Characterization of photocatalytic performance of silver deposited TiO2 nanorods

被引：41

作者：

Yun, Hyeong Jin ^{[1
]}

Lee, Hyunjoo ^{[2
]}

Kim, Nam Dong ^{[1
]}

Yi, Jongheop ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Chem & Bioengn, Seoul 443749, South Korea

[2] Yonsei Univ, Dept Chem & Biomol Engn, Seoul 120749, South Korea

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2009年 / 11卷 / 02期

关键词：

Photocatalyst; Silver deposited TiO2; Surface modification; Shape effect; Photocatalytic decomposition; SENSITIZED SOLAR-CELLS; NANOPARTICLES; DEGRADATION; WATER;

D O I：

10.1016/j.elecom.2008.11.044

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Ag-TiO2 nanorods were synthesized via gel-sol methods. Cyclic voltammetry results showed that surface modification of TiO2 nanorods using Ag led better electrochemical activity involving fast electron transfer to electrode. Electrochemical impedance spectroscopy results revealed that the increase in aspect ratio of TiO2 nanorods and surface modification resulted in synergetic effect of reduction of e(-)/h(+) recombination and charge transfer resistance. Consequently the use of Ag-TiO2 nanorods as photocatalysts exhibited significant increase in photocatalytic decomposition rate of acid red 44. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：363 / 366

页数：4

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