Sunlight photocatalysis in coral-like TiO2 film

被引：19

作者：

Zhang, Yijie ^{[1
]}

Li, Xianfeng ^{[1
]}

Hua, Xiaoshe ^{[1
]}

Ma, Naiheng ^{[1
]}

Chen, Dong ^{[1
]}

Wang, Haowei ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Inst Ecol & Environm Mat, Shanghai 200240, Peoples R China

来源：

SCRIPTA MATERIALIA | 2009年 / 61卷 / 03期

关键词：

TiO2; Catalysis; Optical absorption; Anodization; Thin films; SENSITIZED SOLAR-CELLS; WASTE-WATER TREATMENT; VISIBLE-LIGHT; ENVIRONMENTAL APPLICATIONS; NANOTUBE ARRAYS; DEGRADATION; OXIDATION; ELECTRODE; OXIDES;

D O I：

10.1016/j.scriptamat.2009.04.005

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

To improve the quantum efficiency of TiO2 film irradiated by sunlight, coral-like TiO2 film composed by nanorods and a nanonet structure was prepared by anodizing Ti in HF-Na2SiF6-FeCl3 solution. The coral-like TiO2 film revealed an improvement over the TiO2 nanotube under sunlight in both optical absorption and photocatalytic activity such as photodegradation of reactive brilliant red. Under sunlight irradiation, the photoelectrocatalytic degradation rate of a coral-like TiO2/Ti electrode (45.2%) was about four times higher than that of a nanotube TiO2/Ti electrode (11.9%) at 1.5 V potential application. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：296 / 299

页数：4

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