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PEG-assisted hydrothermal synthesis of BiOCl with enhanced photocatalytic performance

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Abstract

BiOCl photocatalyst with enhanced photocatalytic performance was prepared by a hydrothermal routine with the assistance of polyethylene glycol 6000 (PEG 6000). The specific surface parameters, the crystal structure, the morphology, the distribution of particle size, the chemical states, and the photo-induced charge separation rate of the photocatalyst prepared (PEG-BiOCl) were characterized by Brunauer–Emmett–Teller method, X-ray diffraction, scanning electron microscopy, particle size analyzer, X-ray photoelectron spectroscopy, and surface photovoltage spectroscopy, respectively. Adding PEG 6000 into the synthesis system greatly changes the specific area parameters of BiOCl, decreases the particle size, and enhances the photo-induced charge separation rate and hydroxyl content. The superoxide radical is the main active species during the photocatalytic process. The photocatalytic activity of PEG-BiOCl for decolorization of methyl orange aqueous solution under both ultraviolet light and simulated solar light irradiation was investigated. The results show that PEG-BiOCl exhibits higher photocatalytic performance than that of the reference BiOCl, and the possible mechanism was discussed.

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Acknowledgments

This project was supported financially by the Research Fund Projects of Sichuan University of Science and Engineering (No. 2013PY03).

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Authors and Affiliations

  1. Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan, College of Chemistry and Pharmaceutical Engineering, Sichuan University of Science and Engineering, Zigong, 643000, People’s Republic of China

    Xinlu Liu, Junbo Zhong, Jianzhang Li, Shengtian Huang & Wei Song

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  1. Xinlu Liu
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  2. Junbo Zhong
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  3. Jianzhang Li
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  5. Wei Song
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Correspondence to Junbo Zhong.

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Liu, X., Zhong, J., Li, J. et al. PEG-assisted hydrothermal synthesis of BiOCl with enhanced photocatalytic performance. Appl. Phys. A 119, 1203–1208 (2015). https://doi.org/10.1007/s00339-015-9181-5

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  • DOI: https://doi.org/10.1007/s00339-015-9181-5

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