期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 20, 期 51, 页码 17004-17010出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201404472
关键词
electronic coupling; linker-mediated hybridization; nanomaterials; photocatalysis; self-assembly
资金
- Global Frontier R&D Program on Center for Hybrid Interface Materials (HIM) - Ministry of Science, Korea Ministry of Environment as Converging Technology Project [2013-073298]
- MOST
- POSTECH
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 H-2 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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