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Microplastic pollutants in water: A comprehensive review on their remediation by adsorption using various adsorbents
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This review covers the different materials scientists are developing to filter microplastics out of water, including biochar, activated carbon, sponges, carbon nanotubes, and newer hybrid materials. Each material has trade-offs in terms of cost, effectiveness, and environmental impact, but combining different approaches shows the most promise. The research is important because better water filtration methods could directly reduce the amount of microplastics people consume through drinking water.
Microplastics (MPs), as emerging pollutants, have attracted the attention of environmentalists, statespersons, and the scientific community over the last few decades. To address the spread of MPs in the environment, it is imperative to develop various removal techniques and materials that are effective, scalable, and ecologically benign. However, to the best of our knowledge, no review has systematically examined the removal of MPs using adsorption or provided an in-depth discussion on various adsorbents. Adsorption is an inexpensive and effective technology for wastewater treatment. Recently, many researchers have conducted studies on MP remediation using diverse adsorbent materials, such as biochar, activated carbon, sponges, carbon nanotubes, metal-layered oxides, metal-organic frameworks (MOFs), and zeolites. Each adsorbent has advantages and disadvantages. To overcome their disadvantages, researchers have been designing and developing hybrid adsorbents for MP remediation. This review provides insights into these individual adsorbents and also discusses hybrid adsorbents for MP removal. Finally, the review elaborates on future possibilities and ways to enable more efficient, scalable, and environmentally friendly MP cleanup. Overall, this review bridges the gap between contemporary MP remediation using adsorption techniques and adsorbent development.
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This review summarizes how carbon-based materials like activated carbon, biochar, and carbon nanotubes can be used to remove micro and nanoplastics from water through adsorption. These materials are attractive because they are low-cost, eco-friendly, and can be modified to improve their plastic-capturing ability. Better water filtration materials could help reduce the amount of microplastics that reach people through drinking water and food preparation.
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This review evaluates the effectiveness of various adsorbent materials, including activated carbon, bioadsorbents, and advanced nanomaterials, for removing microplastics and nanoplastics from water. Researchers examined key factors like pore size, surface charge, and environmental conditions that influence removal efficiency. The study highlights the need for developing more sustainable and cost-effective adsorbent materials to tackle growing microplastic contamination in water sources.
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This review examines how carbon-based materials like biochar, activated carbon, and carbon nanotubes can filter microplastics out of wastewater. Modified versions of these materials showed high removal rates, suggesting they could help reduce the amount of microplastics that reach drinking water sources and, ultimately, the human body.
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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.