Synthesis and Characterization of Superhydrophobic SiO2 and SiO2/TiO2 Composite Aerogel at an Ambient Pressure

摘要：

1.Introduction It has been accepted that titania with a large surface area and small particle size is desirable for photocatalytic reaction. So far many efforts have been concentrated on the synthesis of photocatalysts in a high-surface-area form like aerogels or through the combination of silica and titania1. Superhydrophobic silica and silica/titania aerogels are better suitable for organic pollutants adsorption from water and catalytic supports in reactions including partial oxidation, isomerization, nitroxidation, erterification, epoxidation, CO oxidation and so on2-3. However, an inherent problem for the preparation of mixed oxides by sol-gel processing of a mixture of different metal aloxides is that phase separation may occur because of different hydrolysis and condensation rates. In this paper, the homogeneous superhydrophobic SiO2 and SiO2/TiO2 composite aerogels were synthesized at an ambient pressure.

关键词： SiO2/TiO2 aerogel ambient pressure drying superhydrophobic photodecolorization

作者: Jianjun Zhu Jimin Xie Xiaomeng Lv Min Chen

作者单位: School of Chemistry and Chemical Engineering,Jiangsu University,Zhenjiang 212013,China

会议类型: 国际会议

会议名称: 18th International Symposium on Fine Chemistry and Functional Polymers,4th IUPAC International Symposium on Novel Materials and Their Synthesis(第18届国际精细化学和功能高分子学术讨论会暨第四届IUPAC 国际新型材料及其制备学术讨论会)

会议地点: 江苏镇江

会议语种:英文

页码: 317-319

在线出版日期: 2008-10-15（万方平台首次上网日期，不代表论文的发表时间）