Gold-Nanoparticle-Loaded Carbonate-Modified Titanium(IV) Oxide Surface: Visible-Light-Driven Formation of Hydrogen Peroxide from Oxygen

被引：136

作者：

Teranishi, Miwako ^{[1
]}

Hoshino, Riyoko ^{[2
]}

Naya, Shin-ichi ^{[1
]}

Tada, Hiroaki ^{[2
]}

机构：

[1] Kindai Univ, Environm Res Lab, 3-4-1 Kowakae, Osaka 5778502, Japan

[2] Kindai Univ, Dept Appl Chem, Sch Sci & Engn, 3-4-1 Kowakae, Osaka 5778502, Japan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2016年 / 55卷 / 41期

关键词：

hydrogen peroxide; oxygen reduction reaction; plasmonics; photocatalysis; solar chemical transformations; MOLECULAR-OXYGEN; TIO2; SURFACES; PHOTOCATALYSTS; OXIDATION; DIOXIDE; RUTILE; WATER; DEPENDENCE; PARTICLES;

D O I：

10.1002/anie.201606734

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Gold nanoparticle-loaded rutile TiO2 with a bimodal size distribution around 10.6nm and 2.3nm (BM-Au/TiO2) was prepared by the deposition precipitation and chemical reduction (DP-CR) technique. Visible-light irradiation (>430nm) of the BM-Au/TiO2 plasmonic photocatalyst yields 35m H2O2 in aerated pure water at irradiation time (t(p))=1h, and the H2O2 concentration increases to 640 +/- 60m by the addition of 4% HCOOH as a sacrificing electron donor. Further, a carbonate-modified surface BM-Au/TiO2 (BM-Au/TiO2-CO32-) generates a millimolar level of H2O2 at t(p)=1h with a quantum efficiency (phi) of 5.4% at =530nm under the same conditions. The recycle experiments confirmed the stable performance of BM-Au/TiO2.

引用

页码：12773 / 12777

页数：5

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