Anisole-modified hyper-cross-linked resins for efficient adsorption of aniline from aqueous solution

The development of functionalized hyper-cross-linked resins (HCLRs) with high Brunauer-Emmett-Teller (BET) surface area (SBET) is of great importance. Herein, a kind of anisole-modified HCLRs was fabricated by two successive Friedel-Crafts reactions and it was used for the adsorption of aniline from aqueous solution. The resultant HCLRs owned high SBET and plentiful oxygen (O), with the values of 650 m2/g and 7.6 wt% respectively. The adsorption experiments indicated that the adsorption of aniline on the prepared HCLRs was efficient with the maximum capacity of 200.6 mg/g at 308 K, and both of the SBET and the introduced O were beneficial for the adsorption. Additionally, the as-prepared HCLRs had a good reusability without obvious capacity loss after five adsorption-desorption cycles.