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Journal of Materials Science
Erschienen in: Journal of Materials Science 4/2017

20.10.2016 | Original Paper

Synthesizing Bi2O3/BiOCl heterojunctions by partial conversion of BiOCl

verfasst von: Qihang Zhao, Xiaoyan Liu, Yongxing Xing, Zhiliang Liu, Chunfang Du

Erschienen in: Journal of Materials Science | Ausgabe 4/2017

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Abstract

In this work, uniform BiOCl microspheres were used as self-sacrificed template to construct Bi2O3/BiOCl heterojunctions by a simple alkaline treatment method. Details of structure and chemical properties were carefully characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy (TEM), high-resolution TEM, X-ray photoelectron spectroscopy, UV–vis diffuse reflectance spectroscopy, and Brunauer–Emmett–Teller techniques. The results indicated that BiOCl microspheres composed of numerous nanosheets transformed to rod-like Bi2O3 nanostructures during the alkaline treatment, which resulted in strong visible-light absorption. The as-obtained Bi2O3/BiOCl heterojunctions exhibited remarkably enhanced photocatalytic performance for the degradation of methyl orange (MO) under visible-light irradiation, which was ~1.2 and 2.5 times as that of pure BiOCl and Bi2O3, respectively. The formation of Bi2O3/BiOCl heterojunctions facilitated the transfer and separation of photogenerated charge carriers which was further confirmed by the photocurrent measurement and photoluminescence spectra results. The finding reported here offers a valid in situ route for constructing heterojunction photocatalysts to effectively decompose the organic pollutants in aqueous solution.
Vorheriger Artikel Residual stress evaluation in friction stir-welded aluminum plates using finite element method and acoustic emission
Nächster Artikel Graphene-modified copper chromate as the anode of ultrafast rechargeable Li-ion batteries

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Metadaten
Titel
Synthesizing Bi2O3/BiOCl heterojunctions by partial conversion of BiOCl
verfasst von
Qihang Zhao
Xiaoyan Liu
Yongxing Xing
Zhiliang Liu
Chunfang Du
Publikationsdatum
20.10.2016
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 4/2017
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-016-0499-y

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