Fabrication of Bi2Sn2O7-ZnO heterostructures with enhanced photocatalytic activity

Yonglei Xing; Wenxiu Que; Xingtian Yin; Xiaobin Liu; H. M. Asif Javed; Yawei Yang; Ling Bing Kong

doi:10.1039/C4RA16616G

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Fabrication of Bi₂Sn₂O₇-ZnO heterostructures with enhanced photocatalytic activity†

Yonglei Xing,^a Wenxiu Que,*^a Xingtian Yin,^a Xiaobin Liu,^a H. M. Asif Javed,^a Yawei Yang^a and Ling Bing Kong*^b

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* Corresponding authors

^a Electronic Materials Research Laboratory, International Center for Dielectric Research, Key Laboratory of the Ministry of Education, School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, P.R. China
E-mail: wxque@mail.xjtu.edu.cn
Fax: +86-29-82668794
Tel: +86-29-82668679

^b School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
E-mail: elbkong@ntu.edu.sg

Abstract

ZnO microspheres synthesized by a hydrolysis method were sensitized with Bi₂Sn₂O₇ (BSO) nanoparticles prepared using a hydrothermal method at different concentrations. Various characterization methods were employed to study the microstructural, morphological, optical and photocatalytic properties of the BSO-ZnO heterostructures. The effect of the BSO concentration on the photocatalytic activity of the as-prepared samples was also investigated. The 12.5BSO-ZnO sample exhibits the highest photocatalytic efficiency. The enhanced photocatalytic efficiency is ascribed to an effective separation of the photogenerated electrons and holes due to the presence of the BSO-ZnO heterojunction.

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Article information

DOI: https://doi.org/10.1039/C4RA16616G
Article type: Paper
Submitted: 18 Dec 2014
Accepted: 09 Mar 2015
First published: 09 Mar 2015

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RSC Adv., 2015,5, 27576-27583

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Fabrication of Bi₂Sn₂O₇-ZnO heterostructures with enhanced photocatalytic activity

Y. Xing, W. Que, X. Yin, X. Liu, H. M. A. Javed, Y. Yang and L. B. Kong, RSC Adv., 2015, 5, 27576 DOI: 10.1039/C4RA16616G

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