In order to alleviate the pressure on the ecological environment and human health caused by wastewater of nitroimidazole antibiotics and poly(ethylene terephthalate) (PET) plastic waste, we propose a strategy of using defective MIL-68(Al) (d-MIL-68(Al)) derived from waste PET plastic for dimetridazole (DMZ) capture. The resulting d-MIL-68(Al) exhibits an excellent adsorption capacity of 555.6 mg g⁻¹, which is three times of pristine MIL-68(Al) (181.8 mg g⁻¹), demonstrating that the defective structures in d-MIL-68(Al) play a crucial role in the adsorption process. Remarkably, d-MIL-68(Al) can remove nearly 97% of DMZ in the first 10 s, and the removal efficiency reached 99% after adsorption equilibrium, affording a record kinetic rate constant k₂ (2.84 g mg⁻¹ min⁻¹). In short, d-MIL-68(Al) possesses both an ultrafast adsorption rate and outstanding adsorption capacity toward DMZ compared with reported adsorbents. Mechanism analysis reveals that the excellent DMZ adsorption performances can be ascribed to the abundant active sites caused by defective structures, as well as the π-π stacking and hydrogen bonding interactions between MOF and DMZ. Hence, d-MIL-68(Al) derived from waste PET plastic is an efficient porous adsorbent for rapid DMZ removal, which not only possesses great potential for wastewater treatment, but also reduces the harmful PET plastic waste, reflecting the concept of sustainable development.

为了缓解硝基咪唑抗生素废水和聚对苯二甲酸乙二醇酯（PET）塑料废弃物对生态环境和人类健康造成的压力，我们提出了利用缺陷MIL-68(Al)（ d -MIL-68）的策略(Al)) 从废 PET 塑料中提取，用于捕获二甲硝唑 (DMZ)。所得的d -MIL-68(Al)表现出优异的吸附容量，达到555.6 mg g ^{-1 ，是原始MIL-68(Al) (181.8 mg g -1} )的三倍，表明d -MIL -68(Al)中的缺陷结构MIL-68(Al)在吸附过程中起着至关重要的作用。值得注意的是，d -MIL-68(Al)在前10 s内可以去除近97%的DMZ，并且吸附平衡后去除效率达到99%，提供了创纪录的动力学速率常数k 2 (2.84 _g mg ⁻¹  min ^{− 1}）。简而言之，与报道的吸附剂相比， d -MIL-68(Al)对DMZ具有超快的吸附速率和出色的吸附能力。机理分析表明，优异的DMZ吸附性能可归因于缺陷结构导致的丰富的活性位点，以及MOF和DMZ之间的π-π堆积和氢键相互作用。因此，从废PET塑料中提取的d -MIL-68(Al)是一种快速去除DMZ的高效多孔吸附剂，不仅在废水处理方面具有巨大的潜力，而且可以减少有害的PET塑料废弃物，体现了可持续发展的理念。