This study aimed to fabricate and characterise graphene oxide (GO) and reduced GO (rGO)-based composite nanofiltration (NF) membrane for water treatment application. Electrochemical exfoliation method assisted by customised triple-tail 1- butyl-3-imidazolium 1,4-bis(neopentyloxy)-3-(neopentyloxycarbonyl) 1,4- dioxobutane 2-sulphate (BMIM-TC14) and sodium 1,4-bis(neopentyloxy)-3- (neopentyloxycarbonyl)-1,4-dioxobutane-2-sulphonate (TC14) surfactants were used to synthesise GO with N, N-dimethylacetamide (DMAC) used as solvent. Chemical reduction process utilising hydrazine hydrate was then performed to produce rGO from GO. Next, GO- and rGO-based composite NF membrane were then fabricated via non-solvent induced phase separation method utilising DMAC-GO and -rGO, titanium dioxide (TiO2), multi-walled carbon nanotubes (MWCNTs), polyvinyl alcohol (PVA), polyvinylpyrrolidone (PVP) and poly (methyl methacrylate) (PMMA) as additives, while polyvinylidene fluoride (PVDF) and polye.....

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