摘要
测定了20℃、30℃、40℃时水溶液中的丙酮在活性炭上的吸附平衡数据,用Freundlich方程拟合吸附等温线效果较好。采用Freundlich方程形式,利用Clausius Clapeyron方程计算出不同吸附量下的丙酮在活性炭上的等量微分吸附热,发现等量微分吸附热随吸附量的增大而减小。这是由于活性炭表面能量不均匀性和丙酮分子之间相互排斥作用所造成的。
The adsorption equilibrium for acetone on activated carbon was measured, the data obtained was well correlated in Freundlich isotherm form. Isosteric heat of adsorption which was determined from ClausisClapeyron equation decreased with the amount adsorbed increasing. It was caused by the activated carbon surface energetical heterogeneity and the interaction between the acetone.
出处
《华东船舶工业学院学报》
2003年第4期64-67,共4页
Journal of East China Shipbuilding Institute(Natural Science Edition)
关键词
丙酮
活性炭
吸附平衡
acetone
activated carbon
adsorption equilibrium
