基于SnO2/Fe3O4粒子电极的三维电极体系的电催化性能*

doi:10.11896/j.issn.1005-023X.2017.08.006

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Abstract SnO₂/Fe₃O₄ particle electrodes with good magnetic properties were prepared by a hydrothermal method. The morphology, crystal phase composition and magnetic properties of the electrodes were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and hysteresis testing, respectively. The electrocatalytic property was investigated by cyclic voltammetry, and the electrochemical degradation of artificial Rhodamine B (RhB) waste water was conducted in a multi-electrode reactor. Results showed that the catalytic layer of the as-prepared particle electrode had stable load and good conduction, and was easy to recycle and reuse, which benefit the electrocatalytic reaction. The multi-electrode system was far better at degrading RhB than a two-dimensional electrode system, as the former′s removal rate of RhB and total organic carbon (TOC) were 100% and 83%, respectively. In the reaction,·OH is the main active radical for the degradation of organic compounds. Moreover, the removal rate of RhB and total organic carbon (TOC) maintained above 93% and 77%, respectively, after the particle electrode were reused 5 times, exhibiting an excellent and stable electrocatalytic performance.

Key words： SnO₂/Fe₃O₄ particle electrode cyclic voltammetry curve electrocatalytic degradation reaction mechanism stability

Published: 02 May 2018

CLC number:

O646

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	Articles by authors
	ZHANG Xianfeng
	ZHAO Chaocheng
	WANG Dejun
	ZHAO Yuanyuan
	ZHANG Yong
	GUO Rui

Cite this article:

ZHANG Xianfeng,ZHAO Chaocheng,WANG Dejun, et al. Electrocatalytic Performance of Three-dimensional Electrode System with SnO₂/Fe₃O₄ Particle Electrode[J]. Materials Reports, 2017, 31(8): 25-30.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.08.006 OR http://www.mater-rep.com/EN/Y2017/V31/I8/25

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