Fabrication of a 12-tungstophosphate and cadmium oxide composite film and its properties
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- 作者：Di Zhang zhangdi19890712@163.com" class="auth_mail ; Yeqiong Zhang zhangyeqiong2000@yahoo.com.cn" class="auth_mail ; Huiyuan Ma ; mahy017@163.com" class="auth_mail ; mahy017@nenu.edu.cn" class="auth_mail ; Hong Yan yanhong204821@yahoo.com.cn" class="auth_mail ; Yongbin Song songyongbin1981@sina.com" class="auth_mail
- 关键词：Composite materials ; Thin film ; Electrochemical properties ; Optical properties
- 刊名：Materials Chemistry and Physics
- 出版年：15 April, 2014
- 年：2014
- 卷：144
- 期：3
- 页码：369-376
- 全文大小：2469 K
文摘
A multilayer composite film of the 12-tungstophosphate H3[PW12O40]3鈭?/sup> (PW12) and cadmium oxide nanoparticles (CdO) was fabricated on quartz and silicon by the layer-by-layer (LBL) self-assembly method. The film was characterized by UV-vis spectroscopy, atomic force microscopy (AFM) and luminescence spectra. The proposed composite film exhibits higher photocatalytic activity toward methyl orange (MO) solution at pH 3.5, compared to single PW12 and CdO films. The degradation rate was affected by initial concentration of PW12, pH value of MO solution, inorganic ions concentration and type in MO solution. In addition, the composite film displays luminescent property and reversible electrochromic property with fast response time.