Adsorption of phenolic compounds from aqueous solution onto a macroporous polymer and its aminated derivative: isotherm analysis

J Hazard Mater. 2005 May 20;121(1-3):233-41. doi: 10.1016/j.jhazmat.2004.10.027.

Abstract

Adsorption of phenolic compounds from aqueous solution to a macroporous polymeric adsorbent (CHA-111), its animated derivative (MCH-111) and a reference weakly anion exchanger (ND-900) was studied. Experimental results indicated that amino functional groups on the polymeric matrix play an important role in phenol adsorption by MCH-111 and ND-900, which was attributed to the formation of hydrogen bonding between the phenol molecule and the amino group on the polymeric matrix. The semi-empirical Freundlich isotherm equation and its reduced form were employed to interpret the adsorption behavior. A site energy distribution model based on the Polanyi adsorption potential theory can elucidate the adsorption mechanism reasonably.

Publication types

  • Evaluation Study

MeSH terms

  • Adsorption
  • Amines
  • Models, Chemical
  • Phenols / chemistry*
  • Polymers / chemistry*
  • Solutions
  • Temperature
  • Water Pollutants, Chemical / isolation & purification*
  • Water Pollution, Chemical / prevention & control*

Substances

  • Amines
  • Phenols
  • Polymers
  • Solutions
  • Water Pollutants, Chemical