| 论文编号: | |
| 论文题目: | Synthesis of Ag/BiVO4/rGO composite with enhanced photocatalytic degradation of triclosan |
| 英文论文题目: | Synthesis of Ag/BiVO4/rGO composite with enhanced photocatalytic degradation of triclosan |
| 第一作者: | Li, M. |
| 英文第一作者: | Li, M. |
| 联系作者: | 于泳 |
| 英文联系作者: | Yu Yong |
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| 发表年度: | 2019 |
| 卷: | 664 |
| 期: | |
| 页码: | 230-239 |
| 摘要: | A ternary visible-light driven photocatalyst, Ag/BiVO4/reduced graphene oxide (rGO) composite was manufactured by hydrothermal strategy. The optimized products were characterized by XRD,SEM, HRTEM, EDS,XPS, DRS,Raman spectra, PL, BET, photocurrent density and EIS analysis. Compared to pure BiVO4, the fabricated ternary composite showed enhanced photocatalytic ability to decomposepollutantunder visible light. Triclosan was completely removed after 100？min in solution with 1？mg/mL photocatalyst under visible light irradiation. Repeated cycle tests demonstrated the photo-stability and reusability of composite to decompose triclosan, indicating that this material could be utilized repeatedly. The upgraded photocatalytic ability was attributed to the addition of Ag and rGO, which enhanced thecharge separationand inhibited therecombinationof photogenerated electrons and holes. TheEPRspin-trap technique (with DMPO) was performed to identify the radicals produced in Ag/BiVO4/rGO under the visible light, and trapping experiments were conducted to determine the main active species in the photocatalytic process of decomposing triclosan. Finally, sevenreaction intermediatesof triclosan were detected by LC-MS/MS and possible degradation routes were proposed. |
| 英文摘要: | A ternary visible-light driven photocatalyst, Ag/BiVO4/reduced graphene oxide (rGO) composite was manufactured by hydrothermal strategy. The optimized products were characterized by XRD,SEM, HRTEM, EDS,XPS, DRS,Raman spectra, PL, BET, photocurrent density and EIS analysis. Compared to pure BiVO4, the fabricated ternary composite showed enhanced photocatalytic ability to decomposepollutantunder visible light. Triclosan was completely removed after 100？min in solution with 1？mg/mL photocatalyst under visible light irradiation. Repeated cycle tests demonstrated the photo-stability and reusability of composite to decompose triclosan, indicating that this material could be utilized repeatedly. The upgraded photocatalytic ability was attributed to the addition of Ag and rGO, which enhanced thecharge separationand inhibited therecombinationof photogenerated electrons and holes. TheEPRspin-trap technique (with DMPO) was performed to identify the radicals produced in Ag/BiVO4/rGO under the visible light, and trapping experiments were conducted to determine the main active species in the photocatalytic process of decomposing triclosan. Finally, sevenreaction intermediatesof triclosan were detected by LC-MS/MS and possible degradation routes were proposed. |
| 刊物名称: | Science of the Total Environment |
| 英文刊物名称: | Science of the Total Environment |
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| 参与作者: | M. Li, G. H. Xu, Z. Y. Guan, Y. Wang, H. W. Yu and Y. Yu |
| 英文参与作者: | M. Li, G. H. Xu, Z. Y. Guan, Y. Wang, H. W. Yu and Y. Yu |
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Synthesis of Ag/BiVO4/rGO composite with enhanced photocatalytic degradation of triclosan
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