ARSENIC SORPTION USING MIXTURES OF ION EXCHANGE RESINS CONTAINING N-METHYL-D-GLUCAMINE AND QUATERNARY AMMONIUM GROUPS

WOS: 000378145500001The method of synthesis and the arsenic removal properties of ion-exchange resins based on N-methyl-D-glucamine and trimethylammonium groups are presented. The N-methyl-D-glucamine based monomer was synthesized by the reaction of 4-vinyl benzyl chloride with N-methyl-D-glucamine, along with the use of N, N-methylene-bis-acrylamide as a crosslinker reagent for polymerization. In addition, poly(4-vinylbenzyl) trimethylammonium was synthesized. Arsenate sorption studies were conducted and the pH effect, kinetics, sorption capacity, and elution performance were studied. The experimental data were fitted to kinetic models, such as the pseudo-first order and pseudo-second order models. The pseudo-second order model exhibited the best correlation with the experimental data. The Langmuir and Freundlich isotherms were fitted to the experimental data, and the Freundlich isotherm exhibited the best fit.7FP-MC Actions Grant CHILTURPOL2 (PIRSES-GA Project) [269153]; FONDECYTComision Nacional de Investigacion Cientifica y Tecnologica (CONICYT)CONICYT FONDECYT [1110079]; PIA [Anillo ACT 130]; Grant CONICYT-CNRS; REDOC (MINEDUC Project) [UCO1202]; CIPA CONICYT Regional Project [R08C1002]The authors thank the 7FP-MC Actions Grant CHILTURPOL2 (PIRSES-GA-2009 Project, grant number: 269153), FONDECYT (Grant No 1110079), PIA (Anillo ACT 130), Grant CONICYT-CNRS, and REDOC (MINEDUC Project UCO1202 at U. de Concepcion). B.F. Urbano thanks FONDECYT Initiation 11121291 and CIPA CONICYT Regional Project R08C1002