以普通玻璃片为基材,钛酸丁酯为前驱体,通过氮掺杂可见光改性和三甲基氯硅烷疏水化修饰的方法,制备出一种新颖的表面浸润性受可见光控可逆转换的纳米TiO2薄膜材料(N-TiO2-CTMS).采用UV-Vis、FE-SEM、接触角测试等方法对样品进行了表征和分析.研究结果显示掺氮量存在最佳值,20％的样品(20％N-TiO2)在可见光下降解甲基橙活性最高.对20％N-TiO2膜进行疏水化修饰后,接触角达到95°,可见光照射5h产生相对亲水表面(45°),置于黑暗处5h恢复相对疏水(90°),如此转换可于同一样品多次重复,说明样品具有一定的可见光控亲/疏水可逆转换功能.并对上述现象进行了初步的机理探讨.
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