Visible-light-driven photocatalytic H-2 evolution from aqueous suspensions of perylene diimide dye-sensitized Pt/TiO2 catalysts
文献类型：期刊论文
| 作者 | Chen, S (Chen, Shuai); Li, YX (Li, Yingxuan); Wang, CY (Wang, Chuanyi) |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2015 |
| 卷号 | 5期号:21页码:15880-15885 |
| 关键词 | GRAPHENE-BASED PHOTOCATALYSTS HYDROGEN-PRODUCTION WATER TIO2 GENERATION |
| ISSN号 | 2046-2069 |
| 通讯作者 | Wang, Chuanyi |
| 英文摘要 | TiO2 is among the most important semiconductor photocatalysts for solar light-driven H-2 production from photocatalytic water reduction. Commercialized mixed-phase Degussa P25 nanoparticles have been demonstrated as the most popular TiO2. However, its superiority cannot be exerted in the visible-light region. In this work, molecular aggregates of perylene tetracarboxylic diimide ( PTCDI, a kind of air-stable n-type organic semiconductor bearing an electron-rich phenylamino moiety and a dodecyl side-chain) were employed as a sensitizer to combine with Pt/TiO2 nanoparticles via solution processing. The PTCDI/Pt/TiO2 composites thus fabricated exhibit a broad visible-light response and excellent photochemical stability. The initial intramolecular charge transfer of PTCDI and its energy level being well matched to TiO2, ensure effective charge transfer among the PTCDI/Pt/TiO2 composite. When 25 mg of the composite powders are suspended in aqueous solution (100 mL) containing 10 mL of triethanolamine as a sacrificial electron donor, stable H-2 evolution with an activity of similar to 0.075 mu mol h(-1) is achieved under visible-light (lambda >= 420 nm) irradiation. Both intramolecular electron transfer from the electron rich 4-dimethylaminobenzyl group to the perylene core of PTCDI and the intermolecular charge transfer from PTCDI to TiO2 are key to the effective visible-light photoactivity. |
| 收录类别 | SCI |
| WOS记录号 | WOS:000349524700016 |
| 公开日期 | 2015-03-11 |
| 源URL | [http://ir.xjipc.cas.cn/handle/365002/4210]  |
| 专题 | 新疆理化技术研究所_中国科学院特殊环境功能材料与器件重点试验室 |
| 作者单位 | Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Key Lab Funct Mat & Devices Special Environm, Lab Environm Sci & Technol, Urumqi 830011, Peoples R China;Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, S ,Li, YX ,Wang, CY . Visible-light-driven photocatalytic H-2 evolution from aqueous suspensions of perylene diimide dye-sensitized Pt/TiO2 catalysts[J]. RSC ADVANCES,2015,5(21):15880-15885. |
| APA | Chen, S ,Li, YX ,&Wang, CY .(2015).Visible-light-driven photocatalytic H-2 evolution from aqueous suspensions of perylene diimide dye-sensitized Pt/TiO2 catalysts.RSC ADVANCES,5(21),15880-15885. |
| MLA | Chen, S ,et al."Visible-light-driven photocatalytic H-2 evolution from aqueous suspensions of perylene diimide dye-sensitized Pt/TiO2 catalysts".RSC ADVANCES 5.21(2015):15880-15885. |
入库方式： OAI收割
来源：新疆理化技术研究所
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