期刊
CATALYSIS TODAY
卷 161, 期 1, 页码 8-14出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cattod.2010.10.001
关键词
Thin layers; Hollow cathode; TiO2; ZnO; CNFs; IPCE; Photocatalysis
资金
- Grant Agency of Academy of Sciences of the Czech Republic [KAN400720701, KAN301370701]
- Ministry of Education of the Czech Republic [Nanopin 1M0577, 1M06002]
The basic objective of this work is related to the research on the design of hierarchic multilayer systems with the assumed final functionality utilized for microelectronics and photovoltaics. We report on photoelectrochemical functionality of the multilayer system consisting of carbon nanofibers (CNFs)/photoactive anatase TiO2/conductive ZnO thin films. The CNFs' layers were obtained by annealing the polyacrylonitrile (PAN) web deposited by the electrospinning method. Titanium dioxide and zinc oxide layers were deposited by means of a hollow cathode cold plasma deposition system. Raman spectra confirmed carbon nanofibers, crystalline TiO2 and ZnO forming individual layers as well as the final multilayer assembly. A mixture of various ZnxTiyOz phases was also observed. These structures were produced due to the reactions between the highly energetic zinc ions generated in the plasma environment and the TiO2 layer. The same phenomenon is probably responsible for the doping of TiO2 by carbon atoms originating from CNFs and leading to a significant decrease of the photocatalytic activity. (C) 2010 Elsevier B. V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据