Study of graphene oxide-polymer nanocomposite (GPN) adsorptive membrane for lead removal from wastewater

Nik Abdul Ghani, Nik Rashidah and Jami, Mohammed Saedi and Engliman, Nurul Sakinah and Amosa, Mutiu K. and Isa, Mohamed Hasnain (2021) Study of graphene oxide-polymer nanocomposite (GPN) adsorptive membrane for lead removal from wastewater. Journal of Engineering Science & Technology. ISSN 1823-4690 (In Press)

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Abstract

The utilisation of polymeric membrane has been reported in numerous investigations on wastewater management of heavy metals. In this work, graphene oxide-polymer nanocomposite (GPN) adsorptive membranes were fabricated via non-solvent induced phase inversion (NIPS) method for lead removal. The modification of polyethersulfone (PES) membrane was conducted by incorporating graphene oxide (GO) in the matrix polymer solution. The characterisation of the GPN membranes were investigated through porosity, scanning electron microscopy (SEM) and atomic force microscopy (AFM). Optimisation of batch adsorption experiments on the GPN membrane fabricated with 0.5 wt.% of GO with the addition of 0.5 wt.% of polyvinylpyrrolidone (PVP) exhibited the highest lead removal that is about 97.81% under 60 minutes exposure and acidic condition (pH 5). Langmuir isotherm model was found to be the best-fitting for the lead adsorption process. The findings indicated that the monolayer adsorption mechanism occurred on the surface of the GPN membrane.

Item Type:	Article (Journal)
Additional Information:	5545/88586
Uncontrolled Keywords:	Graphene oxide, Nanocomposite adsorptive membrane, Optimisation adsorption, Lead removal, Wastewater treatment.
Subjects:	T Technology > TP Chemical technology > TP155 Chemical engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering
Depositing User:	Prof. Ir. Dr. Mohammed Saedi Jami, PhD CEng MIChemE
Date Deposited:	01 Mar 2021 10:31
Last Modified:	06 May 2021 15:18
URI:	http://irep.iium.edu.my/id/eprint/88586

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