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TiO2/SiO2气凝胶微球的乳液反应法制备及其光催化活性
Synthesis and Photocatalytic Activity of TiO2/SiO2 Aerogel Microspheres by W/O Emulsion Reaction and Ambient Pressure Drying Method
【作者】 刘明贤； 甘礼华； 徐子颉； 王京红； 庞颖聪； 郝志显； 陈龙武；
【Author】 Ming-Xian Liu, Li-Hua Gan, Zi-Jie Xu, Jing-Hong Wang, Ying-Cong Pang, Zhi-Xian Hao, Long-Wu Chen Department of Chemistry, Tongji University, 200092, Shanghai
【机构】 同济大学化学系；
【Abstract】 TiO2/SiO2 aerogel microspheres (TSAMs) were synthesized by W/O emulsion method and ambient pressure drying technique using TiOSO4 and silica sols as raw materials. The results show that the apparent sizes of TSAMs are 100 μm, the apparent density of TSAMs is 297 kg·m-3, while surface area is as high as 372 m2·g-1, and average pore size is 15 nm with porosity of 86.5%. The TSAMs show high photocatalytic activity and their degradation ratio of methylene blue is much higher than that of P25-TiO2 powders and TiO2/SiO2 monolithic aerogels.
- 【会议录名称】 中国化学会第二十五届学术年会论文摘要集（下册）
- 【会议名称】中国化学会第二十五届学术年会
- 【会议时间】2006-07
- 【会议地点】中国吉林长春
- 【分类号】O611.3;O644.1
- 【主办单位】中国化学会