采用胶溶法合成了纳米晶锐钛矿溶胶,在玻璃基底上用提拉法制备出TiO2纳米薄膜.使用XRD、TEM、SEM和AFM和接触角等方法对TiO2溶胶和薄膜的结构进行了表征.结果表明,胶溶法合成的TiO2溶胶为锐钛矿型且结晶度较高,TiO2晶粒为针状,平均粒径约为8 nm；TiO2薄膜表面光滑,颗粒平均粒径约为86 nm.3层薄膜的厚度约为150 nm,涂膜层数对膜表面结构形貌影响有限.常温制备出的薄膜经紫外光照80 min,对亚甲基蓝的降解率达到93.6％,其活性随着热处理温度升高而提高.薄膜具备超亲水性,自清洁和抗菌性能.
参考文献
| [1] | T. Watanabe;A. Nakajima;R. Wang;M. Minabe;S. Moizumi;A. Fujishima;K. Hashimoto .Photocatalytic activity and photoinduced hydrophilicity of titanium dioxide coated glass[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,1999(12):260-263. |
| [2] | Toshiya Watanabe;Shigemichi Fukayama;Masahiro Miyauchi;Akira Fujishima;Kazuhito Hashimoto .Photocatalytic Activity and Photo-Induced Wettability Conversion of TiO_2 Thin Film Prepared by Sol-Gel Process on a Soda-Lime Glass[J].Journal of Sol-Gel Science and Technology,2000(1/3):71-76. |
| [3] | Yu JG.;Zhao QN.;Zhao XJ. .Effect of surface structure on photocatalytic activity of TiO2 thin films prepared by sol-gel method[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2000(1/2):7-14. |
| [4] | Hiromichi Ichinose;M. Terasaki;H. Katsuki .Properties of Peroxotitanium Acid Solution and Peroxo-Modified Anatase Sol Derived From PeroxotitaniumHydrate[J].Journal of Sol-Gel Science and Technology,2001(1/2):33-40. |
| [5] | Ge L;Xu MX;Fang HB .Synthesis of titanium oxide layers on glass substrates with aqueous refluxed sols (RS) and photocatalytic activities[J].Journal of Materials Science,2007(13):4926-4934. |
| [6] | Zhangfu Yuan;Bin Li;Junling Zhang .Synthesis of TiO_2 thin film by a modified sol-gel method and properties of the prepared films for photocatalyst[J].Journal of Sol-Gel Science and Technology,2006(3):249-253. |
| [7] | 戈磊,徐明霞,方海波,李岩.过氧钛酸溶胶前驱体制备TiO2薄膜及其光催化性能[J].硅酸盐学报,2005(03):330-334. |
| [8] | 孙振范,李玉光.TiO2纳米膜表面结构形态特征[J].物理化学学报,2002(10):896-900. |
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