Role of amination of a polymeric adsorbent on phenol adsorption from aqueous solution.
作者： B.C. Pan , Y. Xiong , Q. Su , A.M. Li , J.L. Chen
DOI: 10.1016/S0045-6535(03)00038-9
关键词: Aqueous solution 、 Adsorption 、 Dimethylamine 、 Sulfonic acid 、 Freundlich equation 、 Carboxylic acid 、 Aromatic acid 、 Physisorption 、 Organic chemistry 、 Chemistry
摘要: Adsorption of seven phenols, one aromatic carboxylic acid and sulfonated from aqueous solution, by a hypercrosslinked polymeric adsorbent (CHA-111) the derivative animated dimethylamine was compared. The results different adsorption isotherms indicated that amino group on matrix played significant role almost all employed compounds. For most compounds capacities increase to degree significantly for those with lower value pK(a). It may be attributed enhanced adsorbent-adsorbate interaction introduced matrix. empirical Freundlich isotherm equation interpret interaction. enthalpy change uptake phenols MCH-111 an physical because hydrogen-bonding kinetic study CHA-111 also conducted will reduce rate pore size distribution loss macroprous volume as well hydration effect surface partly.
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