Abstract:
The removal of trace contaminants from wastewater by polybenzoxazine-based aerogel, a novel type of phenolic resin, was studied in batch experiments. The adsorption behavior of polybenzoxazine towards metals was also investigated by varying amount of adsorbent and type of metals. The results indicated that polybenzoxazine-based aerogel showed more than 80% removal of Cu (II), Fe (II), Pb (II) and Sn (IV) following order: Sn(IV) > Cu(II) > Fe(II) > Pb(II). It was found that the metal adsorption onto polyben-zoxazine-based aerogel reached equilibrium in 12 hours. Furthermore, the adsorption behavior in mixed metals system, the adsorption isotherms and the feasibility of using polybenzoxazine-based aerogel as a polymeric ligand exchanger (PLE) were investigated.
