Issue 43, 2013
From the journal:

RSC Advances

The study on properties of CdS photocatalyst with different ratios of zinc-blende and wurtzite structure

Qianqian Shen,ab   Jinbo Xue,ab   Amin Mi,ab   Husheng Jia,*ab   Xuguang Liuac  and  Bingshe Xuab  

* Corresponding authors

a College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P.R. China
E-mail: sqq0016@link.tyut.edu.cn
Fax: +86 351 6014138
Tel: +86 351 6014138

b Key Laboratory of Interface Science and Engineering in Advanced Materials (Taiyuan University of Technology), Ministry of Education, Taiyuan 030024, P.R. China

c College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P.R. China

Abstract

The mixtures of zinc blende and wurtzite CdS nanoparticles were prepared via a solvothermal method by controlling the precursor ratio (Cd/S molar ratio). The as-prepared samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM) and ultraviolet-visible (UV-vis) spectroscopy. These results demonstrate that not only the morphology but also the phase composition of CdS nanostructures was sensitively altered by the precursor ratio (Cd/S molar ratio). Photocatalysis test results show that the photocatalytic activity was mainly dependent on the ratio between zinc blende and wurtzite phases in CdS samples. The product prepared with 1 : 2 Cd/S molar ratio exhibited higher photocatalytic activities in comparison with products prepared with other Cd/S molar ratios, which can be attributed to the improved charge separation at the zinc blende/wurtzite junction interface.

Graphical abstract: The study on properties of CdS photocatalyst with different ratios of zinc-blende and wurtzite structure

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Article information

DOI
https://doi.org/10.1039/C3RA42179A
Article type
Paper
Submitted
02 May 2013
Accepted
02 Sep 2013
First published
02 Sep 2013

RSC Adv., 2013,3, 20930-20935

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The study on properties of CdS photocatalyst with different ratios of zinc-blende and wurtzite structure

Q. Shen, J. Xue, A. Mi, H. Jia, X. Liu and B. Xu, RSC Adv., 2013, 3, 20930 DOI: 10.1039/C3RA42179A

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