Adsorption of γ-picoline onto acid-activated bentonite from aqueous solution

被引：7

作者：

Rawajfih, Zahir ^{[1
]}

Nsour, Najwa ^{[2
]}

机构：

[1] Jordan Univ Sci & Technol, Dept Nat Resources & Environm, Irbid 22110, Jordan

[2] Hashemite Univ, Ctr Environm Studies, Zarqa 13115, Jordan

来源：

APPLIED CLAY SCIENCE | 2010年 / 47卷 / 3-4期

关键词：

Acid-activated bentonite; Adsorption; Isosteric heat; gamma-picoline; BAGASSE FLY-ASH; PYRIDINE-DERIVATIVES; CHLORINATED PHENOLS; AGRICULTURAL WASTE; ISOSTERIC HEAT; SORPTION; REMOVAL; CARBONS; CLAY; SAWDUST;

D O I：

10.1016/j.clay.2009.12.012

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：

The adsorption of gamma-picoline onto acid-activated bentonite was investigated. The adsorption reached a maximum at pH=7. Pseudo-first-order, pseudo-second-order, the Elovich equation, and intraparticle diffusion models were used to analyze the kinetic data obtained at different concentrations. The pseudo-second-order model was best applicable to describe the adsorption of gamma-picoline on acid-activated bentonite. The Langmuir model provided good correlation with the experimental data. The adsorption of gamma-picoline was endothermic with Delta H degrees = 29 J/mol. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：421 / 427

页数：7

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