Photoelectrocatalytic properties and reactivity of Ti/Au-TiO_2 mesh electrodes
文献类型：期刊论文
| 作者 | Li Xinjun3 ; Li Xiangzhong2; Hou Meifang1; Li Fangbai3
|
| 刊名 | Transactions of Nonferrous Metals Society of China
 |
| 出版日期 | 2002 |
| 卷号 | 12期号:6页码:1180 |
| ISSN号 | 1003-6326 |
| 英文摘要 | A kind of photoelectrode was innovated by anodising titanium mesh in H2SO4 solution and photo-reduced in HAuCl4 solution and named Ti/Au-TiO2 mesh electrode. The structural and surface morphology of the Ti/Au-TiO2 mesh was examined by X-ray diffraction, laser Raman spectra, scanning electronic microseopy(SEM) and X-ray photoelectron spectroscopy respectively. The results indicate that its crystal structure, morphology and the size of pore are affected greatly by gold deposition. XPS measurement shows that the valence band of Ti/TiO2 has two peaks: a wide one at 4.97 eV and a narrow one at 6.61 eV, which correspond mainly to pi(nonbonding) and a (bonding) 0 2p orbitals. The emission intensity of 0 2p orbitals becomes stronger and the width of the valence band increases with the increase of Au content. And the emission of nonbonding shifts toward lower binding energy and that of bonding 0 2p orbitals shifts toward higher binding energy. The photoelectrocatalytic(PEC) oxidation of humic acid(HA) was investigated in terms of TOC. The PEC oxidation efficiency of Ti/Au-TiO2 mesh with optimal content of gold is higher than that of Ti/TiO2 mesh. It is suggested that the recombination of electrons and holes is hindered owing to gold deposition. The investigation shows that PEC oxidation is a convenient way to mineralize organic matter for water treatment. |
| 语种 | 英语 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/21583]  |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | 1.Pollution Integrated Control,Guangdong Institute of Eco-Environment and Soil Science 2.Department of Civil and Structural Engineering, Hong Kong Polytechnic University,Kowloon 3.中国科学院广州能源研究所 |
| 推荐引用方式 GB/T 7714 | Li Xinjun,Li Xiangzhong,Hou Meifang,et al. Photoelectrocatalytic properties and reactivity of Ti/Au-TiO_2 mesh electrodes[J]. Transactions of Nonferrous Metals Society of China,2002,12(6):1180. |
| APA | Li Xinjun,Li Xiangzhong,Hou Meifang,&Li Fangbai.(2002).Photoelectrocatalytic properties and reactivity of Ti/Au-TiO_2 mesh electrodes.Transactions of Nonferrous Metals Society of China,12(6),1180. |
| MLA | Li Xinjun,et al."Photoelectrocatalytic properties and reactivity of Ti/Au-TiO_2 mesh electrodes".Transactions of Nonferrous Metals Society of China 12.6(2002):1180. |
入库方式： OAI收割
来源：广州能源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。