Adsorption of heavy metal ions from aqueous solutions by activated carbon prepared from apricot stone

被引：717

作者：

Kobya, M

Demirbas, E ^{[1
]}

Senturk, E

Ince, M

机构：

[1] Gebze Inst Technol, Dept Chem, TR-41400 Gebze, Turkey

[2] Gebze Inst Technol, Dept Environm Engn, TR-41400 Gebze, Turkey

来源：

BIORESOURCE TECHNOLOGY | 2005年 / 96卷 / 13期

关键词：

apricot stone; adsorption; heavy metals; aqueous solution; pH;

D O I：

10.1016/j.biortech.2004.12.005

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Apricot stones were carbonised and activated after treatment with sulphuric acid (1:1) at 200 degrees C for 24 h. The ability of the activated carbon to remove Ni(II), Co(II), Cd(II), Cu(II), Pb(II), Cr(III) and Cr(VI) ions from aqueous solutions by adsorption was investigated. Batch adsorption experiments were conducted to observe the effect of pH (1-6) on the activated carbon. The adsorptions of these metals were found to be dependent on solution pH. Highest adsorption occurred at 1-2 for Cr(VI) and 3-6 for the rest of the metal ions, respectively. Adsorption capacities for the metal ions were obtained in the descending order of Cr(VI) > Cd(II) > Co(II) > Cr(III) > Ni(II) > Cu(II) > Pb(II) for the activated carbon prepared from apricot stone (ASAC). (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1518 / 1521

页数：4

共 19 条

[1] Adsorption studies on rice husk: removal and recovery of Cd(II) from wastewater [J].