Kinetics of ion exchange of alkaline earth metal ions on, acrylamide cerium(IV) phosphate: a fibrous ion exchanger

被引：10

作者：

Varshney, KG ^{[1
]}

Gupta, PA ^{[1
]}

Tayal, N ^{[1
]}

机构：

[1] Aligarh Muslim Univ, Fac Engn & Technol, Dept Appl Chem, Aligarh 202002, Uttar Pradesh, India

来源：

COLLOIDS AND SURFACES B-BIOINTERFACES | 2003年 / 28卷 / 01期

关键词：

ion exchange; kinetics; acrylamide; cerium(IV) phosphate; fibrous ion exchanger;

D O I：

10.1016/S0927-7765(02)00117-0

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

The kinetics of Mg(II), Ca(II), Sr(II) and Ba(II) exchange with H(1) on acrylamide cerium(IV) phosphate, a fibrous inorganic ion exchanger, was studied applying the Nernst-Planck equations. The rate of exchange is found to be particle diffusion controlled at a metal ion concentration greater than or equal to 0.03 M in. aqueous medium. Various useful kinetic parameters such as self-diffusion coefficient, energy and entropy of activation have been evaluated and a correlation has been made of those parameters with the ion exchange characteristics of the material. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：11 / 16

页数：6

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