TiO_2-SnO_2复合凝胶的水-乙醇蒸气吸附动力学研究  

STUDIES ON THE ADSORPTION DYNAMICS OF TiO_2-SnO_2 GELS TO WATER ALCOHOL GASES

作　　者：蒲敏[1] 王海霞[2] 吉宏伟[2] 吴东[1] 孙予罕[1] 

机构地区：[1]中国科学院山西煤炭化学研究所煤转化国家重点实验室,山西太原0300011 [2]西安交通大学,陕西西安710049

出　　处：《燃料化学学报》2001年第z1期170-173,共4页Journal of Fuel Chemistry and Technology

基　　金：陕西省自然科学基金 ( 98H0 4)~~

摘　　要：采用溶胶 -凝胶法制备了TiO2 SnO2 复合凝胶 ,研究了复合凝胶对水蒸气和乙醇气体的吸附动力学。测定结果表明 ,TiO2 SnO2 复合凝胶吸附水蒸气和乙醇气体的量与时间的关系满足单活性位吸附模型 ,具有方程x =c1[1 exp( c2 t) ]的形式 ,含TiO2 80 %SnO2 2 0The TiO 2 SnO 2 gels have been prepared by sol gel method The adsorption dynamics of the gels has been studied, and the dynamical curves to adsorb H 2O and C 2H 5OH have the form of x = c 1[1 exp( c 2t)] It is in agreement with the adsorption equation of the single active site model The experimental results show that the compositions of the gels have large effects on the adsorption quantities, and the gel composed of TiO 2 80% and SnO 2 20% has the strongest adsorption to the H 2O and C 2H 5OH gases

关 键 词：二氧化钛 二氧化锡 凝胶 吸附动力学 

分 类 号：O64.12[理学—物理化学]