Bismuth-coated manganese hexaferrite nanoparticles as solar-activated photocatalysts for degradation of tetracycline and inactivation of antibiotic-resistant bacteria

IF 6.6 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of water process engineering Pub Date : 2026-03-01 Epub Date: 2026-01-27 DOI:10.1016/j.jwpe.2026.109560

Mahdi Kargar , Amir Hossein Hamidian , Negin Nasseh , Masoud Yousefi

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Abstract

This study investigates the solar-driven photocatalytic performance of a MnFe₁₂O₁₉/BiOI magnetic nanocomposite for tetracycline (TC) degradation and antibiotic-resistant bacteria (ARB) inactivation under simulated sunlight irradiation. The nanocomposite was synthesized and characterized using XRD, EDX, FTIR, FESEM, TEM, BET, and DRS confirming its successful formation and favorable structural properties. The MnFe₁₂O₁₉/BiOI nanocomposite exhibited significantly enhanced photocatalytic activity compared with its individual components, achieving complete TC degradation and effective inactivation of Klebsiella pneumoniae and methicillin-resistant Staphylococcus aureus. Furthermore, mineralization studies showed significant reductions in TOC and COD, indicating effective oxidation of organic pollutants. The catalyst also demonstrated good stability, maintaining high performance over multiple reuse cycles. Overall, these results highlight MnFe₁₂O₁₉/BiOI as an efficient, reusable, and magnetically separable photocatalyst with strong potential for advanced wastewater treatment applications.

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铋包覆的六铁酸锰纳米颗粒作为四环素降解和耐药细菌灭活的光催化剂

本研究研究了MnFe12O19/BiOI磁性纳米复合材料在模拟阳光照射下对四环素（TC）降解和耐药细菌（ARB）灭活的光催化性能。通过XRD、EDX、FTIR、FESEM、TEM、BET、DRS等手段对合成的纳米复合材料进行了表征，证实了其成功形成和良好的结构性能。与单个组分相比，MnFe12O19/BiOI纳米复合材料表现出显著增强的光催化活性，实现了对肺炎克雷伯菌和耐甲氧西林金黄色葡萄球菌的完全降解和有效灭活。此外，矿化研究表明TOC和COD显著降低，表明有机污染物的有效氧化。催化剂也表现出良好的稳定性，在多次重复使用循环中保持高性能。总的来说，这些结果突出了MnFe12O19/BiOI作为一种高效、可重复使用、可磁分离的光催化剂，在高级废水处理应用中具有很强的潜力。

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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