Exploitation of piezoelectricity for enhancing photocatalytic activity of ZnO nanowires

被引：27

作者：

Chang, Jan-Hau ^{[1
]}

Lin, Heh-Nan ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan

来源：

MATERIALS LETTERS | 2014年 / 132卷

关键词：

Semiconductors; Nanocrystalline materials; Piezoelectricity; ZnO nanowire; Photocatalysis; ZINC-OXIDE NANOWIRES; SOLVOTHERMAL SYNTHESIS; GROWTH; NANOPARTICLES; PERFORMANCE; DEGRADATION; ARRAYS;

D O I：

10.1016/j.matlet.2014.06.066

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on an investigation of the photocatalytic activity of substrate-supported ZnO nanowires (NWs) with Ag modification and induced bending. By degrading a 50 mu M rhodamine B solution, it is found that the zeroth-order kinetic constant of Ag modified bent NWs is 1.4 and 2.2 times as high as that of Ag modified unbent NWs and unmodified as-grown NWs, respectively. The improvement due to bending is related to the piezoelectric property of ZnO that facilitates charge separation. The present work demonstrates the usefulness of piezoelectricity for photocatalysis. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：134 / 137

页数：4

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