fulltext.study @t Gmail

Low temperature growth of ZnO nanowire arrays with enhanced high performance photocatalytic activity and reusability

Paper ID Volume ID Publish Year Pages File Format Full-Text
49425 46745 2014 5 PDF Available
Title
Low temperature growth of ZnO nanowire arrays with enhanced high performance photocatalytic activity and reusability
Abstract

•ZnO nanowire arrays have been synthesized at low reaction temperature (80 °C).•ZnO nanowire arrays have been grown at short reaction time (1.5 h).•ZnO nanowire arrays exhibit very prominent green emission in the CL spectrum.•ZnO nanowire arrays exhibit very effective and recyclable photocatalysts.•The ZnO nanowire arrays shall be beneficial for optoelectronic applications.

Aligned ZnO nanowire arrays have been grown on the silicon substrates with ZnO seed layer by an aqueous chemical growth process at low reaction temperature. The volumes of ammonium hydroxide solution are not only controlled by the dimension and density of ZnO nanowires, but are also influenced by their optical emission property. The ZnO nanowire arrays exhibit very strong and broad green emission from defect in the cathodoluminescence spectrum. In addition, the ZnO nanowires grown on the silicon substrates can serve as effective and convenient recyclable photocatalysts. Only a very slight decrease in the photodecomposition rate was observed after ten cycles of the photocatalysis experiment.

Keywords
Nanowire; Aqueous chemical growth; Cathodoluminescence; Photocatalysts
First Page Preview
Low temperature growth of ZnO nanowire arrays with enhanced high performance photocatalytic activity and reusability
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 56, 5 November 2014, Pages 45–49
Authors
,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis