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：
日本科学技术振兴机构; 欧洲研究理事会;
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
收藏
页码：97464 / 97468
页数：5
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