Performance of magnesium oxide-coated bentonite in removal process of copper ions from aqueous solution

被引：42

作者：

Eren, E. ^{[1
]}

Tabak, A. ^{[2
]}

Eren, B. ^{[1
]}

机构：

[1] Bilecik Univ, Fac Arts & Sci, Dept Chem, Bilecik, Turkey

[2] Rize Univ, Fac Arts & Sci, Dept Chem, Rize, Turkey

来源：

DESALINATION | 2010年 / 257卷 / 1-3期

关键词：

Bentonite; Adsorption; Thermodynamic; Clay; Cu(II); HEAVY-METAL IONS; ADSORPTION CHARACTERISTICS; MANGANESE; PB(II); CU(II); EQUILIBRIUM; LEAD(II); EXCHANGE; SORPTION; IMMOBILIZATION;

D O I：

10.1016/j.desal.2010.02.028

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This paper presents the adsorption of Cu(II) ions from aqueous solution on modified Unye bentonite. Adsorption of Cu(II) ions by magnesium oxide-coated bentonite (MCB) sample was investigated as a function of the initial Cu (II) concentration, solution pH, ionic strength, temperature and inorganic ligands (Cl-, SO42-, and HPO42-). Changes in the surfaces and structure were characterized by means of XRD and N-2 gas adsorption data. The Langmuir monolayer adsorption capacity of MCB in 0.1 M KNO3 solution was estimated as 58.44 mg/g. Delta G, Delta H and Delta S values were evaluated for MCB to be -9.50 kJ/mol (at 303 K), 43.81 kJ/mol and 175.85 J/mol K. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：163 / 169

页数：7

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