SCHOLARLY PUBLICATION

Photocatalytic H 2 O 2 Production from Ethanol/O 2 System Using TiO 2 Loaded with Au–Ag Bimetallic Alloy Nanoparticles

Daijiro Tsukamoto, Akimitsu Shiro, Yasuhiro Shiraishi, Yoshitsune Sugano, Satoshi Ichikawa, Shunsuke Tanaka, Takayuki Hirai

📖 ACS Catalysis → 📅 2012-03-08 🔗 DOI: 10.1021/cs2006873

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📄 Abstract

TiO 2 loaded with Au–Ag bimetallic alloy particles efficiently produces H 2 O 2 from an O 2 -saturated ethanol/water mixture under UV irradiation. This is achieved via the double effects created by the alloy particles. One is the efficient photocatalytic reduction of O 2 on the Au atoms promoting enhanced H 2 O 2 formation, due to the efficient separation of photoformed electron–hole pairs at the alloy/TiO 2 heterojunction. Second is the suppressed photocatalytic decomposition of formed H 2 O 2 due to the decreased adsorption of H 2 O 2 onto the Au atoms.

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