Preparation and property of magnetic photocatalyst BiOCl/Mn x Zn1−x Fe2O4
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- 作者：Shan Feng ; Longjun Xu ; Chenglun Liu ; Haigang Du…
- 关键词：Magnetic photocatalyst ; Bismuth oxychloride ; Impregnation ; calcination ; Flower ; like microsphere ; Photocatalytic activity ; Nanosheets
- 刊名：Journal of Nanoparticle Research
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：19
- 期：2
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Nanotechnology; Inorganic Chemistry; Characterization and Evaluation of Materials; Physical Chemistry; Optics, Lasers, Photonics, Optical Devices;
- 出版者：Springer Netherlands
- ISSN：1572-896X
- 卷排序：19
文摘
The magnetic photocatalyst BiOCl/MnxZn1−xFe2O4 was prepared by impregnation-calcination method. The structure and properties of the prepared photocatalyst were characterized by FTIR, XRD, SEM, TEM, UV–vis DRS, and VSM. MnxZn1−xFe2O4 inhibited the growth along (001) crystal face and promoted (110) crystal surface exposure of BiOCl. The as-prepared magnetic composite appeared flower-like microspheres assembled with nanosheets. The average crystallite size and the nanosheet thickness range of BiOCl/MnxZn1−xFe2O4 were 57.6 and 75.7–112.2 nm, respectively. The band gap energy (Eg) of BiOCl/MnxZn1−xFe2O4 was 2.48 eV, which was lower than that of BiOCl. The saturation magnetization (Ms), coercive force (Hc), and remanent magnetization (Mr) of BiOCl/MnxZn1−xFe2O4 were respectively 4.64 emu g−1, 50.12 G and 0.09 emu g−1, indicating a good resistance to demagnetization and paramagnetism. The optimum synthesis condition of BiOCl/MnxZn1−xFe2O4 was obtained by orthogonal experiments, and the degradation ratio of RhB with the photocatalyst was 99.6% at 30 min. After four cycles, the degradation ratio of RhB with the recovered photocatalyst was still above 83%.
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