Microwave synthesis of magnetically separable ZnFe2O4-reduced graphene oxide for wastewater treatment

Jumeri, F.A.; Lim, H.N.; Ariffin, S.N.; Huang, N.M.; Teo, P.S.; Fatin, S.O.; Chia, C.H.; Harrison, I.

Abstract

A magnetically separable ZnFe2O4-reduced graphene oxide (rGO) nano-composite was synthesised via a microwave method. Field emission scanning electron microscopy images of the nano-composite showed a uniform dispersion of nanoparticles on the rGO sheets. The performance of the nano-composite in wastewater treatment was assessed by observing the decomposition of methylene blue. The nano-composite showed excellent bifunctionality, i.e. adsorption and photocatalytic degradation of methylene blue, for up to five cycles of water treatment when illuminated with light from a halogen bulb. In contrast, water treatment with the nano-composite without illumination and the illuminated rGO, with no decoration of nanoparticles, diminished significantly after the first treatment. The reclamation of the ZnFe2O4-rGO nano-composite from treated water could be easily achieved by applying an external magnetic field.

Citation

Jumeri, F., Lim, H., Ariffin, S., Huang, N., Teo, P., Fatin, S., Chia, C., & Harrison, I. (2014). Microwave synthesis of magnetically separable ZnFe2O4-reduced graphene oxide for wastewater treatment. Ceramics International, 40(5), 7057-7065. https://doi.org/10.1016/j.ceramint.2013.12.037

• Journal Article Type: Article
• Acceptance Date: Dec 10, 2013
• Online Publication Date: Dec 17, 2013
• Publication Date: 2014-06
• Deposit Date: Nov 4, 2020
• Journal: Ceramics International
• Print ISSN: 0272-8842
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 40
• Issue: 5
• Pages: 7057-7065
• DOI: https://doi.org/10.1016/j.ceramint.2013.12.037
• Keywords: Process Chemistry and Technology; Materials Chemistry; Electronic, Optical and Magnetic Materials; Surfaces, Coatings and Films; Ceramics and Composites
• Public URL: https://nottingham-repository.worktribe.com/output/5017554
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0272884213016404
• Additional Information: This article is maintained by: Elsevier; Article Title: Microwave synthesis of magnetically separable ZnFe2O4-reduced graphene oxide for wastewater treatment; Journal Title: Ceramics International; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.ceramint.2013.12.037; Content Type: article; Copyright: Copyright © 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.