【摘要】 为确定二氧化硅溶胶在棉织物上的吸附动力学,采用硅钼蓝法对其进行了研究。通过对Langmuir吸附模型和Freundlich吸附模型的比较,确定二氧化硅溶胶在织物上的吸附符合Langmuir吸附模型;通过对不同初始浓度溶胶液性能的测试,确定了其反应级数为一级;通过测定不同吸附温度下残液中硅浓度的方法得到了不同温度下的吸附速率常数,其活化能为13.56 kJ/mol,指前因子A0为1.287 s-1。更多还原

【Abstract】 Silicon-molybdenum blue method was employed to study the kinetics of silica sol adsorption in cotton fabrics.Comparative study of Langmuir and Freundlich adsorption models showed that the former model was more applicable to the silica adsorption in cotton fabrics.The reaction order of the adsorption was gotten by measuring the adsorption of sol solution with different initial concentrations,and it was firstorder.Absorption rate constants were gotten by determining the concentration of silica in residue after adsorption at different temperatures.The activation energy was 13.56 kJ /mol,and the preexponential factor A0 was 1.287 s-1.更多还原