CoFe2O4@TiO2@Au Core-Shell Structured Microspheres: Synthesis and Photocatalyltic Properties期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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CoFe2O4@TiO2@Au Core-Shell Structured Microspheres: Synthesis and Photocatalyltic Properties

Authors:	Guo X H Ma J Q Ge H G

Institution:	1.Shaanxi Province Key Laboratory of Catalytic Fundamentals and Applications, Shaanxi, P.R. China ;2.School of Chemical and Environmental Sciences, Shaanxi University of Technology, HanZhong 723000, Shaanxi, P.R. China ;

Abstract:	A facile and efficient method for fabrication of magnetic composite microspheres CoFe₂O₄@TiO₂@Au is demonstrated. The shells of anatase TiO₂ were coated onto a magnetic CoFe₂O₄ core via liquid-phase deposition procedure, and then Au nanoparticles were deposited onto CoFe₂O₄@TiO₂ microspheres through seed-mediated growth. XRD, TEM, and VSM were used to investigate the structure, morphology and magnetic properties of the samples, their photocatalytic activity were also tested. Heterostructure of CoFe₂O₄@TiO₂@Au was confirmed by different measurements. Compared to unmodified CoFe₂O₄@TiO₂ microspheres, CoFe₂O₄@TiO₂@Au microspheres showed higher photocatalytic activity for Rhodamine B (RhB) degradation in water.

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