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Citation: WANG Xiao-Mei, ZHAO Chen-Xi, LI Cheng-Yong, HUANG Yong-Ping. Adsorption of Phenol to Poly(N-methyl-N-p-vinylbenzylacetamide) from Aqueous[J]. Chinese Journal of Applied Chemistry, ;2008, 25(6): 714-717. shu

Adsorption of Phenol to Poly(N-methyl-N-p-vinylbenzylacetamide) from Aqueous

1.
Department of Bioengineering and Environmental Science, Changsha College, Changsha 410003

Corresponding author: WANG Xiao-Mei,
Received Date: 12 July 2007
Available Online: 23 November 2007
Fund Project: 长沙学院资助项目(91332) (91332)

Poly(N-methyl-N-p-vinylbenzylacetamide) resin was prepared from macroporous crosslinked chloro-methylated polystyrene by methylamination and acetylation,and in the process the chlorine content of the resin decreased from 3.95 mmol/g to 0.63 mmol/g.Adsorption isotherm of phenol onto the resin from aqua was measured,and the equilibrium data can be characterized by Freundlich isotherms.The enthalpy,free energy,and entropy for the adsorption were calculated according to thermodynamic function relationships.The adsorption enthalpy was -24.65~-71.20 kJ/mol,the adsorption free energy -4.64~-6.07 kJ/mol,and the adsorption entropy -62.35~-218.56 J/(mol·K),when the adsorption capacity was in the range of 10~40 mg/g.In addition,the adsorption mechanism of hydrogen bonding and hydrophobic interaction was discussed.This functionalized resin may be applied in the removal of phenol in the wastewater with phenolic compounds and the extraction of active components with hydrogen bonding donator of Chinese traditional and herbal drugs.
- polymeric adsorbent,
- phenol,
- adsorption thermodynamics
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