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61,005 resultsShowing papers similar to Hypercrosslinked waste polycarbonate to remove heavy metal contaminants from wastewater
ClearConversion of the styrofoam waste into a high-capacity and recoverable adsorbent in the removing the toxic Pb(II) from water media
Researchers chemically modified waste styrofoam — a common plastic pollutant — into a magnetic adsorbent capable of removing toxic lead (Pb²⁺) ions from water, achieving around 90% removal efficiency. This work shows that plastic waste can be repurposed into useful water-treatment materials, offering a dual benefit of reducing plastic waste while cleaning heavy metal contamination.
Synthesis of polyvinyl chloride modified magnetic hydrochar for effective removal of Pb(II) and bisphenol A from aqueous phase: performance and mechanism exploration
Scientists created a new material by combining PVC plastic waste with corn straw and iron oxide to make a magnetic filter that can remove lead and bisphenol A from water. The material worked well across a wide range of water conditions and could be reused multiple times. While focused on water cleanup technology, this research shows how recycled plastic waste can be repurposed to help address water contamination, including pollutants often associated with microplastics.
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.
Valorization of Plastic Wastes for the Development of Adsorbent Designed for the Removal of Emerging Contaminants in Wastewater
This review examines how plastic waste can be converted into adsorbent materials for removing emerging contaminants from wastewater — turning a pollution problem into a remediation solution. The approach could simultaneously reduce plastic waste and improve wastewater quality, reducing the amount of pollutants reaching drinking water sources.
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.
Functional upcycling of waste PET plastic to the hybrid magnetic microparticles adsorbent for cesium removal
Researchers developed a method to upcycle waste PET plastic bottles into magnetic microparticle adsorbents for removing cesium from water. The approach uses aminolysis to break down PET, then combines the resulting material with bentonite clay and magnetite nanoparticles, demonstrating a practical way to repurpose plastic waste for environmental remediation.
Enhancing Pb Adsorption on Crushed Microplastics: Insights into the Environmental Remediation
Researchers found that crushed microplastics generated during plastic recycling have significantly higher capacity to absorb lead than primary microplastics, due to their greater surface area and more reactive surfaces. Factors like particle size, water pH, salinity, and biofilm formation all influenced how much lead the particles could adsorb. The study raises concerns that the recycling process itself may create a secondary environmental hazard by producing microplastics that more efficiently concentrate toxic heavy metals.
Electrochemical oxidation of polyethylene microplastics: from efficient removal to sustainable valorization
Scientists developed a new method that can remove up to 98% of tiny plastic particles from water in just three hours using a special electrical process. Instead of just destroying the plastic waste, this technique turns it into useful chemicals like acids that can be used to make other products. This breakthrough could help clean up plastic pollution in our water while also creating a way to recycle plastic waste into valuable materials.
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.
Microporous carbon derived from waste plastics for efficient adsorption of tetracycline: Adsorption mechanism and application potentials
Scientists converted waste PET plastic bottles into a porous carbon material that can remove 100% of the antibiotic tetracycline from water. The material worked effectively across a wide range of water conditions and could be reused multiple times. This approach offers a double benefit: it repurposes plastic waste that would otherwise become microplastic pollution while also cleaning antibiotics from water, addressing two environmental threats at once.
Efficient and Selective Removal of Heavy Metals and Dyes from Aqueous Solutions Using Guipi Residue-Based Hydrogel
Researchers created a hydrogel material from Chinese herbal medicine residue and chitosan that can effectively remove lead, cadmium, and toxic dyes from polluted water. The material maintained its cleaning ability through at least five reuse cycles. While not focused on microplastics, this type of water treatment technology could be part of broader solutions for removing multiple contaminants, including microplastics, from drinking water sources.
Activating Adsorption Sites of Waste Crayfish Shells via Chemical Decalcification for Efficient Capturing of Nanoplastics
Scientists developed a way to use waste crayfish shells to capture and remove nanoplastics from water. By removing the mineral components, they exposed natural binding sites on the shell material that can grab onto nanoplastic particles through multiple chemical interactions. This affordable, recyclable approach could offer a practical solution for filtering nanoplastics out of contaminated water, potentially reducing human exposure through drinking water.
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.
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.
