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Preparation and enhanced visible-light photocatalytic H2-production activity of CdS quantum dots-sensitized Zn1−xCdxS solid solution
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.
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Metadata
- Authors
- Yu, J., Zhang, J., & Jaroniec, M.
- Venue
- Green Chemistry
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2010
- Volume
- 12
- Issue
- 9
- Pages
- 1611
- ISSN
- 1463-9262 (ISSN-L)
- 1463-9270
- OpenAlex
- W2083209567
- Cited by
- 336
- References
- 0
- FWCI
- 14.97
- Type
- journal article
- Language
- en
- Open access
- closed
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- Yu, J., Zhang, J., & Jaroniec, M. (2010). Preparation and enhanced visible-light photocatalytic H2-production activity of CdS quantum dots-sensitized Zn1−xCdxS solid solution. Green Chemistry. https://doi.org/10.1039/c0gc00236d
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