Visible-light photodecomposition of acetaldehyde by TiO2-coated gold nanocages: plasmon-mediated hot electron transport via defect states

Skeletal gold nanocages (Au NCs) are synthesized and coated with TiO2 layers (TiO2-Au NCs). The TiO2-Au NCs exhibit enhanced photodecomposition activity toward acetaldehyde under visible light (>400 nm) illumination because hot electrons are generated over the Au NCs by local surface plasmon reso...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2014-12, Vol.50 (98), p.15553
Main Authors: Kodiyath, Rajesh, Manikandan, Maidhily, Liu, Lequan, Ramesh, Gubbala V, Koyasu, Satoshi, Miyauchi, Masahiro, Sakuma, Yoshiki, Tanabe, Toyokazu, Gunji, Takao, Duy Dao, Thang, Ueda, Shigenori, Nagao, Tadaaki, Ye, Jinhua, Abe, Hideki
Format: Article
Language:English
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Summary:Skeletal gold nanocages (Au NCs) are synthesized and coated with TiO2 layers (TiO2-Au NCs). The TiO2-Au NCs exhibit enhanced photodecomposition activity toward acetaldehyde under visible light (>400 nm) illumination because hot electrons are generated over the Au NCs by local surface plasmon resonance (LSPR) and efficiently transported across the metal/semiconductor interface via the defect states of TiO2.
ISSN:1364-548X
DOI:10.1039/c4cc06229a