Papers

61,006 results
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Article Tier 2

Enhanced polystyrene nanoplastic removal by CTAB-modified magnetic biochar: Adsorption performance and mechanisms

Researchers engineered a CTAB-modified magnetic biochar adsorbent that removes polystyrene nanoplastics with a maximum capacity of 234 mg/g — more than double unmodified biochar — through electrostatic attraction, hydrophobic interactions, and iron oxide surface complexation, while also being easily retrievable with a magnet.

2026 Journal of Environmental Management
Article Tier 2

Removal of nanoplastics from aqueous solution by aggregation using reusable magnetic biochar modified with cetyltrimethylammonium bromide

CTAB-modified magnetic biochar was synthesized and found to efficiently remove polystyrene nanoplastics from water through electrostatic attraction, with the magnetic component enabling easy separation and reuse across multiple cycles. The composite offers a practical and low-cost approach for nanoplastic remediation from contaminated water.

2022 Environmental Pollution 76 citations
Article Tier 2

Enhanced removal of aged and differently functionalized polystyrene nanoplastics using ball-milled magnetic pinewood biochars

Researchers developed magnetic biochars from pinewood using ball-milling with iron oxide nanoparticles, achieving highly effective removal of various functionalized and aged polystyrene nanoplastics from water with easy magnetic separation and reusability.

2022 Environmental Pollution 91 citations
Article Tier 2

Efficient removal of microplastics from aqueous solution by a novel magnetic biochar: performance, mechanism, and reusability

Researchers developed a magnetic biochar from rice husks that achieved 99.96% removal of microplastics from water, with the material showing excellent reusability and performance under various environmental conditions.

2022 Environmental Science and Pollution Research 90 citations
Article Tier 2

Efficiency of adsorption of PSNPs using spontaneous magnetic biochar prepared from pyrolysis of municipal sludge and industrial red mud solid waste

Researchers prepared a spontaneous magnetic biochar from municipal sludge and industrial red mud waste to remove polystyrene nanoplastics from water. The material achieved a 97.87% removal rate within 30 minutes, with electrostatic interactions identified as the primary adsorption mechanism. The magnetic properties of the biochar enabled easy solid-liquid separation without filtration, offering a practical approach for nanoplastic remediation using waste-derived materials.

2025 Journal of Chemical Technology & Biotechnology 7 citations
Article Tier 2

Adsorption and thermal degradation of microplastics from aqueous solutions by Mg/Zn modified magnetic biochars

Researchers developed magnesium- and zinc-modified magnetic biochars that achieved over 94% removal efficiency for polystyrene microplastics from water, with performance enhanced by the metal modifications. The modified biochars also showed effectiveness in thermally degrading the captured microplastics, offering a potential two-step approach for microplastic removal and destruction in water treatment.

2021 Journal of Hazardous Materials 471 citations