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61,005 resultsShowing papers similar to Enhanced adsorption and co-adsorption of heavy metals using highly hydrophilicity amine-functionalized magnetic hydrochar supported MIL-53(Fe)-NH2: performance, kinetics and mechanism studies
ClearRemoval of Co-Occurring Microplastics and Metals in an Aqueous System by Pristine and Magnetised Larch Biochar
Researchers tested pristine and modified biochar for simultaneous removal of co-occurring microplastics and heavy metals from water, finding that biochar surface modifications improved adsorption of both contaminant classes, offering a promising dual-removal treatment strategy.
Adsorption of heavy metal onto biomass-derived activated carbon: review
This review summarizes how activated carbon made from plant-based materials can be used to remove heavy metals from polluted water. Since microplastics in water often carry and concentrate heavy metals on their surface, improving our ability to filter these combined contaminants is important for protecting drinking water and human health.
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.
Efficient Removal of Micro-Sized Degradable PHBV Microplastics from Wastewater by a Functionalized Magnetic Nano Iron Oxides-Biochar Composite: Performance, Mechanisms, and Material Regeneration
Researchers developed a magnetic iron oxide-biochar composite capable of removing biodegradable PHBV microplastics from wastewater with over 98% efficiency. The material worked through a combination of surface adsorption and magnetic separation, maintained performance across a wide pH range, and retained over 92% removal efficiency after four regeneration cycles.
Recent advancement in removal of microplastics as emerging pollutants from aquatic ecosystems: adsorption and separation
This review summarizes recent advances in adsorption and separation technologies for removing microplastics from aquatic ecosystems, covering materials including magnetic nanoparticles, metal-organic frameworks, biochar, and electrocoagulation approaches.
Clean water production from plastic and heavy metal contaminated waters using redox-sensitive iron nanoparticle-loaded biochar
Researchers developed a biochar material loaded with iron nanoparticles that can simultaneously remove nanoplastics and heavy metal ions from contaminated water. The material achieved over 90 percent removal across a range of water conditions and worked effectively in both batch and continuous-flow tests. The study presents a practical, low-cost approach for cleaning up water polluted with both plastic particles and toxic metals.
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.
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.
Interactions of microplastics with heavy metals in the aquatic environment: Mechanisms and mitigation
This review synthesized mechanisms of heavy metal adsorption onto microplastics in aquatic environments and evaluated strategies for removing both contaminants simultaneously. The authors found that temperature, salinity, and plastic surface aging govern metal binding, and identified hybrid adsorbent materials as the most promising approach for co-removal of metals and microplastics from water.
Properties and Possibilities of Using Biochar Composites Made on the Basis of Biomass and Waste Residues Ferryferrohydrosol Sorbent
Not relevant to microplastics — this is a materials science study on iron-enriched biochar composites made from waste biomass, evaluated for their ability to remove dyes, pharmaceuticals, and heavy metals from water via adsorption.
Functionalized Biochars for Enhanced Removal of Heavy Metals from Aqueous Solutions: Mechanism and Future Industrial Prospects
This review examined functionalized biochar materials as adsorbents for removing heavy metals from water, comparing surface modification strategies that enhance metal uptake capacity and selectivity. Functionalized biochars showed substantially improved adsorption performance over unmodified biochar and low-cost conventional materials.
Rapid magnetization and removal of microplastics from environment and food based on magnetic metal-organic framework Fe3O4@SiO2@MIL-53(Al)
A magnetic metal-organic framework material (Fe3O4@SiO2@MIL-53(Al)) was synthesized and used to rapidly magnetize and remove four types of microplastics from both water samples and food matrices, achieving efficient MP removal without complex filtration procedures.
Effective removal of microplastics by filamentous algae and its magnetic biochar: Performance and mechanism
Researchers found that filamentous algae and a magnetic biochar made from the algae can effectively remove microplastics from water, with the biochar absorbing over 215 milligrams of microplastics per gram. The algae naturally trap microplastics through entanglement and adhesion, while the magnetic biochar can be easily recovered from water using magnets. This dual approach could help address both algae bloom problems and microplastic contamination in urban water systems.
