Sorption properties toward substituted phenolic derivatives in water usingmacroporous polyamines containing beta-cyclodextrin

Macroporous polyamines containing beta-cyclodextrin (beta-CD) are used for the recovery of various organic pollutants from aqueous solutions. Several insoluble polyamines with various degrees of beta-CD were prepared. Studies concerning the sorption kinetics, the effect of pollutant concentration, p H of the solutions, and beta-CD content are presented here. The results of sorption experiments show that these sorbents exhibit high sorption capacit ies toward substituted phenolic derivatives. The mechanism of sorption is b oth physical adsorption in the resin polymer network through acid-base inte ractions, ion exchange, and hydrogen bonding due to the amino groups and th e formation of an inclusion complex due to the beta-CD molecules through ho st-guest interactions, and hydrophobic interactions such as guest-guest int eractions. (C) 1999 John Wiley & Sons, Inc.