Ultrasonic spray pyrolysis growth of ZnO and ZnO:Al nanostructured films: Application to photocatalysis

被引：34
作者：
Kenanakis, G. [1 ,2 ]
Katsarakis, N. [1 ,2 ]
机构：
[1] Fdn Res & Technol Hellas, Inst Elect Struct & Laser, Iraklion 71110, Crete, Greece
[2] Technol Educ Inst Crete, Sch Appl Technol, Ctr Mat Technol & Photon, Iraklion 71004, Crete, Greece
来源：
MATERIALS RESEARCH BULLETIN | 2014年 / 60卷
关键词：
Oxides; Semiconductors; Nanostructures; Thin films; Chemical synthesis; Catalytic properties; THIN-FILMS; OPTICAL-PROPERTIES; STEARIC-ACID; BAND-GAP; DEGRADATION; HYDROPHILICITY; DIOXIDE;
D O I：
10.1016/j.materresbull.2014.09.060
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Pure and Al-doped ZnO (Al = 1,3, 5%) nanostructured thin films were grown at 400 degrees C on glass substrates by ultrasonic spray pyrolysis, a simple, environmental-friendly and inexpensive method, using aqueous solutions as precursors. The structural and morphological characteristics of the samples depend drastically on deposition parameters; ZnO nanostructured films, nanopetals and nanorods were systematically obtained by simply varying the precursor solution and/or the spraying time. Transmittance measurements have shown that all samples are transparent in the visible wavelength region. Finally, the photocatalytic properties of the samples were investigated against the degradation of stearic acid under UV-A light illumination (365 nm); both pure and Al-doped ZnO nanostructured thin films show good photocatalytic activity regarding the degradation of stearic acid, due to their good crystallinity and large surface area. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：752 / 759
页数：8
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