Efficient removal of antibiotics from aqueous solution is of fundamental importance due to the increasingly severe antibiotic-related pollution. Herein, a high-performance Fe-ZIF-8-500 adsorbent was synthesized by Fe-doping strategy and subsequent activation with high-temperature. In order to evaluate the feasibility of Fe-ZIF-8-500 as an adsorbent for TC removal, the adsorption properties of Fe-ZIF-8-500 were systematically explored. The results showed that the Fe-ZIF-8-500 exhibited ultrahigh adsorption capacity for tetracycline (TC) with a record-high value of 867 mg g^-1. Additionally, the adsorption kinetics and isotherms for TC onto the Fe-ZIF-8-500 can be well-fitted by the pseudo-second-order kinetics model and the Freundlich model, respectively. The ultrahigh adsorption capacity of Fe-ZIF-8-500 can be explained by the synergistic effect of multi-affinities, i.e., surface complexation, electrostatic attraction, π-π interaction and hydrogen bonding. After being used for four cycles the adsorption capacity of Fe-ZIF-8-500 remains a high level, demonstrating its outstanding reusability. The ultrahigh adsorption capacity, excellent reusability, satisfactory water stability and easy-preparation nature of Fe-ZIF-8-500 highlight its bright prospect for removing tetracycline pollutant from wastewater.

由于与抗生素相关的污染日益严重，从水溶液中有效去除抗生素至关重要。在此，通过 Fe 掺杂策略和随后的高温活化合成了一种高性能的 Fe-ZIF-8-500 吸附剂。为了评估 Fe-ZIF-8-500 作为吸附剂去除 TC 的可行性，系统研究了 Fe-ZIF-8-500 的吸附性能。结果表明，Fe-ZIF-8-500 对四环素 (TC) 表现出超高的吸附能力，达到了创纪录的 867  mg  g ^-1. 此外，TC 在 Fe-ZIF-8-500 上的吸附动力学和等温线可以分别通过伪二级动力学模型和 Freundlich 模型拟合。Fe-ZIF-8-500 的超高吸附能力可以用多亲和力的协同效应来解释，即表面络合、静电引力、π-π 相互作用和氢键。Fe-ZIF-8-500 使用四次循环后，吸附能力仍保持较高水平，显示出其出色的可重复使用性。Fe-ZIF-8-500 超高的吸附能力、优异的重复使用性、令人满意的水稳定性和易于制备的性质突显了其去除废水中四环素污染物的广阔前景。