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 first-order. Absorption rate constants were gotten by determining the concentration of silica in residue after adsorption at different temperatures. The activation energy was 13.56kJ/mol, and the preexponential factor A0 was 1.287s-1.