| 论文编号: | |
| 论文题目: | Photocatalytical degradation of diclofenac by Ag-BiOI-rGO: Kinetics, mechanisms and pathways |
| 英文论文题目: | Photocatalytical degradation of diclofenac by Ag-BiOI-rGO: Kinetics, mechanisms and pathways |
| 第一作者: | Li, W. F. |
| 英文第一作者: | Li, W. F. |
| 联系作者: | 于泳 |
| 英文联系作者: | Yu Yong |
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| 发表年度: | 2019 |
| 卷: | 218 |
| 期: | |
| 页码: | 966-973 |
| 摘要: | A novel ternarynanocompositephotocatalyst, Ag-BiOI- reduced graphene oxide (rGO), driven by visible light was successfully synthesized with hydrothermal strategy. XRD,SEM, TEM, HRTEM, EDS,raman spectroscopy,XPS, DRS, photocurrent and EIS analysis were employed to characterize all synthesized compounds. Compared to pure BiOI, Ag-BiOI and BiOI-rGO, the 5？mol% Ag-BiOI-rGO 5？wt% displayed superior photocatalytic capability with complete removal of diclofenac (10.0？μg？mL？1) in 80？min under visible light. Thecharacterizationresults indicated that the addition of Ag and rGO enhanced thecharge separationand suppressed therecombinationof photogenerated electrons and holes, which upgraded the ability of Ag-BiOI-rGO to degrade diclofenac compared with BiOI. Sixreaction intermediatesof diclofenac were detected by LC-MS/MS, subsequently, two degradation routes were proposed. This work provides a promising strategy to fabricate more effective photocatalysts to deal with organic pollutants in wastewater. |
| 英文摘要: | A novel ternarynanocompositephotocatalyst, Ag-BiOI- reduced graphene oxide (rGO), driven by visible light was successfully synthesized with hydrothermal strategy. XRD,SEM, TEM, HRTEM, EDS,raman spectroscopy,XPS, DRS, photocurrent and EIS analysis were employed to characterize all synthesized compounds. Compared to pure BiOI, Ag-BiOI and BiOI-rGO, the 5？mol% Ag-BiOI-rGO 5？wt% displayed superior photocatalytic capability with complete removal of diclofenac (10.0？μg？mL？1) in 80？min under visible light. Thecharacterizationresults indicated that the addition of Ag and rGO enhanced thecharge separationand suppressed therecombinationof photogenerated electrons and holes, which upgraded the ability of Ag-BiOI-rGO to degrade diclofenac compared with BiOI. Sixreaction intermediatesof diclofenac were detected by LC-MS/MS, subsequently, two degradation routes were proposed. This work provides a promising strategy to fabricate more effective photocatalysts to deal with organic pollutants in wastewater. |
| 刊物名称: | Chemosphere |
| 英文刊物名称: | Chemosphere |
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| 参与作者: | W. F. Li, R. Yu, M. Li, N. Guo, H. W. Yu and Y. Yu |
| 英文参与作者: | W. F. Li, R. Yu, M. Li, N. Guo, H. W. Yu and Y. Yu |
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Photocatalytical degradation of diclofenac by Ag-BiOI-rGO: Kinetics, mechanisms and pathways
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