Batch adsorptive removal of benzoic acid from aqueous solution onto modified natural vermiculite: Kinetic, isotherm and thermodynamic studies

被引：15

作者：

Pouya, Ehsan Sadeghi ^{[1
]}

Abolghasemi, Hossein ^{[1
,2
]}

Esmaieli, Mohamad ^{[1
]}

Fatoorehchi, Hooman ^{[1
]}

Hashemi, Seyed Jalaledin ^{[1
,3
]}

Salehpour, Alireza ^{[4
]}

机构：

[1] Univ Tehran, Sch Chem Engn, Coll Engn, Ctr Separat Proc Modeling & Nanocomputat, Tehran, Iran

[2] Univ Tehran, Oil & Gas Ctr Excellence, Tehran, Iran

[3] McGill Univ, Dept Chem Engn, Pulp & Paper Res Ctr, Montreal, PQ, Canada

[4] Univ Tehran, Sch Chem Engn, Coll Engn, Instrumental Anal Lab, Tehran, Iran

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2015年 / 31卷

关键词：

Adsorption; Benzoic acid; Vermiculite; Grinding treatment; Surfactant modification; Cetyltrimethylammonium bromide; ACTIVATED CARBON CLOTH; INTRAPARTICLE DIFFUSION-PROCESSES; SURFACTANT-MODIFIED BENTONITE; METHYLENE-BLUE; WASTE-WATER; HUMIC-ACID; LEACHED VERMICULITE; MODIFIED ZEOLITE; BASIC DYE; ADSORBENT;

D O I：

10.1016/j.jiec.2015.06.024

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The performance of modified vermiculite for the batch adsorption of benzoic acid from aqueous solution was studied. Grinding treatment enhanced the ion exchange ability of natural vetmiculite. Cetyltrimethylammonium bromide improved the adsorptive characteristics of ground vermiculite better than cetylpyridinium bromide. The optimum conditions were obtained as the adsorbent dosage of 0.5 g/50 mL, initial pH of 3.5 and contact time of about 140 min. The pseudo-second-order model provided a good correlation of the kinetic data. The equilibrium data were well described by the Langmuir and Temkin equations. Thermodynamically, it was concluded that the process is endothermic and spontaneous. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：199 / 215

页数：17

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