Preparation of visible-light nano-photocatalysts through decoration of TiO2 by silver nanoparticles in inverse miniemulsions

被引：17

作者：

Cao, Zhihai ^{[1
,2
]}

Zhu, Shudi ^{[1
]}

Qu, Hui ^{[1
]}

Qi, Dongming ^{[2
]}

Ziener, Ulrich ^{[3
]}

Yang, Liu ^{[1
]}

Yan, Yingjie ^{[1
]}

Yang, Haitang ^{[1
]}

机构：

[1] Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, Hangzhou 310036, Zhejiang, Peoples R China

[2] Zhejiang Sci Tech Univ, Minist Educ, Key Lab Adv Text Mat & Mfg Technol, Hangzhou 310018, Zhejiang, Peoples R China

[3] Univ Ulm, Inst Organ Chem Macromol Chem & Organ Mat 3, D-89081 Ulm, Germany

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2014年 / 435卷

关键词：

Inverse miniemulsion; Ag/TiO2; nanocomposites; Visible-light nano-photocatalyst; Sol-gel; Reduction; SURFACE; NANOSTRUCTURES; AG; NANOCOMPOSITES; NANOCAPSULES; PHOTOLYSIS; PRECURSOR; DIOXIDE; TITANIA; SIZE;

D O I：

10.1016/j.jcis.2014.08.021

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ag/TiO2 nanocomposites were prepared through combination of a sol-gel process of a titanium precursor in inverse miniemulsions and in situ reduction of silver ions in the "nanoreactors". The morphological investigation shows that Ag nanoparticles are mainly located on the surface of TiO2 nano-supports because of the fast reduction rate of Ag ions by hydrazine. Ag/TiO2 nanocomposites with amorphous or anatase TiO2 phase displayed high visible-light catalytic activity for degradation of Rhodamine B. The photoactivity of Ag/anatase TiO2 nanocomposites could be influenced by the Ag content that could be conveniently tuned by the loading of silver salts. The influence of the loading of silver salts on the particle properties of the Ag/TiO2 nanocomposites was investigated systematically. (C) 2014 Elsevier Inc. All rights reserved.

引用

页码：51 / 58

页数：8

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