Abstract
A novel bimetallic metal–organic gel (JLUE-MOG-Fe/Y) was fabricated through solvothermal method and employed for adsorptive removal of chlortetracycline hydrochloride (CTC) from aqueous solution. JLUE-MOG-Fe/Y, with outstanding stability, wide adaptability and excellent recyclability, showed strong CTC adsorption capacity as high as 584.83 mg·g−1 at 25 °C. The process of CTC adsorption on JLUE-MOG-Fe/Y was exothermic and spontaneous, and fitted well with the pseudo-second-order kinetic model and Freundlich isotherm model. Based on the adsorption experiments and characterization results, pore filling, coordination bonds, electrostatic interactions, π-π interactions, hydrogen bonds and hydrophilic/hydrophobic interaction participated in the adsorption process.
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