| Photosensitization of SiW11O398--modified TiO2 by Eosin Y for stable visible-light H-2 generation | |
| Department | OSSO国家重点实验室 |
Liu X(刘兴)1; Li YX(李越湘)1; Peng SQ(彭绍琴)1; Lu GX(吕功煊)2 ; Li SB(李树本)2; Li YX(李越湘)
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| The second department | erc国家工程研究中心 |
| 2013 | |
| Source Publication | International Journal of Hydrogen Energy
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| ISSN | 0360-3199 |
| Volume | 38Issue:27Pages:11709-11719 |
| Abstract | Stability issue of dye limits greatly applications of sensitization systems. In the present work, TiO2 was modified with a lacunary Keggin-type polyoxometalate SiW11O398_ (SiW11). SiW11 is bound at TiO2 by a chemical interaction and its modification promotes TiO2 crystallization as well as growth of the particles. The as-prepared SiW11/TiO2 was used to construct a stable and efficient system for visible-light H2 generation using Eosin Y (EY) as a photosensitizer and Pt as a co-catalyst. SiW11 plays a very important role in enhancement of the sensitization activity and stability of SiW11/TiO2. SiW11 as an excellent electron relay greatly facilitates the electron transfer from the reduced dye species EY__ to conduction band (CB) of TiO2 and suppresses the decomposition of EY__. Thus, a stable dye-sensitized hydrogen generation system is achieved. The factors which influenced the photocatalytic hydrogen evolution such as concentration of SiW11, concentration of EY, and Pt loading content were investigated. Under the optimal conditions, an average apparent quantum yield of 11.4% was obtained during 20 h irradiation (λ > 420 nm). The possible mechanism was discussed. |
| Keyword | Siw11o398-/tio2 Eosin y Photosensitization H2 Generation Stability |
| Subject Area | 物理化学与绿色催化 |
| DOI | 10.1016/j.ijhydene.2013.06.095 |
| Funding Organization | the National Nature Science Foundation of China (21163012);the National Basic Research Program of China (2009CB220003);the Innovation Fund for Graduate Student of Nanchang University (cx2011007) |
| Indexed By | SCI |
| If | 2.930 |
| Language | 英语 |
| Funding Project | 环境催化与清洁能源研究组;环境催化与氢能源研究组 |
| compositor | 第二作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/4930 |
| Collection | 羰基合成与选择氧化国家重点实验室（OSSO） 精细石油化工中间体国家工程研究中心（ERC） |
| Corresponding Author | Li YX(李越湘) |
| Affiliation | 1.Nanchang Univ, Dept Chem, Nanchang 330031, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China |
| Recommended Citation GB/T 7714 | Liu X,Li YX,Peng SQ,et al. Photosensitization of SiW11O398--modified TiO2 by Eosin Y for stable visible-light H-2 generation[J]. International Journal of Hydrogen Energy,2013,38(27):11709-11719. |
| APA | Liu X,Li YX,Peng SQ,Lu GX,Li SB,&李越湘.(2013).Photosensitization of SiW11O398--modified TiO2 by Eosin Y for stable visible-light H-2 generation.International Journal of Hydrogen Energy,38(27),11709-11719. |
| MLA | Liu X,et al."Photosensitization of SiW11O398--modified TiO2 by Eosin Y for stable visible-light H-2 generation".International Journal of Hydrogen Energy 38.27(2013):11709-11719. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2013,38(27),11709-11（1843KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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