KINETIC-BEHAVIOR OF ADSORPTION OF GELATIN AT SOLID-LIQUID INTERFACE

被引:18
作者
BAJPAI, AK
机构
[1] Department of Chemistry, Government Autonomous Science College, Jabalpur, Madhya Pradesh
关键词
GELATIN; ADSORPTION; SILICA; KINETICS; SOLID-LIQUID INTERFACE;
D O I
10.1002/pi.1994.210330311
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The kinetics of adsorption of gelatin from its aqueous solution on to silica has been studied at room temperature. The adsorption isotherms were found to be of the Langmuir type. From the adsorption isotherms, the adsorption coefficient, surface coverage and rate constants for adsorption and desorption were evaluated. The rate of adsorption was found to be maximum at the isoelectric point of gelatin and decreased with increase in pH of the adsorption medium. The increased ionic strength of the medium also caused an increase in the rate and amount of adsorption.
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页码:315 / 319
页数:5
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