Kinetic and equilibrium studies of cobalt adsorption on apricot stone activated carbon

被引：43

作者：

Abbas, M. ^{[1
]}

Kaddour, S. ^{[2
]}

Trari, M. ^{[3
]}

机构：

[1] Univ Mhamed Bougara Boumerdes, Fac Sci, Lab Soft Technol & Biodivers LTDVPMBB, Boumerdes 35000, Algeria

[2] Fac Chem USTHB, Lab Macromol Synth & Macromol Thioorgan, Bab Ezzouar, Algeria

[3] Fac Chem USTHB, Lab Storage & Valorizat Renewable Energie, Bab Ezzouar, Algeria

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2014年 / 20卷 / 03期

关键词：

Apricot stone; Cobalt; Heavy metal removal; Kinetic; Isotherm; Activated carbon; AQUEOUS-SOLUTIONS; HEAVY-METALS; REMOVAL; IONS; MONTMORILLONITE; BIOSORPTION; WATER; ACID; DYE;

D O I：

10.1016/j.jiec.2013.06.030

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The activated carbon from apricot stone with H3PO4 and its ability to remove Co2+ are reported. The FTIR spectroscopy brings insights on interactions between the functional groups of the carbon and Co2+. Adsorption studies are carried in batch mode by varying the initial Co2+ concentration and pH. A comparison of two kinetic models on the overall adsorption rate shows that the system is described by the pseudo-second-order kinetic model. The Freundlich model fits the data with a monolayer adsorption capacity of 111.11 mg/g at pH 9. The enthalpy and free energy indicate an endothermic and not spontaneous process. (C) 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

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页码：745 / 751

页数：7

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