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Preparation and enhanced visible-light photocatalytic H2-production activity of CdS quantum dots-sensitized Zn1−xCdxS solid solution
| Content Provider | Semantic Scholar |
|---|---|
| Author | Yu, Jiaguo Zhang, Jun Jaroniec, Mietek |
| Copyright Year | 2010 |
| Abstract | CdS quantum dot (QDs)-sensitized Zn1−xCdxS solid solutions were successfully prepared by a simple cation exchange using hydrothermally synthesized ZnS nanoparticles (NPs) and Cd(NO3)2 as precursors. The prepared samples show especially high visible-light photocatalytic H2-production activity from aqueous solutions containing Na2SO3 and Na2S as sacrificial reagents even without a Pt co-catalyst. It was found that this high visible-light photocatalytic H2-production activity is attributed to the quantum size effect of CdS; the presence of CdS QDs alters the energy levels of the conduction and valence bands in the coupled semiconductor system, which favors the electron transfer and enhances photoactivity. |
| Starting Page | 1611 |
| Ending Page | 1614 |
| Page Count | 4 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C0GC00236D |
| Volume Number | 12 |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/GC/c0/c0gc00236d/c0gc00236d.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/C0GC00236D |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |