The long-term photocatalytic stability of Co2+-modified P25-TiO2 powders for the H2 production from aqueous ethanol solution
文献类型：期刊论文
| 作者 | Lv GX(吕功煊) ; Lv GX(吕功煊); Wu YQ(吴玉琪); Lv GX(吕功煊); Lv GX(吕功煊); Lv GX(吕功煊); Lv GX(吕功煊)
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| 刊名 | Journal of Photochemistry and Photobiology A: Chemistry
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| 出版日期 | 2006 |
| 卷号 | 181期号:2-3页码:263–267 |
| 关键词 | Photocatalytic reactivity stability Co2+-modified TiO2 Photoelectrochemistry H2 production |
| ISSN号 | 1010-6030 |
| 通讯作者 | 吕功煊 |
| 中文摘要 | In this paper, the long-term stability of photocatalytic activity of Co2+ doped P25-TiO2 nanoparticles for hydrogen production from aqueous ethanol solution is discussed using a photoelectrochemical method in detail. It was found that after a long-term photoreaction, the photocatalytic activity of Co2+ ion modified P25-TiO2 photocatalyst for hydrogen production has decreased by a factor of ca. 50%, and still was very high compared to that of pure P25-TiO2 photocatalyst. And the steady anodic photocurrent appeared to have an obvious decrease after photoreaction (from 2.75×10−4 to 1.5×10−4 A), but the character of photocurrent response was still similar to photoreaction before. Moreover, the most important reason for the decrease of photocatalytic activity is the removal of CoOx active species (x > 1) from the surface of TiO2 photocatalyst after a long-term photoreaction. In addition, a new CoOx intermediate species (x < 1, photooxidative potential at −0.36V versus SCE) emerged on the surface of TiO2 photocatalyst during photoreaction. |
| 收录类别 | SCI |
| 资助信息 | the Nation Natural Science Foundation of China (Project number, 90210027);the China Nation Key Basic Research Special Funds (Project numbers, 2003CB214500;G200000264) |
| 语种 | 英语 |
| 公开日期 | 2013-12-05 |
| 源URL | [http://210.77.64.217/handle/362003/4454]  |
| 专题 | 兰州化学物理研究所_OSSO国家重点实验室 兰州化学物理研究所_ERC国家工程研究中心 |
| 通讯作者 | Lv GX(吕功煊); Lv GX(吕功煊); Lv GX(吕功煊); Lv GX(吕功煊); Lv GX(吕功煊) |
| 推荐引用方式 GB/T 7714 | Lv GX,Lv GX,Wu YQ,et al. The long-term photocatalytic stability of Co2+-modified P25-TiO2 powders for the H2 production from aqueous ethanol solution[J]. Journal of Photochemistry and Photobiology A: Chemistry,2006,181(2-3):263–267. |
| APA | 吕功煊.,吕功煊.,Wu YQ.,吕功煊.,吕功煊.,...&吕功煊.(2006).The long-term photocatalytic stability of Co2+-modified P25-TiO2 powders for the H2 production from aqueous ethanol solution.Journal of Photochemistry and Photobiology A: Chemistry,181(2-3),263–267. |
| MLA | 吕功煊,et al."The long-term photocatalytic stability of Co2+-modified P25-TiO2 powders for the H2 production from aqueous ethanol solution".Journal of Photochemistry and Photobiology A: Chemistry 181.2-3(2006):263–267. |
入库方式： OAI收割
来源：兰州化学物理研究所
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