| Bi/BiOCOOH复合光催化剂的制备及其可见光催化性能 |
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| 引用本文： | 丁志刚,舒友菊,段芳,陈明清.Bi/BiOCOOH复合光催化剂的制备及其可见光催化性能[J].重庆大学学报(自然科学版),2018,41(10):53-60. |
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| 作者姓名： | 丁志刚 舒友菊 段芳 陈明清 |
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| 作者单位： | 江南大学化学与材料工程学院;筑波大学;洛阳理工学院环境工程与化学学院 |
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| 基金项目： | 国家自然科学基金资助项目（51302108）；中国博士后科学基金资助项目（2017M611694）。 |
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| 摘 要： | 采用溶剂热法制备出BiOCOOH,利用NaBH4水溶液为还原剂,原位还原制备了Bi/BiOCOOH复合光催化剂。通过XRD、FESEM、TEM、DRS和PL等测试手段对光催化剂的物相、形貌和光学性质等进行表征。以罗丹明B为模型污染物,考察了NaBH4用量对Bi/BiOCOOH复合光催化剂性能的影响。结果表明:当NaBH4的用量为25mg时,由于单质Bi的SPR效应使得光生电子和空穴的复合率降低,增强了光催化剂对可见光的吸收,从而显著提高其可见光催化性能,可在50min内,完全降解罗丹明B。
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| 关 键 词： | 复合材料 Bi/BiOCOOH 光催化 可见光 |
| 收稿时间： | 2018/5/2 0:00:00 |
The preparation and visible light photocatalytic activity of Bi/BiOCOOH composite photocatalyst |
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| DING Zhigang,SHU Youju,DUAN Fang and CHEN Mingqing.The preparation and visible light photocatalytic activity of Bi/BiOCOOH composite photocatalyst[J].Journal of Chongqing University(Natural Science Edition),2018,41(10):53-60. |
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| Authors: | DING Zhigang SHU Youju DUAN Fang and CHEN Mingqing |
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| Institution: | School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu, P. R. China,Graduate School of Life and Environmental Science, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-502, Japan;School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang 471003, Henan, P. R. China,School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu, P. R. China and School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu, P. R. China |
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| Abstract: | BiOCOOH was prepared by solvothermal method, and the Bi/BiOCOOH composite photocatalyst was synthesized by in-situ reduction of BiOCOOH with NaBH4 aqueous solution as reducing agent. The structure, morphology and optical properties of the prepared photocatalyst were characterized by XRD, FESEM, TEM, DRS and PL. The photocatalytic activity of Bi/BiOOCOOH composite photocatalyst was determined by the degradation of Rhodamine B. The influence of NaBH4 dosage was investigated. The results indicate that the Rhodamine B can be thoroughly degraded in 50 min when the dosage of NaBH4 is 25 mg. This can be ascribed to the SPR effect of Bi, which reduces the recombination rate of photogenerated electrons and holes and enhances the absorption of visible light. |
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| Keywords: | composite Bi/BiOCOOH photoctalytic visible-light |
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