초록 |
Gum polysaccharides are one of the most abundant bio-based polymers. This study demonstrates the synthesis of locust bean gum-cl-poly(acrylonitrile) based hydrogel were obtained using acrylonitrile monomer, MBA as crosslinker and APS as initiator by involving free radical co-polymerization and crosslinking reaction technique. The factors influencing the adsorption capacities, including the initial concentrations of dye solutions, contact time, initial pH values and dosage of the adsorbent as well as ionic strength of the solution are discussed. The locust bean gum-cl-poly(acrylonitrile) based hydrogel was found to be pH sensitive. The kinetics studies show that the adsorption of the dye fitted a pseudo-second-order equation. |