Facile synthesis and enhanced photocatalytic activity of ZnSe/TiO2-xNx composite nanoparticles

被引：11

作者：

Zhang, Huarong ^{[1
,2
,3
]}

Miao, Guashuai ^{[2
,3
]}

Ma, Xingping ^{[2
,3
]}

Wang, Bei ^{[2
,3
]}

Zheng, Haiwu ^{[1
,2
,3
]}

机构：

[1] Henan Univ, Key Lab Photovolta Mat Henan Prov, Kaifeng 475001, Peoples R China

[2] Henan Univ, Inst Microsyst Phys, Kaifeng 475001, Peoples R China

[3] Henan Univ, Sch Phys & Elect, Kaifeng 475001, Peoples R China

来源：

MATERIALS LETTERS | 2014年 / 121卷

关键词：

TiO2; ZnSe; Composite materials; Photocatalytic activity; X-ray techniques; MODIFIED TIO2;

D O I：

10.1016/j.matlet.2014.01.171

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ZnSe/TiO2-xNx composite nanoparticles with the average grain size of about 20 nm were fabricated by the hydrothermal-solvothermal method. The result of HRTEM confirmed the formation of heterostructures in the composite samples. Slight absorption edge red-shifts were observed in the absorption spectra after modifying TiO2-xNx with ZnSe. The photoacatalyic activity for the degradation of methylene blue solution over TiO2-xNx was obviously enhanced after coupling with ZnSe. The sample of 2% ZnSe/ TiO2-xNx exhibited the best photocatalytic performance among the prepared samples. However, the photocatalytic activity of the sample was depressed as the ratio of Zn:Ti increases to 5% because the surface active sites of the photocatalyst were covered by ZnSe nanoparticles. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：188 / 190

页数：3

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