Ecofriendly sustainable synthetized nano-composite for removal of heavy metals from aquatic environment
An eco-friendly nano-composite was synthesized and tested for removing heavy metals from aquatic environments, achieving high removal efficiencies for multiple metals through adsorption. The material was developed using sustainable synthesis methods and biomass-derived components, offering a greener alternative to conventional adsorbents for water treatment.
Adsorption and mechanism of magnetically modified industrial hemp straw biochar on microplastics in aqueous solution
A magnetically modified industrial hemp straw biochar adsorbent was developed and tested for removing polystyrene microplastics from groundwater. The KOH-activated, iron-modified biochar achieved efficient MP adsorption through electrostatic attraction and hydrophobic interactions, offering a sustainable low-cost remediation material.
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.
Nanoarchitectonics of molybdenum rich crown shaped polyoxometalates based ionic liquids reinforced on magnetic nanoparticles for the removal of microplastics and heavy metals from water
This study developed mesoporous composite adsorbents consisting of polyoxometalate-based ionic liquids on magnetic silica-coated nanoparticles for simultaneous removal of heavy metals and microplastics from water. The composites achieved high removal efficiency for both contaminant classes and could be magnetically separated for reuse, offering a dual-function water treatment material.
Recent advances and factors affecting the adsorption of nano/microplastics by magnetic biochar
This review examines recent advances in using magnetic biochar to adsorb nano- and microplastics from aquatic environments. Researchers found that magnetic biochar offers advantages over traditional biochar by enabling easy separation from water using magnets, avoiding secondary pollution from filtration. The study identifies key factors affecting adsorption efficiency and highlights magnetic biochar as a promising tool for microplastic remediation in contaminated water.
Scavenging microplastics and heavy metals from water using jujube waste-derived biochar in fixed-bed column trials
Researchers found that biochar derived from jujube waste effectively removed over 99% of nylon and polyethylene microplastics from water in fixed-bed column trials, while also demonstrating capacity for heavy metal removal at optimal neutral pH.
Theoretical and experimental investigation on rapid and efficient adsorption characteristics of microplastics by magnetic sponge carbon
Researchers developed a magnetic sponge carbon material that demonstrated rapid and efficient adsorption of microplastics from water, with both theoretical modeling and experiments confirming strong removal capacity driven by magnetic and porous structural properties.
The Use of Biochar for Removal of Emerging Contaminants in Contaminated Water
This literature review examined 15 studies on biochar for removing emerging contaminants from water and effluents, finding that biochar made from waste raw materials is a low-cost, efficient, and scalable adsorbent for various pollutants. The review is relevant to microplastic research as biochar has potential as a treatment material for water contaminated with emerging contaminants co-occurring with microplastics.
Emerging contaminants in polluted waters: Harnessing Biochar's potential for effective treatment
This review explores how biochar, a carbon-rich material made from organic waste, can be used to remove a wide range of pollutants from contaminated water, including microplastics, heavy metals, antibiotics, and PFAS. Biochar works through multiple mechanisms like adsorption, electrostatic interactions, and chemical bonding, and can be enhanced through surface modifications. The study highlights biochar as a low-cost, adaptable tool for addressing emerging water contaminants.
Current progress in sorptive eradication of microplastics from aqueous media: a review
This review summarized sources of microplastics and their health effects, and evaluated various sorbent materials—including biochar, activated carbon, and nanomaterials—used to remove MPs from water under different pH, temperature, and concentration conditions.
Adsorption of Heavy Metals: Mechanisms, Kinetics, and Applications of Various Adsorbents in Wastewater Remediation—A Review
This review summarizes how different materials like activated carbon, agricultural waste, and nanomaterials can filter heavy metals out of contaminated water. Since microplastics in water can carry and concentrate heavy metals, improving water treatment is important for reducing human exposure to these combined pollutants.