| Enhancement of photocatalytic activity of cadmium sulfide for hydrogen evolution by photoetching | |
| Department | 羰基合成与选择氧化国家重点实验室 ; 精细石油化工中间体国家工程研究中心 |
Li YX(李越湘); Du J(杜娟); Peng SQ(彭绍琴); Xie D(谢丹); Lv GX(吕功煊) ; Li SB(李树本)
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| 2008 | |
| Source Publication | International Journal of Hydrogen Energy
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| ISSN | 0360-3199 |
| Volume | 33Pages:2007-2013 |
| Abstract | CdS semiconductor photocatalyst was synthesized by a solvent thermal process. Platinum (Pt) was loaded on the CdS by photodeposition. The samples were characterized by XRD, BET, TEM, DRS and XPS techniques. The activities of Pt/CdS photocatalysts under visible light were evaluated by hydrogen production using formic acid as electron donor. The photoetching of CdS was monitored by measuring dissolved Cd2þ. The activity of Pt/CdS with 1 h photoetching treatment increases by 126% compared to the initial photocatalyst. However, excess photoetching decreases the photocatalytic activity. A distinct correlation between photoetching and increase of the activity is observed. Oxygen and platinum play an important role in the photoetching process. The photocatalytic activity is enhanced through decreasing agglomeration of the CdS particles to increase the specific surface area, modifying particle morphology, and removing selectively grain boundary defects which are recombination centers of photoinduced electron–hole pairs. |
| Keyword | Photocatalysis Pt/cds Hydrogen Photoetching Defects |
| Subject Area | 物理化学 |
| Funding Organization | National Basic Research Program of China (2003CB214503);the National Nature Science Foundation of China (No. 20763006);the Nature Science Foundation of the Jiangxi Province (No. 0620047) |
| Indexed By | SCI |
| 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 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/1879 |
| 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) |
| Recommended Citation GB/T 7714 | Li YX,Du J,Peng SQ,et al. Enhancement of photocatalytic activity of cadmium sulfide for hydrogen evolution by photoetching[J]. International Journal of Hydrogen Energy,2008,33:2007-2013. |
| APA | 李越湘,杜娟,彭绍琴,谢丹,吕功煊,&李树本.(2008).Enhancement of photocatalytic activity of cadmium sulfide for hydrogen evolution by photoetching.International Journal of Hydrogen Energy,33,2007-2013. |
| MLA | 李越湘,et al."Enhancement of photocatalytic activity of cadmium sulfide for hydrogen evolution by photoetching".International Journal of Hydrogen Energy 33(2008):2007-2013. |
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| 26_Int.J.Hydrog.Ener（756KB） | 开放获取 | License | View Application Full Text | |||
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