Photocatalytic Water Splitting under Visible Light by Mixed-Valence Sn3O4
ACS Applied Materials & Interfaces2014Vol. 6(6), pp. 3790–3793
Citations Over TimeTop 10% of 2014 papers
Maidhily Manikandan, Toyokazu Tanabe, Peng Li, Shigenori Ueda, Gubbala V. Ramesh, Rajesh Kodiyath, Junjie Wang, Toru Hara, D. Arivuoli, Shinsuke Ishihara, Katsuhiko Ariga, Jinhua Ye, Naoto Umezawa, Hideki Abe
Abstract
A mixed-valence tin oxide, (Sn(2+))2(Sn(4+))O4, was synthesized via a hydrothermal route. The Sn3O4 material consisted of highly crystalline {110} flexes. The Sn3O4 material, when pure platinum (Pt) was used as a co-catalyst, significantly catalyzed water-splitting in aqueous solution under illumination of visible light (λ > 400 nm), whereas neither Sn(2+)O nor Sn(4+)O2 was active toward the reaction. Theoretical calculations have demonstrated that the co-existence of Sn(2+) and Sn(4+) in Sn3O4 leads to a desirable band structure for photocatalytic hydrogen evolution from water solution. Sn3O4 has great potential as an abundant, cheap, and environmentally benign solar-energy conversion catalyst.
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