Impact of chemical activation on the adsorption performance of common reed towards Cu(II) and Cd(II)

被引：88

作者：

Abdelnaeim, Mohamed Y. ^{[1
]}

El Sherif, Iman Y. ^{[2
]}

Attia, Amina A. ^{[3
]}

Fathy, Nady A. ^{[3
]}

El-Shahat, M. F. ^{[1
]}

机构：

[1] Ain Shams Univ, Fac Sci, Dept Chem, Cairo, Egypt

[2] Natl Res Ctr, Water Pollut Dept, Giza 12622, Egypt

[3] Natl Res Ctr, Surface Chem & Catalysis Lab, Giza 12622, Egypt

来源：

INTERNATIONAL JOURNAL OF MINERAL PROCESSING | 2016年 / 157卷

关键词：

Adsorption; Common reed; Dubinin-Radushkevich; Freundlich; Langmuir; Temkin; WASTE-WATER; CARBON; REMOVAL; IONS; ISOTHERM;

D O I：

10.1016/j.minpro.2016.09.013

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The adsorption of Cu(II) and Cd(II) from aqueous solution was studied by Common Reed (CR) activated with different concentrations of H3PO4 (PA) and,carbonized at 500 degrees C under flowing of different atmospheres (nitrogen and air). Activated carbons (ACs) obtained were characterized using FT-IR and N2 adsorption/desorption isotherm. The adsorption data were studied for adsorption isotherms of Langmuir, Freundlich, Dubinin-Radushkevich and Tempkin models. Adsorption of Cu(II) and Cd(II) was best fitted with Dubinin-Radushkevich and Tempkin adsorption isotherms. The best conditions of preparation were 30% PA in the air for Cu(II) adsorption and 50% in N2 for Cd(II)adsorption, with total surface area (SBET) of 1192.85 m(2)/g and 1181.44 m(2)/g respectively. The adsorption capacity of Cu(II) and Cd(II) were 47.00 mg/g and 83.43 mg/g respectively. The results indicated that CR could be employed as a low-cost alternative for the removal of heavy metals ions from effluents. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：80 / 88

页数：9

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