Photocatalytic performance of novel chromium oxide-silicon dioxide decorated on multi-walled carbon nanotubes and graphene oxide nanocomposites: Preparation, structural, and optimization

Ashraf, Muhammad Aqeel and Liu, Zhenling and Zheng, Dongfang and Li, Cheng and Peng, Wan Xi and Fakhri, Ali (2020) Photocatalytic performance of novel chromium oxide-silicon dioxide decorated on multi-walled carbon nanotubes and graphene oxide nanocomposites: Preparation, structural, and optimization. Physica E: Low-dimensional Systems and Nanostructures, 116. p. 113723. ISSN 1386-9477

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Official URL: https://doi.org/10.1016/j.physe.2019.113723

Abstract

In this project, we successfully prepared Cr2O3-SiO2/graphene oxide (GO) or multi-walled carbon nanotubes (MWCNTs) by microwave/ultrasonic/hydrothermally method, aiming for the photo-degradation capture of Parathion compound from aqueous solutions. For the removal of Parathion, the photocatalysis properties is different and the apparent degradation amount sequence is SiO2 < Cr2O3-SiO2 < Cr2O3-SiO2/MWCNTs < Cr2O3-SiO2/GO nano-catalyst. Compared with bare SiO2 particles, Cr2O3-SiO2, and Cr2O3-SiO2/MWCNTs, the prepared Cr2O3-SiO2/GO exhibits the excellent photocatalytic performance for the UV light degradation of Parathion compound. The maximum photo-degradation of Parathion by Cr2O3-SiO2/GO was carried out after 60 min of contact time under UV light. The response surface method with box-behnken design was used to optimization of Parathion photo-degradation. Moreover, the good stability and convenient recycling of the prepared Cr2O3-SiO2/MWCNTs and Cr2O3-SiO2/GO nanocomposites further make it have excellent application aim in removal of organic pollution. © 2019 Elsevier B.V.

Item Type: Article
Uncontrolled Keywords: SiO2; Cr2O3; Graphene oxide; MWCNTs; Photocatalysis
Subjects: Q Science > Q Science (General)
Q Science > QE Geology
Divisions: Faculty of Science > Dept of Geology
Depositing User: Mr Faizal 2
Date Deposited: 14 Jan 2015 02:01
Last Modified: 11 Nov 2019 01:51
URI: http://eprints.um.edu.my/id/eprint/11984

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