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Journal of Nanoparticle Research

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01-10-2018 | Research Paper

Magnetically separable Fe₃O₄@C/BiOBr heterojunction for the enhanced visible light-driven photocatalytic performance

Authors: Xiaozhen Ren, Yanhui Sun, Hu Xing, Wenwen Zhao, Dafeng Zhang, Jie Yin, Shujuan Yao, Xipeng Pu, Wenzhi Li

Published in: Journal of Nanoparticle Research | Issue 10/2018

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Abstract

In this study, the magnetically recyclable Fe₃O₄@C/BiOBr heterojunction with enhanced visible light-driven photocatalytic ability was obtained by two-step solvothermal method. The phase, morphology, and structure of the samples were investigated by XRD, FESEM, HRTEM, and XPS. The Fe₃O₄@C/BiOBr heterojunction was composed of Fe₃O₄@C sphere and BiOBr microsphere with diameters of 200 nm and 1000 nm, respectively. The photocatalytic performance of Fe₃O₄@C/BiOBr composite for RhB was examined under visible light irradiation. The photocatalytic activity of Fe₃O₄@C/BiOBr composite was much higher than that of pure BiOBr and Fe₃O₄@C. After 35 min of irradiation, 97% of RhB could be removed with the Fe₃O₄@C/BiOBr photocatalyst. Based on radical trapping experiments of active species, the mechanism of enhanced photocatalytic performance was proposed. In addition, the superparamagnetic property of the photocatalyst not only allows its easy recyclability by an external magnetic field but also maintains high photocatalytic activity after five cyclic experiments.

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Title: Magnetically separable Fe3O4@C/BiOBr heterojunction for the enhanced visible light-driven photocatalytic performance
Authors: Xiaozhen Ren
Yanhui Sun
Hu Xing
Wenwen Zhao
Dafeng Zhang
Jie Yin
Shujuan Yao
Xipeng Pu
Wenzhi Li
Publication date: 01-10-2018
Publisher: Springer Netherlands
Published in: Journal of Nanoparticle Research / Issue 10/2018
Print ISSN: 1388-0764
Electronic ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-018-4357-5

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