Influence of Tin Doping on the Photocatalytic Activity of Zinc Oxide Thin Films under UV Light  

作　　者：Praramate Mongkolserm Suwat Pabchanda 

机构地区：[1]Centre of Excellence for Innovation in Chemistry-PERCH-CIC, Department of Chemistry, Faculty of Science, Ubon RatehathaniUniversity, Ubon Ratchathani 34190, Thailand

出　　处：《Journal of Chemistry and Chemical Engineering》2012年第7期631-637,共7页化学与化工（英文版）

摘　　要：Pure ZnO and Sn-doped ZnO thin films were successfully prepared by the spray pyrolysis method onto glass substrates. The obtained films were characterized by XRD （X-ray diffraction）, SEM （scanning electron microscopy） and ultraviolet-visible spectroscopy. The XRD results showed that the FWHM of Sn-doped ZnO film increased due to the substitution of Sn for Zn, the tin doping within the film causes the ZnO crystallinity to deteriorate. The grains of the film doped with Sn using dibutyltin diacetate were found to be non-uniform distribution through the sample but those appeared to form ganglia-like hills in the case of pure ZnO film. Furthermore, the Sn-doped ZnO films were tested with respect to the photocatalysis in aqueous solutions of MG （malachite green） upon UV-light illumination and in darkness. It was found that Sn-doped ZnO films prepared under specific conditions showed a lower photocatalytic activity than that of pure ZnO films.

关 键 词：Zinc oxide thin film photocatalytic activity spray pyrolysis. 

分 类 号：O643.36[理学—物理化学] TN304.21[理学—化学]