Selective removal of oxytetracycline from aquaculture wastewater by molecular imprinting FeCo MOF nanosheets

IF 6.7 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of water process engineering Pub Date : 2025-06-12 DOI:10.1016/j.jwpe.2025.108133

Hui Li , Long Zhou , Zuliang Chen

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引用次数: 0

Abstract

Aquaculture wastewater is contaminated with antibiotics such as oxytetracycline (OTC), which presents a serious threat to the environment and public health. In this study, FeCo MOF@MIP combining 2D bimetallic metal organic framework (MOF) with molecular imprinting technique was prepared for removing typical antibiotic-OTC from mariculture wastewater. Batch experiments indicated that the maximal capacity of adsorption of FeCo MOF@MIP to OTC was 36.9836 mg/g at 303 K, higher than that of FeCo MOF@NIP. The large number of spatial recognition sites in the blotting layer provides specific selectivity, and adsorption mechanism might be associated with the electrostatic adsorption process, hydrogen bonding and complexation among OTC and FeCo MOF@MIP. The adsorption process fits a quasi-secondary kinetic model with R² = 0.9966, suggesting that the rate of adsorption is dominated by a physical adsorption mechanism involving the sharing of electrons among the FeCo MOF@MIP and OTC. In the presence of interference, the blotting factor of FeCo MOF@MIP was 11.77, which demonstrated that the as-synthesized materials possess the excellent selectivity. Moreover, the synthesized nanosheets exhibited excellent reusability, with 16.61 mg/g OTC removal achieved using the FeCo MOF@MIP after reuse on three occasions. These findings highlighted here is the promising role of CuCo MOF nanosheets in wastewater treatment, particularly for the selective removal of antibiotics.

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分子印迹FeCo MOF纳米片选择性去除水产养殖废水中的土霉素

水产养殖废水中含有土霉素（OTC）等抗生素，对环境和公众健康构成严重威胁。本研究将2D双金属金属有机骨架（MOF）与分子印迹技术结合制备FeCo MOF@MIP，用于去除海水养殖废水中的典型抗生素otc。批量实验表明，FeCo MOF@MIP在303 K时对OTC的最大吸附量为36.9836 mg/g，高于FeCo MOF@NIP。印迹层中大量的空间识别位点提供了特定的选择性，吸附机制可能与静电吸附过程、OTC与FeCo之间的氢键和络合作用MOF@MIP有关。吸附过程符合准二级动力学模型，R2 = 0.9966，表明吸附速率以FeCo MOF@MIP和OTC之间共享电子的物理吸附机制为主。在干扰存在的情况下，FeCo MOF@MIP的印迹因子为11.77，表明合成的材料具有良好的选择性。此外，合成的纳米片具有良好的可重复使用性，使用FeCo MOF@MIP重复使用三次后，OTC去除率达到16.61 mg/g。这些发现强调了CuCo MOF纳米片在废水处理，特别是选择性去除抗生素方面的有希望的作用。

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来源期刊

Journal of water process engineering Biochemistry, Genetics and Molecular Biology-Biotechnology

CiteScore

10.70

自引率

8.60%

发文量

846

审稿时长

24 days

期刊介绍： The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies