Synthesis and photoactivity of nanostructured CdS-TiO2 composite catalysts

被引：159

作者：

Li, Xin ^{[1
,2
]}

Xia, Ting ^{[1
]}

Xu, Changhui ^{[1
]}

Murowchick, James ^{[3
]}

Chen, Xiaobo ^{[1
]}

机构：

[1] Univ Missouri, Dept Chem, Kansas City, MO 64110 USA

[2] South China Agr Univ, Coll Sci, Inst Biomat, Guangzhou 510642, Guangdong, Peoples R China

[3] Univ Missouri, Dept Geosci, Kansas City, MO 64110 USA

来源：

CATALYSIS TODAY | 2014年 / 225卷

基金：

美国国家科学基金会;

关键词：

Titanium dioxide; CdS; Amorphous; Composite; Photocatalyst; PHOTOCATALYTIC HYDROGEN-PRODUCTION; CDS QUANTUM DOTS; CADMIUM-SULFIDE; SOLVOTHERMAL SYNTHESIS; TEMPERATURE SYNTHESIS; NANOCRYSTALLINE CDS; TIO2; NANOTUBES; CARBON-DIOXIDE; THIN-FILMS; LIGHT;

D O I：

10.1016/j.cattod.2013.10.086

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In this paper, a series of nanostructured TiO2-CdS composite photocatalysts have been synthesized using an aqueous solution route at room temperature, and characterized with X-ray diffraction (XRD), Raman spectroscopy, transmission electron microscopy (TEM), UV-VIS absorption and Fourier transform infrared spectroscopy (FTIR). Their photocatalytic activities have been investigated on the degradation of methylene blue under simulated solar light irradiation. CdS shows the highest activity when the ratio of the starting materials Na2S to Cd(NO3)(2) is close to 1.0, TiO2 shows the best activity when prepared under pH = 13.0, and the CdS/TiO2 composite with the molar ratio of TiO2 to CdS of 50 displays the highest activity. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：64 / 73

页数：10

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