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Ultrahigh-efficiency and synchronous removal of microplastics-tetracycline composite pollutants via S-scheme core-shell magnetic nanosphere
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Researchers developed a novel magnetic nanosphere photocatalyst that simultaneously removes both microplastics and the antibiotic tetracycline from water with over 96% efficiency. The S-scheme core-shell design enhances photocatalytic performance and allows easy magnetic recovery and reuse of the catalyst. The study demonstrates a promising approach for tackling composite pollution scenarios where microplastics and antibiotics co-occur in aquatic environments.
Composite pollution in aquatic environments has become a critical challenge, with emerging pollutants like antibiotics and microplastics (MPs) posing significant ecological risks. The interaction between antibiotics and MPs complicates treatment processes and underscores the need for targeted removal strategies. This study focused on a novel S-scheme core-shell magnetic nanosphere, FeO@TiO-CN, combining TiO and CN to form a heterojunction that enhances photocatalytic performance. The S-scheme heterojunction improves redox ability, enabling efficient degradation of composite pollutants under light irradiation. After 12 h reaction, FeO@TiO-CN achieved 97.3 % removal for polyethylene (PE) MPs and 96.0 % removal for tetracycline (TC), surpassing existing TiO-based catalysts. Moreover, FeO@TiO-CN demonstrated excellent magnetic recyclability rate of 77.07 %, enabling easy catalyst recovery and reuse. Meanwhile, FeO@TiO-CN outstands on TC removal at an optimal concentration (200 mg L). Notably, MPs in composite pollution scenarios showed higher removal rates than individual pollutants. This study highlights the powerful role of FeO@TiO-CN as a promising photocatalyst for the joint degradation of multiple composite pollutants in aquatic environment, providing an innovative solution for addressing water pollution challenges. Furthermore, its real-world application potential is demonstrated by its efficient recovery, long-term stability, and compatibility with existing water treatment systems, paving the way for large-scale environmental remediation technologies.
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Magneto-Photothermal Synergistic Hydrophobicity Nanoplatform for Efficient Enrichment and Ultrasensitive Detection of Micro-Nanoplastics
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Researchers developed a hydrophobic magnetic nanoplatform that integrates multiple functions, achieving microplastic removal efficiencies of 93.8% for larger particles and 87.2% for nanoplastics in ultrapure water, while also enabling ultrasensitive detection of the captured particles.
Magneto-PhotothermalSynergistic Hydrophobicity Nanoplatformfor Efficient Enrichment and Ultrasensitive Detection of Micro-Nanoplastics
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Researchers developed a hydrophobic magnetic nanoplatform that integrates multiple functions, achieving microplastic removal efficiencies of 93.8% for larger particles and 87.2% for nanoplastics in ultrapure water, while also enabling ultrasensitive detection of the captured particles.
Nanophotocatalytic synergistic degradation of antibiotics and microplastics: Mechanisms, material design, and environmental applications
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This review examines how microplastics and antibiotics interact in water during photocatalytic treatment, finding that microplastics can both help (by shuttling electrons) and hinder (by shielding light or hosting biofilms) the degradation process, depending on conditions. Aged microplastics — which have more surface oxygen groups — adsorb more antibiotics, making them tougher composite targets for treatment systems. Understanding these interactions is essential for designing water purification systems that can handle the combined pollution reality of modern waterways.
Magnetic polymeric composites: potential for separating and degrading micro/nano plastics
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Researchers reviewed how magnetic composite materials can be used to attract, capture, and chemically break down microplastics and nanoplastics in wastewater, finding that combining magnetic separation with advanced oxidation or photocatalysis offers one of the most promising approaches for removing these persistent plastic pollutants from water.
Insight into the effect of microplastics on photocatalytic degradation tetracycline by a dissolvable semiconductor-organic framework
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Researchers investigated how polystyrene microplastics affect the photocatalytic degradation of the antibiotic tetracycline using a novel semiconductor-organic framework catalyst. They found that small amounts of microplastics actually promoted tetracycline breakdown but also altered the degradation products and pathways. The study reveals that microplastics can interfere with water treatment processes in unexpected ways, both helping and hindering pollutant removal depending on conditions.
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