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Citation: MENG Guan-Hua, OU Cheng-Hui, TAO Dong-Min, LIU Bao-He. Adsorption of Copper Ions on a Chelating Adsorption Resin Containing Amino Acid[J]. Chinese Journal of Applied Chemistry, ;2009, 26(6): 1450-1455. shu

Adsorption of Copper Ions on a Chelating Adsorption Resin Containing Amino Acid

1.
School of Civil Engineering & Architecture, Anhui University of Technology, Ma'anshan 243002

Corresponding author: MENG Guan-Hua,
Received Date: 3 December 2008
Available Online: 18 April 2009
Fund Project: 安徽省教育厅自然科学研究项目(KJ2007B167) (KJ2007B167)

An adsorption resin modified by L-tyrosine acid,AJS-02,was synthesized,and its adsorption-desorption performance for Cu²⁺ was compared with that of NDA-150.The equilibrium adsorption data were fitted to Langmuir isotherm and the adsorption capacity for AJS-02 was higher than that of NDA-150,which may be attributed to the polar groups in the network of AJS-02.The adsorption of Cu²⁺ to AJS-02 involved physisorption and chemisorption.Kinetic analysis shows that the adsorption rate was mainly governed by the film diffusion.Dynamic adsorption and desorption studies for Cu²⁺ to AJS-02 show that the breakthrough adsorption capacity and the total adsorption capacity were 4.05×10^-3 and 6.44×10^-3 moles per liliter resin,respectively.Above 90% regeneration efficiency for the adsorbent was achieved by the desorption of 5% hydrochloric acid.
- AJS-02,
- NDA-150 resin,
- Cu²⁺,
- adsorption,
- desorption
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