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61,005 resultsShowing papers similar to Efficient removal of polystyrene nanoplastics from complex water system through multiple driving forces with MOF-based composite
ClearExploration of interaction mechanism and removal performance of polystyrene nanoplastics with covalent organic framework: Experimental and theoretical study
Researchers synthesized a covalent organic framework (COF) material and demonstrated it can remove polystyrene nanoplastics from water with 99% efficiency within two hours, driven primarily by electrostatic attraction, and retains strong performance across multiple regeneration cycles.
Removal of Polystyrene Microplastics from Aqueous Solution Using the Metal–Organic Framework Material of ZIF-67
Researchers demonstrated that the metal-organic framework ZIF-67 can effectively adsorb polystyrene microplastics from aqueous solutions, achieving high removal efficiency and suggesting MOF materials as a promising approach for microplastic removal from wastewater.
Advances in metal-organic frameworks for microplastic removal from aquatic environments: Mechanisms and performance insights
Researchers reviewed over 65 studies on using metal-organic frameworks (MOFs) — highly porous, sponge-like materials — to remove microplastics from water, finding some MOFs achieved up to 98% removal efficiency and could be reused six times, making them a promising filtration technology for microplastic pollution.
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.
Removal of polystyrene nanoplastics from water by Cu Ni carbon material: The role of adsorption
Researchers developed a copper-nickel carbon material that removed up to 99.18% of polystyrene nanoplastics from water through physical adsorption, with the recyclable material maintaining approximately 75% removal efficiency after four reuse cycles.
Performance of MOF-containing active layer and HOF-based support layer of ultrafiltration membrane for nanoplastics removal from secondary effluent
Researchers built a novel ultrafiltration membrane using two advanced porous framework materials to filter nanoplastics out of real wastewater treatment plant effluent, successfully identifying and removing poly(methyl methacrylate), polyethylene, and polystyrene nanoparticles. The work addresses a critical gap because conventional wastewater treatment does not reliably remove nanoplastics before treated water is discharged.
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.
Metal–organic framework-based foams for efficient microplastics removal
Scientists developed foam materials made from zirconium metal-organic frameworks that can efficiently capture microplastics from water, offering a promising filtration approach for water treatment applications. The porous foam structure provides high surface area for trapping plastic particles.
Microplastics removal from aqueous environment by metal organic frameworks
This review examines how metal-organic frameworks (MOFs), a class of advanced porous materials, can remove 70-99.9% of microplastics from water in laboratory settings. MOFs can be customized with specific pore sizes and chemical properties to target different types of microplastics. While challenges remain with cost and scaling up, this technology shows promise for developing more effective water treatment systems to reduce human exposure to microplastics in drinking water.
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.
From pollution to solution: Optimized UiO-66 based metal-organic framework for environmental cleanup
Researchers converted recycled plastic bottles (PET) into a high-surface-area material called UiO-66, a metal-organic framework, and embedded it in filtration membranes that removed over 100% of microplastic particles from water. This sustainable approach turns plastic waste into a tool for cleaning up plastic pollution.
Removal of nano-sized polystyrene plastic from aqueous solutions using untreated coffee grounds
Researchers tested untreated coffee grounds as a low-cost biosorbent for removing nanoplastics from water, finding up to 74% removal efficiency across a wide pH range within 40 minutes, with electrostatic interactions and hydrogen bonding between coffee ground surface groups and the polystyrene particles driving adsorption.
A hybrid LMO MOF catalytic membrane with PMS activation for efficient degradation of pharmaceutical micropollutants and nanoplastics removal
Researchers developed a hybrid catalytic membrane combining metal-organic frameworks with layered metal oxides for degrading pharmaceutical micropollutants and removing nanoplastics from water. The membrane achieved 95-99.5% degradation of several micropollutants and 98.5% removal of polystyrene nanoplastics. The study demonstrates a dual-function water treatment approach that addresses both chemical and plastic particle contamination simultaneously.
