A linker-mediated self-assembly method to couple Isocharged nanostructures: layered double hydroxide-CdS nanohybrids with high activity for visible-light-induced H2 Generation
Date
2014
Authors
Lee, J.M.
Gunjakar, J.L.
Ham, Y.
Kim, I.Y.
Domen, K.
Hwang, S.J.
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Journal article
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Chemistry - A European Journal, 2014; 20(51):17004-17010
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Abstract
The electrostatically derived self-assembly of cationic Zn-Cr-layered double hydroxide (LDH) nanosheets and cationic CdS quantum dots (QDs) with anionic linkers leads to the formation of strongly coupled Zn-Cr-LDH-CdS nanohybrids. The hybridization with Zn-Cr-LDH leads to significant enhancement of the photocatalytic activity of CdS for visible-light-induced H2 generation, a property that is attributed to the depression of electron-hole recombination. In comparison with a direct hybridization method between oppositely charged species, this linker-mediated method provides greater flexibility in controlling the chemical composition and electronic coupling of the nanohybrids. The present hybridization strategy provides a useful method not only to couple two kinds of isocharged nanostructured materials, but also to explore efficient hybrid-type photocatalysts.
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Data source: Supporting information, http://onlinelibrary.wiley.com/doi/10.1002/chem.201404472/abstract;jsessionid=44DC437F90655E32EF676421D3E4CB75.f01t01#footer-support-info
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Copyright 2014 Wiley-VCH Verlag