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61,005 resultsShowing papers similar to Lignin derived hydrophobic deep eutectic solvents for the extraction of nanoplastics from water
ClearNanoplastics Extraction from Water by Hydrophobic Deep Eutectic Solvents
Researchers developed an efficient method to extract nanoplastics from water using special solvents called hydrophobic deep eutectic solvents. The best-performing solvents removed nearly all nanoplastics in a single pass, regardless of particle size. This detection and removal technique could help scientists better measure nanoplastic contamination in drinking water and potentially lead to practical water purification solutions.
Green solvent mediated extraction of micro- and nano-plastic particles from water
Researchers developed a green solvent-based extraction method for isolating micro- and nanoplastic particles from water samples, offering a lower-toxicity alternative to conventional extraction approaches for environmental plastic monitoring.
Efficient extraction of polystyrene nanoplastics from water using an ionic liquid
Researchers developed an ionic liquid-based extraction method for efficiently removing polystyrene nanoplastics from water samples. The technique achieved high recovery rates and demonstrated effectiveness for capturing particles at environmentally relevant concentrations. The study offers a promising analytical and remediation tool for addressing nanoplastic contamination in aquatic environments.
Binary solvent extraction of microplastics from a complex environmental matrix
Researchers developed a simple, low-cost method for separating microplastics from complex environmental samples such as estuarine particulate organic matter and surface water using an ethanol-water binary solvent mixture. The technique achieved 89–93% recovery across a wide range of particle sizes (30–2500 µm) and polymer types without generating hazardous waste, aligning with Green Chemistry principles. Accessible, affordable extraction methods like this are important for scaling up microplastic monitoring globally.
Adsorbing nanoplastics through high-resilience lignin–polyurethane foam
Researchers developed a lignin-infused polyurethane foam that removes nanoplastics from water using two mechanisms: physical trapping in the foam's pores and chemical bonding between the plastic particles and lignin's molecular structure. This offers a promising, plant-derived approach to filtering tiny plastic particles from contaminated water. As nanoplastics are increasingly found in drinking water sources and human tissue, materials that can capture them efficiently are an important part of the solution.
Harnessing limonene and Fenton's reagent for enhanced micro- and nanoplastic removal from aquatic systems
Researchers harnessed limonene combined with Fenton's reagent to enhance the removal of micro- and nanoplastics from aquatic environments, finding that this treatment approach effectively degrades persistent MNP contaminants that are otherwise difficult to eliminate from water systems.
Binary Solvent Extraction of Microplastics from Complex Environmental Matrix.
Researchers tested a two-solvent extraction method for isolating microplastics from complex environmental matrices. An efficient extraction technique is important for accurately detecting and quantifying microplastics in samples like sediment and biological tissue that contain many other organic and inorganic compounds.
Lignin-based activated carbon as an effective adsorbent for the removal of polystyrene nanoplastics: Insights from adsorption kinetics and equilibrium studies
Scientists created activated carbon filters from lignin, a natural plant material, that effectively removed polystyrene nanoplastics from water. The filters worked through a combination of physical trapping in tiny pores and chemical interactions between the carbon surface and plastic particles. This research demonstrates a sustainable approach to filtering the smallest and most harmful plastic particles from water, potentially reducing human exposure through drinking water.
Lignin/Poly(vinyl alcohol) Hydrogel for Detecting and Effectively Removing Microplastics
Researchers synthesized a lignin/polyvinyl alcohol hydrogel from bamboo-derived aminated lignin and showed it could effectively detect and adsorb polystyrene microplastics from water, demonstrating a biobased approach to microplastic removal.
Nature-derived hydrogel for microplastic removal
Scientists developed a nature-based hydrogel made from chitin and lignin that can remove nanoplastics from wastewater with very high efficiency, absorbing up to 1,791 milligrams of plastic per gram of material. This sustainable, reusable filter could help reduce the amount of tiny plastic particles that reach drinking water and ultimately the human body.
Lignin Utilization for the Removal of Microplastic Particles from Water
Lignin extracted from agricultural waste and municipal solid waste was tested as an adsorbent for removing various types of microplastics from wastewater, showing promising results. Using lignin — a widely available and renewable byproduct — for microplastic removal could offer a low-cost, sustainable approach to improving wastewater treatment.
Ionic Liquids as Extractants for Nanoplastics
This study proposed ionic liquids as a new class of extractants for removing nanoplastics from complex water and biological matrices. Ionic liquids could offer more efficient nanoplastic separation compared to conventional methods, enabling better quantification of nanoplastic contamination in food, water, and environmental samples.
Regeneratable lignosulfonic acid/PDADMAC polyelectrolyte-microfiltration (MF) membrane for reactive dye removal: Effects of post treatment and interference of microplastic and microfibers
Researchers developed a new membrane coating made from lignin — a natural wood compound — that can remove over 98% of reactive dyes from wastewater, far outperforming standard microfiltration membranes, while also being regenerable for reuse. The study also tested how the presence of microplastics and microfibers interferes with the membrane's filtration performance, a key real-world consideration for industrial wastewater treatment.
