Paper Title:
Post-Doping of ZnO with Cu and its Effect on their Photocatalytic Production of Active Oxygen Species
  Abstract

Cu doping zinc oxides (ZnOs) were prepared by a post doping process with CuCl2 at high temperature. With the increase of the dopant loading, the lattice constant c decreased firstly and then increased, which indicated that the doped Cu atoms substituted for Zn atoms at lower loading and extra dopant of the Cu atoms existed as interstitial atoms. UV-Vis diffuse reflectance spectra (UV-DRS) illustrated that the energy band gap was effectively narrowed after Cu doping. The photocatalytic production of hydroxyl radical (•OH) and superoxide anion (O2-) were determined by terephthalic acid with fluorescence spectrophotometer and nitroblue tetrazolium with UV-Vis spectrophotometer respectively, and the results showed that both the photocatalytic production of •OH and O2- were deceased with the increase of the dopant concentration, which indicated that the recombination centers were formed in the samples.

  Info
Periodical
Advanced Materials Research (Volumes 197-198)
Edited by
Huaiying Zhou, Tianlong Gu, Daoguo Yang, Zhengyi Jiang, Jianmin Zeng
Pages
853-856
DOI
10.4028/www.scientific.net/AMR.197-198.853
Citation
X. L. Xu, D. Chen, X. Duan, Z. G. Yi, Z. W. Zhou, "Post-Doping of ZnO with Cu and its Effect on their Photocatalytic Production of Active Oxygen Species", Advanced Materials Research, Vols. 197-198, pp. 853-856, 2011
Online since
February 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Patrícia Nunes, Francisco Manuel Braz Fernandes, Rui Jorge C. Silva, Elvira Fortunato, Rodrigo Martins
599
Authors: Hong Ying Dong, Kai Ming Huang, Ying Yue Teng, Yan Ping Ren, Zhi Cheng Jia, Zhen Zhu Cao, Wen Ma
Environmental Catalysis and Environmental Friendly Materials
Abstract:TiO2 nano powder doping with Sn4+ was directly synthesized by a low temperature hydrothermal method using tetrabutyl...
1591
Authors: Xiao Cai Yu, Peng Fei Zhu, Kui Sheng Song, Dong Dong Hu, Qian Du
Chapter 9: Environmental Friendly Materials
Abstract:The Fe3+-doped nano-TiO2 catalyst with various amounts of dopant Fe3+ irons was prepared by a sol-gel method. The products were characterized...
2001
Authors: M. Rajendraprasad Reddy, Mutsumi Sugiyama, K. T. Ramakrishna Reddy
Chapter 13: Thin Films
Abstract:Nickel-doped ZnO thin films with different Ni contents (0 - 15%) were deposited on glass substrate at 350°C by a spray pyrolysis technique....
1423