▎ 摘　　要

A multifunctional aerogel (zirconium-2-imidizalodinethione-reduced graphene oxide aerogel, Zr-IMDT/rGOA) is synthesized by functionalizing graphene oxide with ZrCl4 and 2-imidazolidinethione through one-pot hydrothermal reduction and subsequent freeze drying. The aerogel is employed for the removal of anionic pollutants. Zr-IMDT/rGOA shows good removal performance for both fluoride ions (F-) and anionic dyes (Alizarin Red S (ARS) and Eosin Y (EY)). The removal efficiency of F- is 97.96% at pH 4.6, time 30 min, an initial concentration of 10 mg L-1, and an adsorbent dosage of 0.01 g as optimized by the Box Behnken Design in response surface methodology. . Brouers-Sotolongo isotherm model fits well with the equilibrium sorption data and maximum sorption capacity (Q(max)) of 328.28, 694.00, and 1449.28 mg g(-1) is obtained for F-, ARS, and EY, respectively. Fractal-like pseudo-second-order kinetic model is best suited to the kinetic data and >50% removal is attained for all analytes within 5 min indicating fairly fast kinetics. Zr-IMDT/rGOA shows good selectivity for F- in the presence of counter ions (Cl-, NO3-, SO42-, HCO3-, and H2PO4-) and could be regenerated up to five cycles with >90% removal. The synthesized aerogel is successfully applied to remove F- from groundwater, river water, and tea infusion.