Ultrasound aided photochemical synthesis of Ag loaded TiO2 nanotube arrays to enhance photocatalytic activity

被引：227

作者：

Sun, Lan ^{[1
]}

Li, Jing ^{[1
]}

Wang, Chenglin ^{[1
]}

Li, Sifang ^{[1
]}

Lai, Yuekun ^{[1
,2
]}

Chen, Hongbo ^{[1
]}

Lin, Changjian ^{[1
,2
]}

机构：

[1] Xiamen Univ, Dept Chem, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China

[2] Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2009年 / 171卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

TiO2 nanotube array; Ag nanoparticle; Ultrasound aided photochemistry; Photocurrent; Photocatalytic degradation; THIN-FILMS; SILVER NANOPARTICLES; METAL NANOPARTICLES; AU NANOPARTICLES; ANODIC-OXIDATION; SOLAR-CELLS; FABRICATION; LAYERS; DEGRADATION; REDUCTION;

D O I：

10.1016/j.jhazmat.2009.06.115

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This work presents a novel approach for preparing TiO2 nanotube array photocatalyst loaded with highly dispersed Ag nanoparticles through an ultrasound aided photochemical route. The Ag content loaded on the array was controlled by changing the concentration of AgNO3 solution. The Ag-TiO2 nanotube arrays were characterized by SEM, XRD, XPS and UV-vis absorption. The effects of Ag content on the photoelectrochemical (PEC) property and photocatalytic activity of TiO2 nanotube array electrode were studied. The results showed that Ag loading significantly enhanced the photocurrent and photocatalytic degradation rate of TiO2 nanotube array under W-light irradiation. The photocurrent and photocatalytic degradation rate of Ag-TiO2 nanotube array prepared in 0.006 M AgNO3 solution were about 1.2 and 3.7 times as that of pure TiO2 nanotube array, respectively. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1045 / 1050

页数：6

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