramli.  (2015).  modification of oil palm plantation wastes as oil adsorbent for palm oil mill effluent (pome).  - the malaysian journal of analytical sciences.  31-40. 

fairous salleh, tengku shafazila tengku saharuddin, alinda samsuri, rizafizah othaman, mohamed wahab mohamed hisham, mohd. ambar yarmo.  (2015).  reduction behaviour of wo3 to w under carbon monoxide atmosphere.  - advanced materials characterization techniques in research, industry & nuclear applications.  34. 

alinda samsuri, tengku shafazila tengku saharuddin, fairous salleh, mohamed wahab mohamed hisham, rizafizah othaman, mohd. ambar yarmo.  (2015).  study on reduction behavious of molybdenum oxide in carbon monoxide atmosphere.  - advanced materials characterization techniques in research, industry & nuclear applications.  34. 

rizafizah othaman, nurfarahein hadina ismail, mohd razali shamsuddin, norliyana mod, nur hasyareeda hassan, ibrahim abdullah.  (2014).  composite membranes for waste water treatment.  - 1st joint international seminar of science and technology (universiti kebangsaan malaysia) and faculty of engineering (gifu university)2014.  . 

norfarhana abdul samad, rizafizah othaman and ibrahim abdullah.  (2014).  preparation and characterisation of epoxidised natural rubber/polyinyl chloride/rice husk (enr/pvc/rh) thin film composites by solution casting technique.  - international journal materials engineering innovation.  61-69. 

liew m., othaman r., khalid r., amin m.c.i.m., lazim a.m..  (2014).  sintesis hidrogel berasaskan nata de coco dengan asid akrilik sebagai ko-monomer menggunakan kaedah pempolimeran radikal bebas.  - malaysian journal of analytical sciences.  299-305. 

melissa liew, rizafizah othaman, rozida khalid, m.c.iqbal mohd amin, azwan mat lazim.  (2014).  sintesis hidrogel beraqsaskan nata de coco dengan asid akrilik sebagai ko-monomer dengan menggunakan kaedah pempolimeran radikal bebas.  - the malaysian journal of analytical sciences.  299-305. 

farhan mohd nor, ibrahim abdullah and rizafizah othaman.  (2013).  gas permeability of enr/pvc membrane with the addition of inorganic fillers.  - aip conference proceedings -ukm fst postgraduate colloquium.  . 

siti norfatihah fauzee and rizafizah othaman.  (2013).  extraction and dissolution of cellulose from nypa fruit husk for nanofibers fabrication.  - aip conference proceedings -ukm fst postgraduate colloquium.  . 

rizafizah othaman.  (2013).  editorial for special issue on emerging polymers for novel applications.  - international journal of materials engineering innovation.  4(3/4):213. 

nazwa jon, ibrahim abdullah, rizafizah othaman.  (2013).  effects of silica on the formation of epoxidised natural rubber/polyvinyl chloride membrane.  - sains malaysiana.  42(4): 469-473. 

mohd razali shamsuddin, ibrahim abdullah and rizafizah othaman.  (2013).  celluloses filled enr/pvc membranes for palm oil mill effluent (pome) treatment.  - aip conference proceedings -ukm fst postgraduate colloquium.  . 

nazwa jon, norfarhana ab. samad, nurul amni abdullah, ibrahim abdullah, rizafizah othaman.  (2013).  influence of silica addition on the properties of epoxidised natural rubber/polyvinyl chloride composite membrane.  - journal of applied polymer science.  129(5):2789-2795. 

rizafizah othaman, yeoh lee shi, nur farahein hadina ismail, norfarhana ab. samad and mohd razali samsuddin.  (2013).  rice husk filled epoxidised natural rubber/ polyvinyl chloride (enr/pvc) membrane for treatment of waste water containing methylene blue dye.  - program and abstracts book : 26th regional symposium malaysian analytical sciences (skam26).  . 

farhan mohd nor, ibrahim abdullah, rizafizah othaman.  (2013).  effect of mgo particle loading on gas permeation properties of epoxidized natural rubber (enr) / polyvinyl chloride (pvc) membrane.  - program and abstract book : malaysia polymer international conference 2013.  . 

mohd razali shamsuddin, siti norfatihah fauzee, farah hannan anuar, ibrahim abdullah, rizafizah othaman.  (2013).  modification of cellulose by polymethyl methacrylate grafting for membrane applications.  - jurnal teknologi.  65(2):47-53. 