High-performance amino-crosslinked phosphorylated microcrystalline cellulose/MoS2 hybrid aerogel for polystyrene nanoplastics removal from aqueous environments
Researchers fabricated a porous aerogel from phosphorylated cellulose and molybdenum disulfide nanosheets functionalized with polyethyleneimine and showed it removes carboxyl-modified polystyrene nanoplastics from water with an adsorption capacity of 402 mg/g, maintaining performance across a range of water chemistries and remaining reusable after multiple cycles.
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.
Polystyrene microplastics removal from aqueous solutions by magnetic iron nanoparticles
Researchers tested magnetic iron oxide (Fe₃O₄) nanoparticles for removing polystyrene microplastics from water, systematically optimizing concentration, dosage, contact time, and pH, and found effective microplastic removal through adsorption interactions that could be leveraged for environmental remediation.
Toward Scalability: Fe‐MOF‐Based Ultrafiltration Membrane for Effective Microplastics Removal from Drinking Water at Point‐of‐Use
Researchers developed a metal-organic framework composite membrane for removing microplastics from drinking water at point-of-use. By integrating an iron-based MOF onto a commercial ultrafiltration membrane, they achieved enhanced removal of PET microplastics while maintaining water flow suitable for practical use. The study demonstrates a scalable approach to reducing microplastic exposure from bottled and tap drinking water.
Evaluating the performance of the metal organic framework-based ultrafiltration membrane for nanoplastics removal
Researchers created an advanced membrane filter using metal-organic framework nanoparticles that removed over 99% of nanoplastics from water while maintaining high water flow rates. The membrane resisted fouling and worked reliably across multiple cycles and different water conditions. This type of technology could improve wastewater treatment plants' ability to prevent nanoplastics from reaching drinking water supplies.
Metal-organic frameworks and plastic: an emerging synergic partnership
This review examines how metal-organic frameworks (MOFs), a class of crystalline nanoporous materials, can be used to address plastic pollution in water. Researchers found that MOFs show promise as adsorbents for removing micro- and nanoplastic particles, especially when integrated into composite materials or membranes, achieving high removal efficiency and water flow rates. The study also highlights an emerging trend of producing MOFs from plastic waste like PET as a sustainable source of raw materials.
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.
Metal–organic framework applications for microplastic remediation: exploring pathways and future potential
This review examines how metal-organic frameworks (specialized porous materials) can be used to capture and remove microplastics from water. Microplastics are emerging contaminants that threaten aquatic ecosystems and human health. The paper explores different remediation pathways and the future potential of these advanced materials for cleaning up microplastic pollution.
Amino-Functionalized Chromium-Based Metal-Organic Framework NH2-MIL-101(Cr) for the Removal of Nanoplastics from Water
Researchers synthesized an amino-functionalized chromium-based metal-organic framework, NH2-MIL-101(Cr) modified with 3-aminopropyltrimethoxysilane, and evaluated its capacity to remove polystyrene nanoplastics from water. The material achieved up to 97.5% removal efficiency with a maximum adsorption capacity of 508.39 mg/g, driven primarily by electrostatic attraction between the positively charged framework surface and negatively charged nanoplastic particles.
Filtration of polystyrene nanoplastics with different functional groups by natural mineral materials: Performance and mechanisms
Researchers tested natural granular mineral materials including manganese sand, zeolite, and limestone as filter media for removing polystyrene nanoplastics with different surface functional groups from water. The study assessed which minerals perform best in rapid sand filters for nanoplastic removal under varying water chemistry conditions.
Development of hydroxyapatite-enhanced membrane for nanoplastics removal: Multiple scenarios and mechanism exploration
Researchers developed a novel hydroxyapatite-functionalized PVDF membrane (HAPF) for nanoplastics removal, achieving a water flux of 4376 LMH and high polystyrene nanoplastic rejection efficiency, with the optimized membrane prepared via a one-step method at pH 7.3.