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Magnetic water cleaning
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Researchers demonstrated that rust (iron oxide) combined with nanoscience surface chemistry can effectively remove oil, nano- and microplastics, and herbicides from water using magnetic separation. This low-cost, sustainable approach could be applied for rapidly cleaning contaminated water bodies.
Abstract Hazardous water pollution caused by pure or chemically refined hydrocarbons – e.g., crude oil, nano‐ and microplastics, or herbicides – can be removed by rust. Nanoscience combined with chemical recognition motifs on surfaces enables an efficient and sustainable technique.
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Researchers developed a method for removing microplastics from water using magnetic iron oxide nanoparticles that attach to plastic surfaces, allowing the particles to be pulled out with a magnet. The technique achieved removal rates above 80% for common microplastic types in environmental water samples including river water, sewage, and seawater, suggesting a practical approach for water treatment.
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Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.