Fabrication of graphene oxide-based membrane and durian shell-based activated carbon for water treatment application

Rosmanisah Mohamat

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Type :	Thesis
Subject :	TA Engineering (General). Civil engineering (General)
Main Author :	Rosmanisah Mohamat
Title :	Fabrication of graphene oxide-based membrane and durian shell-based activated carbon for water treatment application
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Place of Production :	Tanjong Malim
Publisher :	Fakulti Sains dan Matematik
Year of Publication :	2020
Notes :	With cd
Corporate Name :	Perpustakaan Tuanku Bainun
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Abstract : Perpustakaan Tuanku Bainun

This study aimed to fabricate polyvinylidene fluoride (PVDF)/graphene oxide (GO)/titanium dioxide (TiO₂)-based nanofiltration (NF) membrane and durian shell based-activated carbon (DAC) for water treatment application. The electrochemical exfoliation assisted by customized double-tail sodium bis(3,5,5-trimethyl-1-hexyl) sulphosuccinate (AOT4) and triple-tail sodium 1,4-bis(neopentyloxy)-3-(neopentyloxycarbonyl)-1,4-dioxobutane-2-sulphonate (TC14) surfactants were used to synthesize GO with N, N-dimethylacetamide (DMAc) as solvent. The fabrication of PVDF/GO/TiO₂-based NF membrane was done via non-solvent induced phase separation method by utilizing DMAc_GO based and TiO₂ as an additives and also PVDF as a main polymer material. On the other hand, durian shell was used to produce DAC by utilizing sulphuric acid as an activator agent via chemical activation method. The NF membrane samples via dead-end cell measurement as membrane separation were used for methylene blue (MB) dye rejection. Meanwhile, the DAC samples via adsorption process as adsorbent were then used for MB dye removal. The findings showed the PVDF/TC14-GO/TiO₂ NF membrane presented the highest dye flux (98.539 L/m²h) and dye rejection efficiency (92.61%) as compared to PVDF/AOT4-GO/TiO₂ membrane. This was due to the higher surfactants’ tail number improved the fabricated membrane performance. The DAC sample showed the maximum adsorption percentage (92.05%) by utilizing 0.6 g DAC dosage, 10 ppm initial MB concentration and 15 minutes contact time. In conclusion, the fabricated PVDF/TC14-GO/TiO₂ and durian shell provided a potential to be applied as NF membrane material and activated carbon, respectively. Implication of this study is a novel, simpler, low-cost and greener for the PVDF/GO/TiO₂ NF membrane fabrication and activated carbon from durian shell production.

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