The surface chemistry of hybrid nanometer-sized particles -: I.: Photochemical deposition of gold on ultrafine TiO2 particles

被引：124

作者：

Wang, CY

Liu, CY ^{[1
]}

Zheng, X

Chen, J

Shen, T

机构：

[1] Acad Sinica, Inst Photog Chem, Beijing 100101, Peoples R China

[2] Beijing Univ, Electron Microscopy Lab, Beijing 100871, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1998年 / 131卷 / 1-3期

关键词：

hybrid colloidal particles; photocatalytic reduction; surface modification; surface plasmon;

D O I：

10.1016/S0927-7757(97)00086-1

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：

Hybrid colloidal particles consisting of a gold shell and an ultrafine TiO2 particle core were formed by irradiation of an HAuCl4 solution with light at a wavelength lambda>330 nm in the presence of TiO2 colloid. Absorption maxima attributed to gold surface plasmons were observed at 525-555 nm. The size of the Au/TiO2 particles, determined by TEM, was about 10 nm. The catalytic properties of the coupled particles were tested in parallel experiments of the photocatalytic reduction of methylene blue both on TiO2 and the Au/TiO2 particles. (C) 1998 Elsevier Science B.V.

引用

页码：271 / 280

页数：10

共 46 条

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