Adsorption of naphthalene derivatives on hypercrosslinked polymeric adsorbents

Abstract

Two hypercrosslinked resins CHA-101 and CHA-111 were used as polymeric adsorbents and the behaviours against the adsorption of four naphthalene derivatives-- l-naphthol, 2-naphthol, 1-naphthylamil and 2-naphthylamine were studied. Equilibrium adsorption data were obtained and fitted to the Freundlit isotherms. Results indicated that the CHA series resins were far more superior to macroporous Amberli XAD-4 in adsorbing naphthalene derivatives, and the CHA-101 resin demonstrated the highest adsorptic capacity. The difference in the adsorption property between the hypercrosslinked resins and tl conventional macroporous resin was attributed to the large specific surface area, uniform pore structul appropriate pore size and partial polarity of the network of the hypercrosslinked resins.