Modified activated carbons with amino groups and their copper adsorption properties in aqueous solution

Mohammad Hassan Mahaninia; Paria Rahimian; Tahereh Kaghazchi

doi:10.1016/j.cjche.2014.11.004

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Modified activated carbons with amino groups and their copper adsorption properties in aqueous solution

分离科学与工程 | Updated：2026-01-06

- Modified activated carbons with amino groups and their copper adsorption properties in aqueous solution
- Chinese Journal of Chemical Engineering Vol. 23, Issue 1, Pages: 50-56(2015)
- Affiliations：
  
  1. 2 Department of Textile Engineering, Amirkabir University of Technology, Tehran,Iran
  2. 3 Department of Chemical Engineering, Amirkabir University of Technology, Tehran,Iran
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2014.11.004
  CLC：
- Published：2015
- Accepted：
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Mohammad Hassan Mahaninia, Paria Rahimian, Tahereh Kaghazchi . Modified activated carbons with amino groups and their copper adsorption properties in aqueous solution[J]. Chin.J.Chem.Eng., 2015, 23(1): 50-56.
DOI：

Mohammad Hassan Mahaninia, Paria Rahimian, Tahereh Kaghazchi . Modified activated carbons with amino groups and their copper adsorption properties in aqueous solution[J]. Chin.J.Chem.Eng., 2015, 23(1): 50-56. DOI： 10.1016/j.cjche.2014.11.004.

摘要

Abstract

Activated carbons were prepared by two chemical methods and the adsorption of Cu (II) on activated carbons from aqueous solution containing amino groups was studied. The first method involved the chlorination of activated carbon following by substitution of chloride groups with amino groups

and the second involved the nitrilation of activated carbon with reduction of nitro groups to amino groups. Resultant activated carbons were characterized in terms of porous structure

elemental analysis

FTIR spectroscopy

XPS

Boehm titration

and pH

zpc

. Kinetic and equilibrium tests were performed for copper adsorption in the batch mode. Also

adsorption mechanism and effect of pH on the adsorption of Cu (II) ions were discussed. Adsorption study shows enhanced adsorption for copper on the modified activated carbons

mainly by the presence of amino groups

and the Freundlich model is applicable for the activated carbons. It is suggested that binding of nitrogen atoms with Cu (II) ions is stronger than that with H

ions due to relatively higher divalent charge or stronger electrostatic force.

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