Conversion of PET Bottle Waste into a Terephthalic Acid-Based Metal-Organic Framework for Removing Plastic Nanoparticles from Water
Researchers found a way to turn waste PET plastic bottles into a special material (metal-organic framework) that can remove nanoplastic particles from water with up to 97% efficiency. This approach solves two problems at once: it recycles plastic bottle waste and uses the resulting material to clean plastic nanoparticles from contaminated water. The technology offers a promising circular solution for addressing both plastic waste and nanoplastic water pollution.
Development of Standardized Methods to Extract and Digest Microplastics in Environmental Samples
Researchers tested 72 combinations of chemical extraction and digestion methods to find approaches that accurately recover microplastics from environmental samples without damaging them. They found that different density separation solutions and digestion reagents can significantly alter the physical and chemical properties of certain plastic types, particularly PET and polystyrene. The study provides practical guidance for selecting methods that preserve microplastic integrity during laboratory analysis.
Chemical Recyclingof Polyethylene Terephthalate (PET)Driven by the Use of Protic Ionic Liquids: A Strategy to MitigateMicroplastic Pollution
Researchers developed a chemical recycling process for polyethylene terephthalate plastic using protic ionic liquids as green solvents, enabling depolymerization under milder conditions than conventional methods. The approach achieved high PET conversion rates and yielded recyclable monomers, offering a more sustainable alternative for addressing PET waste and associated microplastic pollution.
Eco-Friendly fabrication of nanoplastic particles and fibrils using polymer blends as templates
Researchers developed a simple, eco-friendly method to produce nanoplastic particles and fibers in the lab by blending common plastics (polyethylene, polypropylene, polystyrene) with water-soluble polyvinyl alcohol, then dissolving the outer matrix away. The technique provides well-defined nanoplastic samples that researchers need to accurately study toxicity and develop detection methods.
Removal of Nanoplastics from Copollutant Systems Using Seaweed Cellulose Nanofibers
Researchers developed biodegradable nanofibers derived from seaweed cellulose that can efficiently remove nanoplastics from contaminated water, even when other pollutants like heavy metals or dyes are present. Both positively and negatively charged versions of the nanofibers achieved high removal rates for polystyrene nanoplastics across a range of water conditions. The study presents an eco-friendly filtration material that could help address the growing challenge of nanoplastic contamination in drinking water sources.
Improving nanoplastic removal by coagulation: Impact mechanism of particle size and water chemical conditions
Researchers found that coagulation using aluminum chlorohydrate and polyacrylamide achieved up to 98.5% removal efficiency for polystyrene nanoplastics, with smaller particles being easier to remove, though humic acid in water competed for adsorption sites and reduced effectiveness.
Solvent-Based Elimination of Organic Matter from Marine-Collected Plastics
Researchers developed a solvent-based method to remove biofouling and organic matter from plastic litter collected from the marine environment before chemical analysis. Reliable protocols for cleaning marine plastics are important for accurately characterizing the types and properties of microplastics in ocean environments.
Extraction and concentration of nanoplastic particles from aqueous suspensions using functionalized magnetic nanoparticles and a magnetic flow cell
Researchers developed a method using hydrophobic magnetic nanoparticles to capture and concentrate nanoplastics — plastic particles smaller than 1 micrometer — from water samples, achieving recovery rates of 57–85% across different water types including freshwater and seawater. This technique addresses a major gap in nanoplastic research by making it possible to detect and measure these nearly invisible particles in real environmental samples.
Revivable self-assembled supramolecular biomass fibrous framework for efficient microplastic removal
Scientists developed a sustainable material made from chitin and cellulose, two natural compounds, that can efficiently remove multiple types of microplastics from water. The material can be regenerated and reused multiple times without losing effectiveness, making it a practical tool for water cleanup. This type of affordable, eco-friendly filtration technology could help reduce human exposure to microplastics in drinking water.
Micro- and nanoplastics removal from water and solid matrices: Technologies, challenges, and future perspectives
Researchers reviewed a decade of research on micro- and nanoplastic removal technologies across water and solid matrices, finding that conventional water treatment achieves over 80% microplastic removal but transfers most particles to sludge rather than degrading them, while advanced oxidation processes show strong degradation potential under controlled but not yet real-world conditions.
Polyesters and deep eutectic solvents: From synthesis through modification to depolymerization
This review examines how deep eutectic solvents, a class of greener chemical alternatives, can be used throughout the lifecycle of polyester plastics, from manufacturing to recycling. Researchers found these solvents show promise for catalyzing plastic depolymerization in closed-loop recycling systems at lower cost than traditional methods. The study is relevant to microplastic pollution because improving plastic recycling could help reduce the amount of polyester waste that breaks down into microplastics in the environment.