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61,005 resultsShowing papers similar to Effective removal of nanoplastics from water by cellulose/MgAl layered double hydroxides composite beads
ClearCellulose nanofibril-loaded filter paper for highly efficient removal of microplastics via multiscale capture mechanisms
Researchers fabricated a cellulose nanofibril-loaded filter paper composite and found it achieved over 93% removal efficiency for polystyrene, polypropylene, and PET microplastics through a combination of physical interception, electrostatic interactions, and hydrogen bonding.
Phase transition of Mg/Al-flocs to Mg/Al-layered double hydroxides during flocculation and polystyrene nanoplastics removal
Researchers investigated how magnesium-aluminum layered double hydroxide flocs remove polystyrene nanoplastics from water, finding that electrostatic adsorption and intermolecular forces drive capture efficiency above 90%, with pH-dependent crystal formation playing a key role in the removal mechanism.
Application of Zn/Al layered double hydroxides for the removal of nano-scale plastic debris from aqueous systems
Researchers demonstrated that zinc-aluminum layered double hydroxide (LDH) can efficiently adsorb nanoscale plastic debris from freshwater, achieving removal capacities exceeding 160 mg/g in deionized water, though performance dropped significantly under alkaline conditions and in the presence of competing ions like sulfate and phosphate — establishing LDH as a promising but condition-sensitive adsorbent for nanoplastic remediation.
Removing micro- and nanoplastics (MNPs) from water via novel composite adsorbents: A review
Researchers reviewed advances in composite materials — including carbon-based, magnetic, and metal-organic framework (MOF) materials — designed to adsorb and remove micro- and nanoplastics from water, finding that each type offers performance advantages over traditional adsorbents but also faces challenges around cost, scalability, and environmental safety. The review calls for future materials that are stable, sustainable, and practical for large-scale water treatment.
Removal of polystyrene nanoparticles using MgAl layered double hydroxide membranes synthesized on aluminum plates
Researchers synthesized magnesium-aluminum layered double hydroxide (LDH) membranes on aluminum plates in just 10 minutes and tested them for removing nanoplastic particles from water, finding strong adsorption of both 100 nm and 1 micrometer polystyrene nanoparticles. The easy-to-make, sheet-like membranes offer a simple and scalable approach to filtering nanoplastics from drinking water and other water sources.
Towards sustainable microplastic cleanup: Al/Fe ionotropic chitosan hydrogels for efficient PET removal
Researchers developed chitosan-based hydrogel beads modified with aluminum and iron for removing PET microplastics from water. The aluminum-modified beads showed the best performance, achieving high microplastic removal efficiency through electrostatic interactions with the plastic particles. The study suggests that these sustainable, bio-based adsorbents could offer an effective and environmentally friendly approach to cleaning microplastic-contaminated water.
A layer-by-layer assembled superhydrophobic composite aerogel for rapid and high-capacity removal of microplastics from beverages
A superhydrophobic composite aerogel was synthesized using a layer-by-layer strategy combining an "egg-box" cellulose nanofiber network with silicone polymers, achieving an impressive polystyrene microplastic adsorption capacity of 555.5 mg/g within 100 minutes—driven primarily by hydrophobic interactions—and demonstrating high stability and reusability for microplastic removal from beverages.
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.
Sedimentation of nanoplastics from water with Ca/Al dual flocculants: Characterization, interface reaction, effects of pH and ion ratios
Researchers investigated the use of calcium-aluminum dual flocculants to remove nanoplastics from water, characterizing the sedimentation process and finding that pH and ion ratios significantly influenced flocculation efficiency through interface reactions at the nanoplastic surface.
Tailored cellulose-based flocculants for microplastics removal: Mechanistic insights, pH influence, and efficiency optimization
Researchers developed plant-derived (cellulose-based) flocculants that clump microplastics together so they can be more easily removed from water, finding that a low concentration of 0.001 g/mL was optimal and that both electrical charge and water-repelling interactions drive the process depending on the type of plastic.
Efficiency and mechanism of micro- and nano-plastic removal with polymeric Al-Fe bimetallic coagulants: Role of Fe addition
Researchers investigated polymeric Al-Fe bimetallic coagulants for removing micro- and nanoplastics from drinking water, finding that iron addition enhanced nanoplastic removal efficiency through improved charge neutralization and floc formation mechanisms.
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.
