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

被引：63

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

页码：745 / 751

页数：7

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