The Equilibrium Characteristics of Pyridoxine Hydrochloride Sorption on Clinoptilolite

被引：0

作者：

Kotova, D. L. ^{[1
]}

Gam, Fam Tkhi ^{[1
]}

Krysanova, T. A. ^{[1
]}

Vasil'eva, S. Yu. ^{[1
]}

机构：

[1] Voronezh State Univ, Univ Pl 1, Voronezh 394006, Russia

来源：

COLLOID JOURNAL | 2016年 / 78卷 / 01期

关键词：

IN-VITRO; ADSORPTION; INTERCALATION; VITAMIN-B-6; ZEOLITE; RELEASE; AREA; ACID;

D O I：

10.1134/S1061933X15060137

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Pyridoxine hydrochloride (vitamin B6) sorption by clinoptilolite from aqueous solutions has been studied at 283, 295, and 317 K. Enhancement of the sorption with decreasing temperature has been found. Isotherm of pyridoxine hydrochloride adsorption from dilute solutions may be described by the Langmuir theory. It has been shown that the monolayer coverage of clinoptilolite surface with pyridoxine occurs via the equivalent exchange with extra-framework cations of the sorbent. Thermodynamic parameters of vitamin monolayer adsorption have been determined. It has been concluded that the polymolecular adsorption is due to the formation of pyridoxine associates in the sorbent mesopores.

引用

页码：70 / 74

页数：5

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