Abstract
An excessive utilization of tetracycline antibiotics (TCs) in aquaculture and livestock farming significantly threatens human health and the vitality of aquatic environments. In this work, we used a one-pot hydrothermal approach with APT@MIL53-X hybrid material to achieve the selective removal of TC and OTC from agricultural wastewater. APT@MIL53-X showed significant chemical stability in the 3-10 pH range. Analysis of the adsorption results using adsorption kinetics, adsorption isotherm studies and adsorption thermodynamics indicated the presence of a monolayer physicochemical adsorption process with a maximum equilibrium adsorption of 600.43 mg g(-1) for TC (removal efficiency of 93.5%) and 537.71 mg g(-1) for OTC (removal efficiency of 91.4%). The elimination of TCs was not significantly impacted by the common buffer system of solution or the presence of water. Furthermore, a number of characterization techniques, including FT-IR and XPS, suggested that electrostatic interactions, π-π stacking, and hydrogen were potential adsorption processes. APT@MIL53-X showed stable recycling performance, maintaining a stable adsorption amount and chemical stability after six adsorption-desorption cycles of use, which proved that APT@MIL53-X has application possibilities for the agricultural wastewater treatment process. This study illustrates that APT@MIL53(Fe)-X hybrid material offers a novel method for the selective and effective elimination of agricultural wastewater.