Studies on Sorption Isotherm Models of Ion Exchange Modified Acrylic Fibers

被引：12

作者：

Zargaran, Mojdeh ^{[1
]}

Shoushtari, Ahmad M. ^{[2
]}

Abdouss, Majid ^{[3
]}

机构：

[1] BHRC, Polymer Dept, Tehran 131451696, Iran

[2] Amir Kabir Univ Technol, Dept Text Engn, Tehran, Iran

[3] Amir Kabir Univ Technol, Chem Grp, Tehran, Iran

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2010年 / 118卷 / 01期

关键词：

ion exchange fiber; sorption isotherm; heavy metal ions; acrylic fibers; sorption behavior; DILUTE AQUEOUS-SOLUTIONS; ACTIVATED CARBON; ORGANIC SOLUTES; ADSORPTION; THERMODYNAMICS; EQUILIBRIUM; BIOSORPTION; PARAMETERS; KINETICS;

D O I：

10.1002/app.32337

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 sorption behavior, favorability, shape and thermodynamic parameters of Cu(II), Ni(II), Pb(II), and Fe(III) ions sorption onto the ion exchage acrylic fiber were studied by applying Langmuir, Freundlich, Dubinin-Radushkevich and Redlich Peterson models. Analytical studies from sorption isotherms proved that sorption process follows mono layer adsorption mechanism. Gibbs free energy was spontaneous for all interactions. The adsorption processes all exhibited endothermic enthalpy values and were accompanied by increasing in entropy. The activation energies for the sorption of metal ions on aminated acrylic fiber were at the same order of magnitude as the activation energy of ion exchange. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 118: 135-142, 2010

引用

页码：135 / 142

页数：8

共 28 条

[1] Kinetics, isotherm and thermodynamics for Cr(III) and Cr(VI) adsorption from aqueous solutions by crystalline hydrous titanium oxide [J].