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NiFe-LDH@ZnO@NF composite for photo-degradation of Rhodamine B dye

Published online by Cambridge University Press:  10 May 2019

Jun Wu ,
Yonghui Gong ,
Qiang Fu  and
Chunxu Pan
Jun Wu
Affiliation:
School of Physics and Technology, and MOE Key Laboratory of Artificial Micro- and Nano-structures, Wuhan University, Wuhan, 430072, China
Yonghui Gong
Affiliation:
School of Physics and Technology, and MOE Key Laboratory of Artificial Micro- and Nano-structures, Wuhan University, Wuhan, 430072, China
Qiang Fu
Affiliation:
School of Physics and Technology, and MOE Key Laboratory of Artificial Micro- and Nano-structures, Wuhan University, Wuhan, 430072, China
Chunxu Pan*
Affiliation:
School of Physics and Technology, and MOE Key Laboratory of Artificial Micro- and Nano-structures, Wuhan University, Wuhan, 430072, China
*
*(Email: cxpan@whu.edu.cn)
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Abstract

In this paper, a novel NiFe-LDH@ZnO composite was prepared by using a facile two-step process upon nickel foam (NF) substrate. The morphologies and chemical compositions of the samples were characterized by SEM, EDS, XRD and XPS. Photocatalytic degradation of Rhodamine B dye was tested with the samples NiFe-LDH@ZnO@NF, ZnO@NF and NiFe-LDH under the same conditions. The experimental results revealed that the NiFe-LDH@ZnO@NF composite exhibited excellent photocatalytic performance, i.e., 1.4 and 2.5 times higher than that of pure ZnO and NiFe-LDH, respectively. The reason was that the NiFe-LDH@ZnO@NF composite provided a possibility to effectively inhibit the recombination of the photogenerated electron-hole pairs, and therefore enhanced the photocatalytic efficiency. This composite is expected to have potential applications in wastewater treatment field.

Keywords

compositecatalytic
Type
Articles
Information
MRS Advances , Volume 4 , Issue 33-34: Energy and Sustainability , 2019 , pp. 1887 - 1893
Copyright
Copyright © Materials Research Society 2019 

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