期刊
CERAMICS INTERNATIONAL
卷 40, 期 5, 页码 7567-7571出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2013.11.041
关键词
Niobium; Zinc oxide; Electrostatic spray deposition; Photocatalysis
资金
- Industrial Strategic Technology Development Program [10045221]
- Ministry of Knowledge Economy (MKE, Korea)
- Global Frontier R&D Program on Center for Hybrid Interface Materials (HIM) [2013-073298]
- Ministry of Science, ICT & Future Planning
- Center for Inorganic Photovoltaic Materials [2012-0001169]
- Converging Research Center Program through the Ministry of Education, Science and Technology [2013K000186]
Nanocrystalline transparent ZnO thin films, with different concentrations of niobium (Nb similar to 0, 5, 10, 15 atoms per formula unit, at%), were successfully deposited by the electrostatic spray deposition method. The crystalline phase, surface morphology, surface roughness and photocatalytic properties of these Nb:ZnO thin films were characterized by X-ray diffraction, scanning electron microscopy, atomic force microscopy, and UV-visible spectroscopy, respectively. The Nb-doped films were tested for their photocatalytic abilities in aqueous solutions of methylene blue (MB) under UV illumination, where it showed that increasing Nb up to 10 at%, with respect to ZnO, enhanced the photocatalytic activity. ZnO films doped with 10 at% Nb demonstrated excellent photocatalytic activity, with degradation of MB achieved in fewer than 2 h of UV irradiation. (c) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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