Hydrogen treatment-improved uniform deposition of ag nanoparticles on zno nanorod arrays and their visible-light photocatalytic and surface-enhanced raman scattering properties

Sio Le Lin, Kai Chih Hsu, Chih Hsiung Hsu, Dong Hwang Chen

研究成果: Article同行評審

11 引文 斯高帕斯(Scopus)

摘要

ZnO nanorod arrays were synthesized by chemical bath deposition. After heat treatment in hydrogen or air, Ag nanoparticles were deposited on ZnO nanorod arrays by photo-reduction method. The size of Ag nanoparticles as well as the surface morphology, structure, composition, and optical property of ZnO nanorod arrays before and after the deposition of Ag nanoparticles were characterized by SEM, XRD, EDS, and UV/VIS/NIR spectrophotometer. As compared to the samples with heat treatment in air or without heat treatment, the ZnO nanorod arrays after heat treatment in hydrogen allowed Ag nanoparticles to be deposited more uniformly, densely, and numerously. Also, they exhibited higher efficiency for the visible light-driven photocatalytic degradation of Rhodamine 6G (R6G) dye. The effects of the amount of Ag nanoparticles, initial dye concentration, and temperature on the photocatalytic degradation efficiency were investigated. Furthermore, they also exhibited better surface-enhanced Raman scattering property for the detection of R6G dyes.

原文English
文章編號325
期刊Nanoscale Research Letters
8
發行號1
DOIs
出版狀態Published - 2013

All Science Journal Classification (ASJC) codes

  • 一般材料科學
  • 凝聚態物理學

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