Journal
ACS CATALYSIS
Volume 2, Issue 4, Pages 599-603Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cs2006873
Keywords
photocatalysis; titanium dioxide; nanoparticle; alloy; hydrogen peroxide
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Funding
- Ministry of Education, Culture, Sports, Science, and Technology, Japan (MEXT) [23360349]
- Grants-in-Aid for Scientific Research [23360349, 10J01210] Funding Source: KAKEN
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TiO2 loaded with Au-Ag bimetallic alloy particles efficiently produces H2O2 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 H2O2 Formation, due to the efficient separation of photoformed electron-hole pairs at the alloy/TiO2 heterojunction. Second is the suppressed photocatalytic decomposition of formed H2O2 due to the decreased adsorption of H2O2 onto the Au atoms.
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