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Recent advances in magnetic sodium alginate-based composites as the emerging adsorbents for wastewater treatment: A review
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This review examines recent advances in magnetic sodium alginate-based composite materials as adsorbents for water contaminant removal, evaluating their effectiveness for removing heavy metals, dyes, pharmaceuticals, and microplastics from aqueous systems.
Researchers are actively pursuing the development of novel adsorbents that are uncomplicated, efficient, and cost-effective for water contaminant removal. Recently, magnetic sodium alginate-based adsorbents (MSABAs), comprising sodium alginate (SA) and magnetic nanoparticles (MNPs), have attracted great attention in wastewater treatment. MSABAs possess superior mechanical properties, a loose porous structure, biodegradability, accessibility, and abundant active sites. They can exert the dual synergistic effects of SA and MNPs to efficiently target water pollutants. This work investigates the composition, fabrication techniques, and applications of MSABAs in treating wastewater treatment with contaminants such as dyes, heavy metal ions, antibiotics, oil spills, and microplastics (MPs). Moreover, the adsorption behavior and mechanisms of MSABAs on various pollutants are also introduced. Lastly, this review outlines the existing challenges and prospects for MSABAs in wastewater treatment. This review aims to provide information about MSABAs that can not only serve as a valuable reference but also ignite a spark of knowledge among researchers and promote their widespread adoption in engineering applications.
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This review examines emerging micropollutants including microplastics, PFAS, and pharmaceuticals in aquatic environments, and evaluates magnetic nanotechnology-based adsorption as a removal strategy. The study highlights that metal and metal oxide nanomaterials offer a cost-effective alternative to traditional wastewater treatment methods, though more research is needed on scalability and long-term environmental safety.
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Tiny plastic particles called microplastics have made their way into our water, food, and even our bodies, raising concerns about long-term health effects. This review rounds up existing research on a promising cleanup method: using specially designed magnetic materials that attract and stick to microplastics, then can be pulled out of water with a magnet. While this technology is still being developed and tested, it could one day offer a practical way to filter these harmful particles out of our drinking water and environment.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.