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Materials 2018, 11(6), 1004; https://doi.org/10.3390/ma11061004

Efficient Photocatalytic Degradation of Malachite Green in Seawater by the Hybrid of Zinc-Oxide Nanorods Grown on Three-Dimensional (3D) Reduced Graphene Oxide(RGO)/Ni Foam

1
Department of Chemical Engineering, Huaihai Institute of Technology, Lianyungang 222005, China
2
Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, Australian Institute of Innovative Materials, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia
*
Authors to whom correspondence should be addressed.
Received: 9 May 2018 / Revised: 1 June 2018 / Accepted: 12 June 2018 / Published: 13 June 2018
(This article belongs to the Special Issue Nano-based Catalysts for Renewable Energy)
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Abstract

A hybrid of ZnO nanorods grown onto three-dimensional (3D) reduced graphene oxide (RGO)@Ni foam (ZnO/RGO@NF) is synthesized by a facile hydrothermal method. The as-prepared hybrid material is physically characterized by SEM, XRD, Raman, and X-ray photoelectron spectroscopy (XPS). When the as-prepared 3D hybrid is investigated as a photocatalyst, it demonstrates significant high photocatalytic activity for the degradation of methylene blue (MB), rhodamine (RhB), and mixed MB/RhB as organic dye pollutants. In addition, the practical application and the durability of the as-prepared catalyst to degradation of malachite green (MG) in seawater are firstly assessed in a continuous flow system. The catalyst shows a high degradation efficiency and stable photocatalytic activity for 5 h continuous operation, which should be a promising catalyst for the degradation of organic dyes in seawater. View Full-Text
Keywords: reduced graphene oxide; ZnO nanorods; Ni foam; photocatalyst; organic dye degradation reduced graphene oxide; ZnO nanorods; Ni foam; photocatalyst; organic dye degradation
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Wang, Q.; Cai, C.; Wang, M.; Guo, Q.; Wang, B.; Luo, W.; Wang, Y.; Zhang, C.; Zhou, L.; Zhang, D.; Tong, Z.; Liu, Y.; Chen, J. Efficient Photocatalytic Degradation of Malachite Green in Seawater by the Hybrid of Zinc-Oxide Nanorods Grown on Three-Dimensional (3D) Reduced Graphene Oxide(RGO)/Ni Foam. Materials 2018, 11, 1004.

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