Synergetic activation of peroxymonosulfate by Co3O4 modified g-C3N4 for enhanced degradation of diclofenac sodium under visible light irradiation
文献类型：期刊论文
| 作者 | Mao, Ran; Wang, Yanbin; Shao, Huixin; Zhao, Xu; Zhu, Yongfa; Zhao, Shen; Qiao, Meng; Wang, Yan |
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2017-12-05 |
| 卷号 | 218期号:0页码:810-818 |
| 关键词 | Photocatalysis Peroxymonosulfate G-c3n4 Co3o4 Diclofenac Sodium |
| 英文摘要 | Co3O4 nanoparticles modified g-C3N4 composites (Co3O4-g-C3N4) were prepared and used as a visible light responsive photocatalyst for the removal of diclofenac sodium (DCF). The Co3O4-g-C3N4 with 0.20% Co3O4 loading exhibited the highest photocatalytic activity towards DCF degradation among the various Co3O4 loading. In the presence of peroxymonosulfate (PMS), the removal efficiency of DCF with an initial concentration of 10 mg/L was greatly increased from 20% to 100% within 30 min and the first order-kinetic constant was increased from 0.00469 to 0.08403 min(-1). Influencing factors including DCF concentrations, PMS concentrations, and initial pH values were investigated in details. Low pH value was favorable to DCF degradation. Reactive oxygen species generated in the photocatalytic process were identified by radical quenching tests and electron spin response. It was proposed that both sulfate and hydroxyl radicals contributed to the degradation of DCF. PMS could be activated by photogenerated electrons from the Co3O4-g-C3N4 hybrids under visible light, as well as the Co3O4 itself to generate sulfate radicals jointly. Hydroxyl radicals were generated from the reaction between sulfate radicals and H2O/OH-. As a result, DCF was efficiently degraded. (C) 2017 Published by Elsevier B.V. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39736]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Mao, Ran,Wang, Yanbin,Shao, Huixin,et al. Synergetic activation of peroxymonosulfate by Co3O4 modified g-C3N4 for enhanced degradation of diclofenac sodium under visible light irradiation[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2017,218(0):810-818. |
| APA | Mao, Ran.,Wang, Yanbin.,Shao, Huixin.,Zhao, Xu.,Zhu, Yongfa.,...&Wang, Yan.(2017).Synergetic activation of peroxymonosulfate by Co3O4 modified g-C3N4 for enhanced degradation of diclofenac sodium under visible light irradiation.APPLIED CATALYSIS B-ENVIRONMENTAL,218(0),810-818. |
| MLA | Mao, Ran,et al."Synergetic activation of peroxymonosulfate by Co3O4 modified g-C3N4 for enhanced degradation of diclofenac sodium under visible light irradiation".APPLIED CATALYSIS B-ENVIRONMENTAL 218.0(2017):810-818. |
入库方式： OAI收割
来源：生态环境研究中心
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