azlin mohamad azman, khairiah hj badri, rizafizah othaman, azizah baharum, chia chin hua, ishak ahmad, sharina abu hanifah, mohd suzeren md jamil, mohd sukor suait, farah hannan anuar.  (2013).  progress in polymer research vol. ii : emerging polymers for novel applications.  - .  262. 

siti norfatihah fauzee and rizafizah othaman.  (2013).  characterization of electrospun pvc/cellulose nanofiber and its potential as a membrane.  - program and abstracts book : 26th regional symposium malaysian analytical sciences (skam26).  . 

n.a. abdullah, i. abdullah, r. othaman.  (2013).  influence of solvent and drop distance on the formation of enr/pvc/silica aerogel beads.  - international journal of materials engineering innovation.  4(3/4):269-280. 

rizafizah othaman, khairiah haji badri, sharina abu hanifah, zuriati zakaria, yang farina abdul aziz, rusli daik.  (2012).  chemistry outreach program and its impact on secondary school students.  - procedia social and behavioral sciences - ukm teaching and learning congress 2011.  . 

nurul amni abdullah, rizafizah othaman, ibrahim abdullah, nazwa jon and azizah baharum.  (2012).  studies on the adsorption of phenol red dye using silica-filled enr/pvc beads.  - journal of emerging trends in engineering and applied sciences.  3(5):845-850. 

zaitun ghazali, rizafizah othaman, md pauzi abdullah.  (2012).  preparation of activated carbon from coconut shell to remove aluminum and manganese in drinking water.  - advances in natural and applied sciences.  6(8):1307-1312. 

rizafizah othaman, khairiah haji badri, sharina abu hanifah, zuriati zakaria, yang farina abdul aziz dan rusli daik.  (2011).  program kimia jangkau luar dan impaknya kepada pelajar sekolah menengah.  - kongres pengajaran & pembelajaran ukm 2011.  . 

mohd razali shamsuddin, rizafizah othaman, muhammad ismail idris, rosilah azmi.  (2011).  comparison of acidic and alkaline treatments in extraction of celullose from pineapple leaves.  - malaysia polymer international conference (mpic 2011).  . 

norfarhana ab. samad, rizafizah othaman, ibrahim abdullah.  (2011).  preparation of epoxidized natural rubber/polyvinyl chloride/rice husk (enr/pvc/rh) composite membrane by phase inversion method.  - malaysia polymer international conference (mpic) 2011, bangi, malaysia.  . 

rizafizah othaman, siti norfatihah fauzee.  (2011).  extraction and characterization of cellulose from the husk of nypa fruticans.  - malaysia polymer international conference (mpic 2011), ukm bangi.  . 

rizafizah othaman, agus susilo, hiroaki habaki, and ryuichi egashira.  (2009).  treatment of wastewater containing wood waste pyroligneous acid preservative by activated carbon in rubberwood manufacturing process.  - asean journal of chemical engineering (ajche).  2(1):1-7. 

rizafizah othaman, kean giap lim, shunsuke konishi, ryuichi egashira and hiroaki habaki.  (2008).  utilization of thermal treatment products from wood residues to improve rubberwood manufacturing process.  - international workshop on process intensification 2008 at tokyo institute of technology, japan.  . 

rizafizah othaman, agus susilo, hiroaki habaki and ryuichi egashira.  (2008).  treatment of wastewater containing wood waste pyroligneous acid preservative by activated carbon in rubberwood manufacturing process.  - rsce-somche 2008 in kuala lumpur, malaysia.  . 

r. othaman, a. susilo, h. habaki, r. egashira.  (2008).  adsorption of preservative components of pyroligneous acid by rubberwood activated carbon.  - the society of chemical engineers, japan, 40th autumn meeting, sendai, japan.  . 

rizafizah othaman, kean giap lim, shunsuke konishi, masayuki sato, nan shi and ryuichi egashira.  (2008).  thermal treatment of wood residues and effective utilization of its products to improve rubberwood manufacturing process.  - journal of chemical engineering of japan.  41(12):1149-1158. 

r. othaman· a. susilo, r. egashira.  (2008).  treatment of wastewater containing model pyroligneous acid preservative by rubberwood charcoal.  - the society of chemical engineers, japan(scej) 73th annual meeting, hamamatsu, japan.  . 

rizafizah othaman, lim kean giap, konishi shunsuke, sato masayuki, qi shanshan, shi nan, egashira ryuichi.  (2007).  thermal treatment of rubberwood residue for its effectual use.  - international conference on incineration and thermal treatment technologies (it3), phoenix, usa.  .