Adsorption behavior of surface ion-imprinted poly(allylamine)-silica material for Cu(II) from aqueous solution
[1]FAN Zhonglei,Ll Ruirui.Adsorption behavior of surface ion-imprinted poly(allylamine)-silica material for Cu(II) from aqueous solution[J].Journal of Zhengzhou University (Engineering Science),2015,36(06):30-.[doi:10.3969/j. issn.1671 -6833.2015.06.006]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
36卷
Number of periods:
2015 06
Page number:
30-
Column:
Public date:
2015-12-25
- Title:
- Adsorption behavior of surface ion-imprinted poly(allylamine)-silica material for Cu(II) from aqueous solution
- Keywords:
- poly( allylamine) ; silica gel; surface imprinting; Cu(II )
- CLC:
- -
- DOI:
- 10.3969/j. issn.1671 -6833.2015.06.006
- Abstract:
- Surface ion-imprinted poly( allylamine) -silica material ( IIP-PAA/SiO,) was synthesized by physi-cal load and surface imprinting technique. The thermodynamics，kinetics and selectivity of Cu( II) adsorptionon lIPPAA/SiO, were studied by static methods. The results showed that the adsorption capacity and selectiv-ity of lIP-PAA/SiO,decreased with the increase of the temperature. lIts adsorption equilibrium data for Cu( I)could be fit well by the Langmuir model. ’The adsorption thermodynamic parameters calculated showed that itsenthalpy change H° was - 12.29 kJ·moL"’ and △Gwas among - 16.5 kJ· moL’and - 17.05 kJ·moL"’, which indicated that the adsorption was exothermic spontaneous process and increasing temperaturewas not conducive to Cu( l) adsorption. Adsorption kinetics data of Cu( lI) on llP-PAA/SiO,could be de-scribed by pseudo-second-order kinetics equation，and the fitting adsorption rate constant and balanced copperadsorption capacity were related to initial solution concentration.
- References:
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