Solvent-induced improvement of Au photo-deposition and resulting photo-catalytic efficiency of Au/TiO2

被引：10

作者：

Kenens, Bart ^{[1
]}

Chamtouri, Maha ^{[1
]}

Aubert, Remko ^{[1
]}

Miyakawa, Kana ^{[2
,3
]}

Hayasaka, Yasufumi ^{[2
,3
]}

Naiki, Hiroyuki ^{[1
,3
]}

Watanabe, Hiroki ^{[2
,3
]}

Inose, Tomoko ^{[4
]}

Fujita, Yasuhiko ^{[1
]}

Lu, Gang ^{[1
]}

Masuhara, Akito ^{[2
,3
]}

Uji-i, Hiroshi ^{[1
,4
]}

机构：

[1] Katholieke Univ Leuven, Dept Chem, Celestijnenlaan 200F, B-3001 Heverlee, Belgium

[2] Yamagata Univ, Grad Sch Sci & Engn, 4-3-16 Jonan, Yonezawa, Yamagata 9928510, Japan

[3] Kwansei Gakuin Univ, Gakuen 2-1, Sanda, Hyogo 6691337, Japan

[4] Hokkaido Univ, RIES, Kita Ward, N20W10, Sapporo, Hokkaido 0010020, Japan

来源：

RSC ADVANCES | 2016年 / 6卷 / 100期

基金：

欧洲研究理事会; 日本科学技术振兴机构;

关键词：

VISIBLE-LIGHT; TIO2; NANOPARTICLES; PHOTOCATALYTIC ACTIVITY; ORGANIC POLLUTANTS; 001; SURFACE; WATER; DEGRADATION; GOLD; IRRADIATION; REACTIVITY;

D O I：

10.1039/c6ra19372b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Metal nanoparticle photo-deposition on TiO2 enhances the semiconductor catalytic activity. We show for the first time that strong adsorption of simple diol-molecules improves the photo-deposition, by introducing a TiO2 midgap state and blocking active sites. The resulting photo-deposited gold nanoparticles are mono-dispersed and well-distributed over the TiO2 particles. The photo-catalytic activity of the Au/TiO2 systems obtained in ethyleneglycol was significantly enhanced compared to those prepared in conventional solvents, such as water and ethanol.

引用

页码：97464 / 97468

页数：5

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