Solar photocatalytic and surface enhancement of ZnO/rGO nanocomposite: degradation of perfluorooctanoic acid and dye

Ong, Chin Boon and Mohammad, Abdul Wahab and Ng, Law Yong and Mahmoudia, Ebrahim and Azizkhani, Sepehr and Hairom, Nur Hanis Hayati (2017) Solar photocatalytic and surface enhancement of ZnO/rGO nanocomposite: degradation of perfluorooctanoic acid and dye. Process Safety and Environmental Protection, 112 . pp. 298-307. ISSN 09575820

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Official URL: http://dx.doi.org/10.1016/j.psep.2017.04.031

Abstract

In this work, ZnO/rGO nanocomposites (NCs) were synthesized through a low temperaturesol–gel method. Zinc oxide decorated on graphene sheets could provide surface enhance-ment and hinder the rapid recombination rate of electron hole pairs that occur during aphotocatalysis process. It has been observed that the loading of ZnO decorated on graphenesheets is important in controlling the morphologies and surface enhancement of ZnO/rGONCs. Field Emission Scanning Electron Microscope (FESEM) micrographs reveal that spheri-cal shape and hexagonal-based nanopyramid of ZnO can be formed at low and high loadingof ZnO, respectively. NCs showed excellent performance for degradation of perfluorooc-tanoic acid (PFOA) and methyl orange in aqueous solution under solar irradiation. Herein,mechanisms for the formation of different shapes of ZnO nanostructures decorated ongraphene and their enhancement towards surface and photoactivity were discussed indetails.

Item Type:Article
Uncontrolled Keywords:Photocatalytic; ZnO/rGO; nanocomposites; perfluorooctanoic acid; methyl orange; solar photocatalysis
Subjects:T Technology > TP Chemical technology > TP155-156 Chemical engineering
Divisions:Faculty of Engineering Technology > Department of Chemical Engineering Technology
ID Code:11069
Deposited By:Mr. Mohammad Shaifulrip Ithnin
Deposited On:13 May 2019 09:08
Last Modified:13 May 2019 09:08

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