Photoactive materials prepared by homogeneous hydrolysis with thioacetamide: Part 2—TiO₂/ZnO nanocomposites

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• 作者：Vendula Hou&#x161 ; ková ; Vá ; clav &#x160 ; tengl ; Snejana Bakardjieva ; Nataliya Murafa
• 关键词：Fetal loss ; Antiphospholipid antibodies
• 刊名：Journal of Physics and Chemistry of Solids
• 出版年：2008
• 期刊代码：69_00223697
• 类别：ch
• 出版时间：July 2008
• 卷：69
• 期：7
• 页码：1623-1631
• 文件大小：1482 K

摘要

Photocatalytic active titanium dioxide (TiO₂)/zinc oxide (ZnO) composite was prepared by homogeneous hydrolysis of a mixture of titanium oxo-sulphate and zinc sulphate in aqueous solutions with thioacetamide and subsequent annealing at the temperature of 600 °C. The prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and high-resolution transmission microscopy (HRTEM). Nitrogen adsorption–desorption was used for surface area (Brunauer–Emmett–Teller—BET) and porosity determination. The photoactivity of the prepared TiO₂/ZnO samples was assessed by the photocatalytic decomposition of Orange II dye in an aqueous slurry under irradiation of 254 and 365 nm wavelengths. Under the same conditions, the photocatalytic activity of a commercially available photocatalyst (Degussa P25), the pure anatase TiO₂ nanoparticles and cubic ZnO were examined.