Quaternization of Porous Cellulose Beads and Their Use for Removal of Humic Acid from Aqueous Medium

Porous cellulose beads were quaternized with glycidyltrimethylammonium chloride (GTMAC) to explore a potential use of them as an adsorbent for removal humic acid (HA) from aqueous medium. The introduction quaternary ammonium groups was confirmed by FT-IR and XPS analysis. content introduced increased increase in the GTMAC concentration. adsorption capacity decrease initial pH value attained maximum at 3 groups. % dose both 3.0 6.0. process obeyed pseudo-second order kinetic model exhibited better fit Langmuir isotherm model, suggesting that HA is accomplished through electrostatic interaction between group dissociated carboxy molecule. obtained this study comparable or higher than those published other articles. loaded completely released NaOH solutions 100 mM regenerate beads. above-mentioned results clearly show prepared can be used regenerable high