Sunlight-driven photodegradation of organic pollutants catalyzed by TiO2/(ZnS)x(CuInS2)1−x nanocomposites

Yuhan Lin; Fang Zhang; Daocheng Pan; Hexing Li; Yunfeng Lu

doi:10.1039/C2JM30540B

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Sunlight-driven photodegradation of organic pollutants catalyzed by TiO₂/(ZnS)_x(CuInS₂)_1−x nanocomposites†

Yuhan Lin,^a Fang Zhang,^b Daocheng Pan,*^a Hexing Li*^b and Yunfeng Lu*^c

Author affiliations

* Corresponding authors

^a State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
E-mail: pan@ciac.jl.cn

^b The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
E-mail: HeXing-Li@shnu.edu.cn

^c Department of Chemical Engineering, University of California, Los Angeles, CA, USA
E-mail: luucla@ucla.edu

Abstract

TiO₂/(ZnS)_x(CuInS₂)_1−x nanocomposites were prepared from oleic acid-capped TiO₂ nanocrystals and alloyed (ZnS)_x(CuInS₂)_1−x nanocrystals. Element mapping and transmission electron microscopy (TEM) results suggested that the nanocomposites exhibit homogeneous composition with uniform mesoporous structure. High photocatalytic activities driven by simulated solar light were achieved owning to their high surface area and efficient electron transfer from (ZnS)_x(CuInS₂)_1−x to TiO₂. This work enables the synthesis of a large variety of photocatalysts from nanocrystal building blocks for various applications beyond photodegradation of organic pollutants.

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Article information

DOI: https://doi.org/10.1039/C2JM30540B
Article type: Communication
Submitted: 28 Jan 2012
Accepted: 07 Mar 2012
First published: 13 Mar 2012

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J. Mater. Chem., 2012,22, 8759-8763

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Sunlight-driven photodegradation of organic pollutants catalyzed by TiO₂/(ZnS)_x(CuInS₂)_1−x nanocomposites

Y. Lin, F. Zhang, D. Pan, H. Li and Y. Lu, J. Mater. Chem., 2012, 22, 8759 DOI: 10.1039/C2JM30540B

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Journal of Materials Chemistry