Nanoplastics Removal from Water using Metal–Organic Framework: Investigation of Adsorption Mechanisms, Kinetics, and Effective Environmental Parameters
Researchers developed a metal-organic framework material that can remove 96% of nanoplastics from water through an adsorption process. The material works by attracting the negatively charged nanoplastic particles to its surface through electrostatic forces and can be regenerated for repeated use. This technology could provide a practical solution for removing the tiniest and most dangerous plastic particles from drinking water.
Development of a hybrid filter media for microplastic removal from wastewater
Researchers developed hybrid glass fiber filter media incorporating glass and electrospun polymer nanofibers—both blended into the matrix and applied as surface layers—to improve microplastic removal efficiency from wastewater compared to standard filtration media.
Coagulation properties of magnetic magnesium hydroxide for removal of microplastics in the presence of kaolin and humic acid
A magnetic magnesium hydroxide coagulant was prepared and combined with a polymer flocculant to remove polyethylene microplastics from water, achieving 87.1% removal efficiency. The magnetic component allowed easy post-treatment separation, and the presence of kaolin and humic acid in the water affected removal performance.
Treatment processes for microplastics and nanoplastics in waters: State-of-the-art review
This review summarized established and emerging treatment processes for removing microplastics and nanoplastics from drinking water and wastewater, evaluating coagulation, membrane filtration, advanced oxidation, and biological treatment in terms of removal efficiency and operational feasibility.
Efficient Removal of Polyethylene UsingMagnesium Hydroxide and AnionicPolyacrylamide as Dual-Coagulant byCoagulation-Flocculation Processes
Researchers investigated the removal of polyethylene microplastics from simulated natural water using magnesium hydroxide and anionic polyacrylamide as dual coagulants, finding optimal conditions at 40 mg/L Mg2+, pH 12, and 20°C, achieving high removal efficiency via coagulation-flocculation.
Polydopamine-modified sodium alginate hydrogel for microplastics removal: Adsorption performance, characteristics, and kinetics
Scientists created a hydrogel made from seaweed-based sodium alginate coated with polydopamine that can remove up to 99.6% of microplastics from drinking water. The hydrogel works regardless of the microplastics' size or surface charge, and it can be reused multiple times, making it a promising low-cost tool for reducing microplastic exposure through tap water.
Removal of polystyrene nanoplastics from aqueous solutions by a novel magnetic zeolite adsorbent
Researchers synthesized a magnetic zeolite adsorbent using co-precipitation and tested it for removal of polystyrene nanoplastics from water, achieving a maximum adsorption capacity of 34.2 milligrams per gram. Iron oxide functional groups on the zeolite surface drove nanoplastic capture via electrostatic attraction, complexation, and pi-pi conjugation, and the material could be magnetically separated for reuse.
Enhancing nano and microplastics destabilization: Synergistic effects of natural mucin and conventional coagulants in water and wastewater treatment
Researchers investigated whether combining jellyfish mucus with conventional water treatment coagulants could improve removal of micro- and nanoplastics from water. The synergistic combination achieved over 90% removal efficiency with settling times under 5 minutes, outperforming either agent alone by leveraging bridging and entrapment mechanisms.
Investigating the Potential of Coagulants to Improve Microplastics Removal in Wastewater and Tap Water
Researchers found that adding coagulants (FeCl3 or Al2(SO4)3) to wastewater and tap water improved microplastic removal, with aluminum sulfate achieving 43% and 62% removal efficiencies respectively, though the high concentrations required suggest that combining coagulants with organic polyelectrolytes could improve practicality.
Synthesis, assessment, and application of two-dimensional ferromagnetic nanocomposites for the removal of microplastics from drinking water and wastewater effluent
Researchers synthesized ferromagnetic 2D nanocomposites and evaluated their effectiveness at removing microplastics from drinking water and wastewater effluent, finding they offer a promising technological innovation for addressing MP contamination in water treatment systems.
Efficient removal of nanoplastics by iron-modified biochar: Understanding the removal mechanisms
Researchers created iron-modified biochar from green algae waste to remove nanoplastics from water. The modified biochar achieved a removal capacity three times higher than unmodified biochar, reaching up to 1,626 milligrams per gram, through a two-phase process of adsorption followed by aggregation. The study suggests this material could be recycled and reused at least three times, offering a practical approach to nanoplastic remediation.
Efficient microplastics adsorption in aqueous environments via bidirectional ordered graphene oxide/nanocellulose aerogels
Researchers developed a new material made from graphene oxide and nanocellulose that can effectively remove microplastics from water. The aerogel absorbed up to 241 milligrams of microplastics per gram of material and maintained over 80% efficiency after 20 reuse cycles. This kind of reusable filter technology could help reduce the amount of microplastics reaching drinking water sources and the food chain.