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Type: Journal article
Title: Embedding Au quantum dots in rimous cadmium sulfide nanospheres for enhanced photocatalytic hydrogen evolution
Author: Kuang, P.
Zheng, P.
Liu, Z.
Lei, J.
Wu, H.
Li, N.
Ma, T.
Citation: Small, 2016; 12(48):6735-6744
Publisher: Wiley
Issue Date: 2016
ISSN: 1613-6810
Statement of
Pan-Yong Kuang, Ping-Xuan Zheng, Zhao-Qing Liu, Jin-Long Lei, Hao Wu, Nan Li, and Tian-Yi Ma
Abstract: Rational design and development of new-generation photocatalysts with high hydrogen evolution activity is recognized as an effective strategy to settle energy crisis. To this regard, hybrid photocatalysts of Au quantum dots embedded in rimous cadmium sulfide nanospheres are synthesized by using a simple hydrothermal process followed by photoreduction. The rimous cadmium sulfide nanospheres with rough surface and irregular fissures greatly strengthen their adhesion and interaction with Au quantum dots, which effectively facilitates the separation, restrains the recombination, and accelerates the consumption of photoinduced electron-hole pairs. Impressively, the highest photocatalytic activity for hydrogen generation (601.2 μmol h⁻¹ g⁻¹ ) and organic pollutant degradation (100% degradation in 80 min) is obtained by adjusting the Au mass loading to achieve uniform distribution. This work paves new way to the exploitation of highly efficient metal/semiconductor hybrid photocatalysts for clean energy generation and environment restoration.
Keywords: Quantum dots; change carriers; hydrogen evolution; photocatalysis
Rights: © 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
DOI: 10.1002/smll.201602870
Grant ID:
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Chemical Engineering publications

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