Fabrication of graphene oxide/titanium dioxide hybrid material for solar cell and membrane application

This study aimed to fabricate graphene oxide (GO)/titanium dioxide (TiO2) hybridbasedmaterial for dye-sensitized solar cells (DSSCs) and membrane separationapplications. The electrochemical exfoliation assisted by customized triple-tail sodium1, 4-bis (neopentyloxy)-3-(neopentyloxycarbonyl)-1, 4-dio...

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Main Author:	Muqoyyanah
Format:	thesis
Language:	eng
Published:	2019
Subjects:	QD Chemistry
Online Access:	https://ir.upsi.edu.my/detailsg.php?det=6352
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institution	Universiti Pendidikan Sultan Idris
collection	UPSI Digital Repository
language	eng
topic	QD Chemistry
spellingShingle	QD Chemistry Muqoyyanah Fabrication of graphene oxide/titanium dioxide hybrid material for solar cell and membrane application
description	This study aimed to fabricate graphene oxide (GO)/titanium dioxide (TiO2) hybridbasedmaterial for dye-sensitized solar cells (DSSCs) and membrane separationapplications. The electrochemical exfoliation assisted by customized triple-tail sodium1, 4-bis (neopentyloxy)-3-(neopentyloxycarbonyl)-1, 4-dioxobutane-2-sulphonate(TC14) and commercially available single-tail sodium dodecyl sulphate (SDS)surfactants were used to synthesize GO with water-based electrolyte and N, Ndimethylacetamide(DMAc) as solvents. The chemical reduction process utilizinghydrazine hydrate was then performed to produce reduced GO (rGO) which furtherhybridized with multi-walled carbon nanotubes (MWCNTs). The fabrication of DSSCscounter electrode (CE) was done by spraying deposition method on fluorine-doped tinoxide (FTO) as substrate and also coated by thin platinum (Pt). Meanwhile, differentvariety of TiO2 nanostructures as DSSCs photoanode were synthesized byhydrothermal growth and squeegee methods with different recepi and synthesis time.On the other hand, the DMAc-based GO was used to fabricate nanofiltration (NF)membrane utilizing polyvinylidene fluoride (PVDF) as the main polymer material byusing phase inversion method. The DSSCs and NF membrane samples werecharacterized using solar simulator and dye rejection test, respectively. The DSSCsfinding showed that the highest energy conversion efficiency (1.559%) was achievedby TiO2 NRs-NFs/TC14-rGO/TiO2 NPs as photoanode and TC14-rGO_MWCNTs/Ptas CE with the value of open circuit voltage, short circuit density, and fill factor were0.747 V, 3.275 mA/cm2, and 53.5, respectively. Meanwhile, the NF membrane findingshowed that PVDF/SDS-GO/TiO2 presents the highest dye flux (10.148 L/m2h) andhigh dye rejection efficiency (~92.76%). In conclusion, the synthesized GO showed apotential to be applied as electrode thin films and also membrane materials. Implicationof this study is a novel, simpler, low-cost, and less harsh chemical for the GO synthesisto fabricate CE and photoanode film for DSSCs and also NF membrane.
format	thesis
qualification_name
qualification_level	Doctorate
author	Muqoyyanah
author_facet	Muqoyyanah
author_sort	Muqoyyanah
title	Fabrication of graphene oxide/titanium dioxide hybrid material for solar cell and membrane application
title_short	Fabrication of graphene oxide/titanium dioxide hybrid material for solar cell and membrane application
title_full	Fabrication of graphene oxide/titanium dioxide hybrid material for solar cell and membrane application
title_fullStr	Fabrication of graphene oxide/titanium dioxide hybrid material for solar cell and membrane application
title_full_unstemmed	Fabrication of graphene oxide/titanium dioxide hybrid material for solar cell and membrane application
title_sort	fabrication of graphene oxide/titanium dioxide hybrid material for solar cell and membrane application
granting_institution	Universiti Pendidikan Sultan Idris
granting_department	Fakulti Sains dan Matematik
publishDate	2019
url	https://ir.upsi.edu.my/detailsg.php?det=6352
_version_	1747833258011262976
spelling	oai:ir.upsi.edu.my:63522021-10-25 Fabrication of graphene oxide/titanium dioxide hybrid material for solar cell and membrane application 2019 Muqoyyanah QD Chemistry This study aimed to fabricate graphene oxide (GO)/titanium dioxide (TiO2) hybridbasedmaterial for dye-sensitized solar cells (DSSCs) and membrane separationapplications. The electrochemical exfoliation assisted by customized triple-tail sodium1, 4-bis (neopentyloxy)-3-(neopentyloxycarbonyl)-1, 4-dioxobutane-2-sulphonate(TC14) and commercially available single-tail sodium dodecyl sulphate (SDS)surfactants were used to synthesize GO with water-based electrolyte and N, Ndimethylacetamide(DMAc) as solvents. The chemical reduction process utilizinghydrazine hydrate was then performed to produce reduced GO (rGO) which furtherhybridized with multi-walled carbon nanotubes (MWCNTs). The fabrication of DSSCscounter electrode (CE) was done by spraying deposition method on fluorine-doped tinoxide (FTO) as substrate and also coated by thin platinum (Pt). Meanwhile, differentvariety of TiO2 nanostructures as DSSCs photoanode were synthesized byhydrothermal growth and squeegee methods with different recepi and synthesis time.On the other hand, the DMAc-based GO was used to fabricate nanofiltration (NF)membrane utilizing polyvinylidene fluoride (PVDF) as the main polymer material byusing phase inversion method. The DSSCs and NF membrane samples werecharacterized using solar simulator and dye rejection test, respectively. The DSSCsfinding showed that the highest energy conversion efficiency (1.559%) was achievedby TiO2 NRs-NFs/TC14-rGO/TiO2 NPs as photoanode and TC14-rGO_MWCNTs/Ptas CE with the value of open circuit voltage, short circuit density, and fill factor were0.747 V, 3.275 mA/cm2, and 53.5, respectively. Meanwhile, the NF membrane findingshowed that PVDF/SDS-GO/TiO2 presents the highest dye flux (10.148 L/m2h) andhigh dye rejection efficiency (~92.76%). In conclusion, the synthesized GO showed apotential to be applied as electrode thin films and also membrane materials. Implicationof this study is a novel, simpler, low-cost, and less harsh chemical for the GO synthesisto fabricate CE and photoanode film for DSSCs and also NF membrane. 2019 thesis https://ir.upsi.edu.my/detailsg.php?det=6352 https://ir.upsi.edu.my/detailsg.php?det=6352 text eng closedAccess Doctoral Universiti Pendidikan Sultan Idris Fakulti Sains dan Matematik Abdelkader, A. M., Cooper, A. J., Dryfe, R. A. W., & Kinloch, I. A. (2015). How to get betweenthe sheets: A review of recent works on the electrochemical exfoliation of graphenematerials from bulk graphite. Nanoscale, 7, 69446956.Aboutalebi, S. H., Chidembo, A. T., Salari, M., Konstantinov, K., Wexler, D., Liu, H. K., et al.(2011). 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