| BiVO_4/MOF复合材料的合成及其光催化性能 |
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| 引用本文： | 翟勃银,陈颖,梁宇宁,李永超,梁宏宝.BiVO_4/MOF复合材料的合成及其光催化性能[J].燃料化学学报,2019,47(4):504-512. |
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| 作者姓名： | 翟勃银 陈颖 梁宇宁 李永超 梁宏宝 |
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| 作者单位： | 1. Key Laboratory of Petroleum and Natural Gas Chemical Industry, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, China;
2. College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, China |
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| 基金项目： | 国家自然科学基金（51146008）资助 |
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| 摘 要： | 通过简单溶剂热法制备了一种新型复合光催化剂BiVO_4/M IL-53(Fe);运用XRD、SEM/EDS、FT-IR、N_2吸附-脱附和UV-vis DRS等手段对其进行表征,并对其光催化降解RhB活性进行了研究,提出了相应的光催化降解RhB的可能机理。结果表明,相较于单一BiVO_4材料,复合催化剂的比表面积增大,且其光催化效率相较于纯BiVO_4和MIL-53(Fe)也有了较大的提高;其中,BF-2复合材料的光催化活性最高,分别约为纯MIL-53 (Fe)和BiVO_4的5. 2倍和8. 1倍。同时,BiVO_4/MIL-53(Fe)复合光催化剂经过四次循环实验后,仍能保持较稳定的光催化活性和结构。
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| 关 键 词： | BiVO4 MOF 光催化活性 RhB降解 |
| 收稿时间： | 2018-11-12 |
Modifying BiVO4 with metal-organic frameworks for enhanced photocatalytic activity under visible light |
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| ZHAI Bo-yin,CHEN Ying,LIANG Yu-ning,LI Yong-chao,LIANG Hong-bao.Modifying BiVO4 with metal-organic frameworks for enhanced photocatalytic activity under visible light[J].Journal of Fuel Chemistry and Technology,2019,47(4):504-512. |
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| Authors: | ZHAI Bo-yin CHEN Ying LIANG Yu-ning LI Yong-chao LIANG Hong-bao |
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| Abstract: | A new composite photocatalyst, viz., BiVO4/MIL-53(Fe), was prepared through a simple hydrothermal approach and characterized by means of X-ray diffraction, scanning electron microscopy, energy dispersive spectrometry, Fourier transform infrared spectroscopy, N2 absorption-desorption and UV-visual diffuse reflectance spectroscopy. The photocatalytic activity of prepared BiVO4/MIL-53(Fe) catalysts was investigated in the degradation of RhB as a simulated pollutant and a possible reaction mechanism for the photocatalytic degradation of RhB was then proposed. The results indicate that after modifying BiVO4 with metal-organic frameworks (MOFs), the surface area of BiVO4/MIL-53(Fe) is improved greatly; moreover, the BiVO4/MIL-53(Fe) composite also exhibits much higher photocatalytic activity than pristine BiVO4 and MIL-53(Fe). In particular, the photocatalytic activity of BF-2 composite is about 5.2 and 8.1 times higher than those of pure MIL-53 (Fe) and BiVO4, respectively. In addition, BiVO4/MIL-53(Fe) composite photocatalyst is rather stable and can keep its photocatalytic activity and structure after four recycling tests. |
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| Keywords: | BiVO4 metal-organic framework photocatalytic activity RhB degradation |
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