多孔玻璃管复合TiO_2薄膜光催化清除乙烯的研究  

Investigation on Removing Ethylene by Photocatalyst of TiO_2 Thin Films Coated on Porous Glass Pipes

作　　者：梁晓娟[1] 杨昕宇[1] 向卫东[1] 潘明初[1] 刘维学[2] 

机构地区：[1]温州大学应用技术学院,温州325035 [2]同济大学材料学院,上海200092

出　　处：《硅酸盐通报》2006年第3期185-188,共4页Bulletin of the Chinese Ceramic Society

基　　金：温州大学校级项目资助(2005L015);大连市基金课题资助(2001/12203).

摘　　要：通过分相、酸处理工艺制备多孔玻璃管,利用溶胶-凝胶方法在多孔玻璃管上复合TiO2薄膜。在紫外灯的照射下,使乙烯通过复合有TiO2薄膜的多孔玻璃管所组成的反应床,用气相色谱仪检测光催化清除乙烯的效果,借助扫描电子显微镜、X射线衍射仪、热分析仪对多孔玻璃管的表面形貌、TiO2的晶型结构、热处理过程中的热反应过程进行分析表征。结果表明,分相、酸处理为720℃/12h、2mol/LHCl/72h条件下制备的多孔玻璃管复合TiO2薄膜对乙烯的清除效果良好。Porous glass pipes coated with TiO2 thin films were prepared by phase-separation, acid treatment and Sol-gel method, in this investigation. The reactive bed which is composed of porous glass pipes coated with TiO2 was used to remove ethylene gas. The effect of removing ethylene was characterized by GC. The surface morphology, crystallization and thermal property of porous glass pipes coated with TiO2 thin films were investigates by means of SEM, XRD, and DSC-TGA. The results show that the ethylene was removed well by means of porous glass pipes coated with TiO2 thin film prepared under the conditions of phase-separation （720℃/2h） and acid treatment （2mol/L/72h）.

关 键 词：多孔玻璃管 TIO2薄膜 光催化 乙烯 

分 类 号：TQ171.65[化学工程—玻璃工业] O484[化学工程—硅酸盐工业]