Catalytic Amounts of an Antibacterial Monomer Enable the Upcycling of Poly(Ethylene Terephthalate) Waste
Scientists developed a new method to recycle PET plastic waste (commonly used in bottles) into high-value antibacterial material using only small amounts of a special monomer. This approach addresses both plastic pollution and the need for antimicrobial materials, while avoiding the biotoxicity problems of traditional metal-based antibacterial agents. The technique represents a promising way to upcycle plastic waste rather than simply discarding it.
Fe-Modified Sewage Sludge Biochar for Efficient Removal of Nanoplastics from Water: Mechanistic Insights and Multi-Pathway Adsorption Analysis
Scientists developed a new water filter material made from sewage sludge and iron that can remove 96% of tiny plastic particles (called nanoplastics) from water. These microscopic plastic bits are found everywhere in our water supply and may pose health risks, but this new filter works much better than existing methods. This research could lead to better ways to clean nanoplastics from our drinking water while also recycling waste materials.
Reframing microplastics as a ligand for metals reveals that water quality characteristics govern the association of cadmium to polyethylene
Researchers reframed microplastics as a chemical ligand for metals and studied how water quality characteristics govern cadmium binding to polyethylene particles. They found that factors like pH, dissolved organic carbon, and water hardness significantly influenced how much cadmium adhered to the plastic surface. The study suggests that the environmental risk of microplastics as metal carriers depends heavily on local water chemistry conditions.
Surface wettability control and electron transport regulation in zerovalent iron for enhanced removal of emerging polystyrene microplastics-heavy metal contaminants
Researchers developed a specially engineered iron-based material that can simultaneously remove microplastics and heavy metals from wastewater by combining a water-repelling outer layer with efficient electron transfer at its core. In tests, the material removed over 99% of polystyrene microplastics and prevented the secondary release of heavy metals that often ride along on plastic particles. This addresses the concern that microplastics act as a "Trojan horse," carrying toxic metals into water supplies and living organisms.
Microplastics as adsorbent for Pb2+ and Cd2+: A comparative study of polypropylene, polyvinyl chloride, high-density polyethylene, and low-density polyethylene
Researchers compared how four common types of microplastics adsorb lead and cadmium heavy metals in aquatic environments. The study found that polypropylene had the highest adsorption capacity for both metals, with oxygen-containing functional groups playing a key role in the adsorption process, suggesting that different microplastic types pose varying levels of environmental risk as heavy metal carriers.
Durable Superhydrophobic Coating for Efficient Microplastic Removal
Researchers developed a durable superhydrophobic (water-repelling) coating on aluminum that can efficiently capture and remove microplastic particles from water. The coating attracted microplastics at high removal rates and remained effective over multiple use cycles. This type of material could be incorporated into water treatment systems or filtration devices to reduce microplastic contamination in drinking water and wastewater.
Environmental aspects of restoring the environment: nanotechnology for removing micro and nanoplastics from water
Researchers developed a plasma chemical water purification method that combines modified humic substances with high-voltage electrical discharge to aggregate and magnetically remove micro- and nanoplastics from contaminated water. Tested on wastewater from a printing facility, the method outperformed conventional sorption or plasma treatment alone and showed promise for simultaneously removing plastics, heavy metals, and organic pollutants. This offers a potentially scalable technology for treating industrial wastewater sources that are currently releasing nanoplastics to the environment.
Removal of Classical and Emerging Contaminants in Water Treatment Using Super-Bridging Fiber-Based Materials
Researchers designed iron-grafted cellulose fibers and tested them for removing both classical contaminants and emerging pollutants including microplastics from wastewater, demonstrating high removal efficiency across a broad range of contaminant types in a single treatment step.
Generation of Eroded Nanoplastics from Real World Wastes and Their Capacity for Heavy Metal Adsorption
Researchers generated nanoplastics from real-world plastic waste including PET, polystyrene, and polypropylene, then tested their ability to absorb heavy metals. Polypropylene nanoplastics showed the highest absorption capacity for most metals tested, while lead was absorbed most rapidly across all plastic types, with over 99% uptake within five minutes. The findings suggest that nanoplastics in the environment may serve as carriers for toxic heavy metals, potentially increasing their bioavailability and environmental risk.
Waste Plastic Recycling Upgrade Design Nanogenerator for Catalytic Degradation of Pollutants
Researchers converted plastic waste into nanogenerator components capable of driving the catalytic breakdown of water pollutants using ambient water flow energy. The approach demonstrates a creative way to both repurpose plastic waste and develop sustainable water treatment technologies.