A novel hyper-cross-linked polymeric adsorbent with high microporous surface area and its adsorption to theophylline from aqueous solution

It has been reported that 1,120,000 tons of TP mother liquor are to be recovered in the factory of an annual output of 1000 tons of caffeine. In view of the character of the planar arrangement and the small molecular size of theophylline, GQ-06 with micropore surface area 1222.77 m2/g and specific bimodal pore size distribution was synthesized to explore its application of adsorption for theophylline in aqueous solution. The adsorption capacity of theophylline followed the order XAD-4 < NDA-88 < H103