Light-Induced Efficient Molecular Oxygen Activation on a Cu(II)-Grafted TiO2/Graphene Photocatalyst for Phenol Degradation
文献类型：期刊论文
| 作者 | Zhang, Hui; Guo, Liang-Hong; Wang, Dabin; Zhao, Lixia; Wan, Bin |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2015-01-28 |
| 卷号 | 7期号:3页码:1816-1823 |
| 关键词 | TiO2 photocatalysis oxygen reduction phenol degradation |
| 英文摘要 | An efficient photocatalytic process involves two closely related steps: charge separation and the subsequent surface redox reaction. Herein, a ternary hybrid photocatalytic system was designed and fabricated by anchoring Cu(II) clusters onto a TiO2/reduced graphene oxide (RGO) composite. Microscopic and spectroscopic characterization revealed that both TiO2 nanoparticles and Cu(II) clusters were highly dispersed on a graphene sheet with intimate interfacial contact. Compared with pristine TiO2, the TiO2/RGO/Cu(II) composite yielded an almost 3-fold enhancement in the photodegradation rate toward phenol degradation under UV irradiation. Electron spin resonance (ESR) spectra and electrochemical measurements demonstrated that the improved photocatalytic activity of this ternary system benefitted from the synergetic effect between RGO and Cu(II), which facilitates the interfacial charge transfer and simultaneously achieves in situ generation of H2O2 via two-electron reduction of O-2. These results highlight the importance to harmonize the charge separation and surface reaction process in achieving high photocatalytic efficiency for practical application. |
| 研究领域[WOS] | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| WOS记录号 | WOS:000348688700053 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32613]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhang, Hui,Guo, Liang-Hong,Wang, Dabin,et al. Light-Induced Efficient Molecular Oxygen Activation on a Cu(II)-Grafted TiO2/Graphene Photocatalyst for Phenol Degradation[J]. ACS APPLIED MATERIALS & INTERFACES,2015,7(3):1816-1823. |
| APA | Zhang, Hui,Guo, Liang-Hong,Wang, Dabin,Zhao, Lixia,&Wan, Bin.(2015).Light-Induced Efficient Molecular Oxygen Activation on a Cu(II)-Grafted TiO2/Graphene Photocatalyst for Phenol Degradation.ACS APPLIED MATERIALS & INTERFACES,7(3),1816-1823. |
| MLA | Zhang, Hui,et al."Light-Induced Efficient Molecular Oxygen Activation on a Cu(II)-Grafted TiO2/Graphene Photocatalyst for Phenol Degradation".ACS APPLIED MATERIALS & INTERFACES 7.3(2015):1816-1823. |
入库方式： OAI收割
来源：生态环境研究中心
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