摘要： 以钛酸四丁酯、正硅酸乙酯为前驱体，冰醋酸为水解抑制剂，用溶胶 -凝胶法制备了纳米 TiO2/SiO2复粒子。将复合粒子按一定比例添加到醇酸清漆中，制备出自清洁涂层。光催化研究表明:SiO2负载可明显提高涂层光催化活性，添加了 2%(质量分数，下同)TiO2/SiO2粒子的涂层对茜素红的降解性能最好。利用气质联用仪对降解产物进行了分析。
关键词:
纳米TiO2/SiO2,
溶胶 -凝胶法,
茜素红,
光催化
Abstract: Nano TiO2/SiO2 compound Particles was prepared with sol-gel process using tetraethylorthosilicate and tetrabutylorthotitanate as precursors and glacial acetic acid as depressor. Which with a certain proportion was added into alkyd varnish to prepare the self-clean coatings. The photocatalysis investigation indicated that the photocatalytic activity of coatings were improved significantly by loading SiO2, the coatings added with 2 percent (%) TiO2/SiO2 particles exhibited the best decomposition performance for alizarin red. The decomposition products were analyzed by GC-MS.
Key words:
nano TiO2/SiO2; sol-gel process; ,
alizarin red; ,
photocatalysis
付 文, 刘安华, 黄军左. 纳米自洁涂料的制备及其对茜素红的降解研究[J]. 涂料工业, 2010, 40(1): 20-23.
Fu Wen', Liu Anhua, Huang Junzuo. Preparation of Nano Self-Clean Coatings and Its Functions on Degradation of Alizarin Red[J]. Paint & Coatings Industry, 2010, 40(1): 20-23.