Antiphotocorrosive photocatalysts containing CdS nanoparticles and exfoliated TiO2 nanosheets

被引：39

作者：

Yan, Xiaoxia ^{[1
,2
]}

Liu, Gang ^{[1
,2
]}

Wang, Lianzhou ^{[1
,2
,3
]}

Wang, Yong ^{[1
,2
,3
]}

Zhu, Xianfang ^{[4
]}

Zou, Jin ^{[3
]}

Lu, Gao Qing ^{[1
,2
]}

机构：

[1] Univ Queensland, Australian Res Council, Ctr Excellence Funct Nanomat, Sch Chem Engn, Brisbane, Qld 4072, Australia

[2] Univ Queensland, Australian Inst Bioengn & Nanotechnol, Brisbane, Qld 4072, Australia

[3] Univ Queensland, Sch Engn, Brisbane, Qld 4072, Australia

[4] Xiamen Univ, Dept Phys, China Australia Joint Lab Funct Nanomat, Xiamen 361005, Peoples R China

来源：

JOURNAL OF MATERIALS RESEARCH | 2010年 / 25卷 / 01期

基金：

澳大利亚研究理事会;

关键词：

VISIBLE-LIGHT IRRADIATION; TITANIA NANOSHEETS; HOLLOW SHELLS; ARCHITECTURES; DEGRADATION; HYDROGEN; DIOXIDE; FILMS; WATER;

D O I：

10.1557/JMR.2010.0007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Aimed at designing an efficient visible light active photocatalyst and suppressing the self-corrosion tendency of CdS nanoparticles, a novel composite consisting of CdS nanoparticles and exfoliated two-dimensional (2D) TiO2 nanosheets was successfully fabricated using a simple self-assembly process. The prepared samples were characterized using various techniques including x-ray diffraction, ultraviolet-visible absorption spectroscopy, x-ray photoelectron spectroscopy, scanning electron microscopy, and transmission electron microscopy. It was found that the exfoliated 2D nanosheets played an important role as an ultrathin coating to suppress the photocorrosion of CdS nanoparticles, evidenced by inductively coupled plasma-atomic emission spectrometer analysis. The resultant CdS/TiO2 composites exhibited enhanced photocatalytic activity in the oxidation of Rhodamine B in water under visible light irradiation (lambda > 420 nm).

引用

页码：182 / 188

页数：7

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