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Papers
61,005 resultsShowing papers similar to Removing Lead from Contaminated Sediment Using Indium-Based Perovskite Precursor
ClearA correlation of the adsorption capacity of perovskite/biochar composite with the metal ion characteristics
Researchers created a composite material combining perovskite (a mineral-like crystal) and biochar (charred plant material) to remove toxic heavy metals — lead, cadmium, and copper — from water, achieving very high removal capacities of up to 606 mg per gram for lead. The material was highly selective, worked well in real wastewater, and could be regenerated and reused multiple times, offering promise for water purification applications.
A high-performance fluorescent hybrid material for fluorometric detection and removal of toxic Pb(ii) ions from aqueous media: performance and challenges
Researchers developed a new fluorescent hybrid material capable of detecting and removing toxic lead ions from water. The sensor showed high sensitivity and selectivity for lead, with a low detection limit and the ability to work in real water samples. The study demonstrates a promising dual-function tool that could help both monitor and clean up heavy metal contamination in water sources.
A bifunctional robust metal sulfide with highly selective capture of Pb2+ ions and luminescence sensing ability for heavy metals in aqueous media
Researchers developed a 3D metal sulfide ion exchanger capable of selectively removing lead ions from water with high efficiency. While focused on heavy metal removal, similar ion exchange materials could potentially be combined with microplastic removal in water treatment systems, since plastics often carry sorbed heavy metals.
Hypercrosslinked waste polycarbonate to remove heavy metal contaminants from wastewater
Researchers chemically modified waste polycarbonate plastic using a process called hypercrosslinking, turning it into a resin capable of efficiently removing lead and cadmium ions from contaminated water. The material achieved removal capacities around 160 mg per gram for both toxic metals, demonstrating that plastic waste can be repurposed as a tool for cleaning up heavy metal pollution.
Conversion 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.
High-efficient biosorbent of Pb2+ derived from the organic frameworks of Cladophora rupestris
Researchers developed an adsorbent material from the green alga Cladophora rupestris to remove lead from water. The organic framework derived from the alga showed high lead-binding capacity across a range of conditions. Algae-based biosorbents offer a low-cost, renewable alternative to conventional materials for removing toxic heavy metals from contaminated water.
Advancements in Adsorption Techniques for Sustainable Water Purification: A Focus on Lead Removal
This review surveys recent advances in adsorption techniques for removing lead from contaminated water, covering materials from traditional metal oxides to newer options like chitosan, zeolites, and carbon-based structures. Researchers evaluate how well each material performs and highlight promising alternatives that are more sustainable and cost-effective. While focused on heavy metals rather than microplastics, the study contributes to the broader effort of developing better water purification methods.
Functionalization of Strontium Ferrite Nanoparticles with Novel Chitosan–Schiff Base Ligand for Efficient Removal of Pb(II) Ions from Aqueous Media
Researchers developed a new magnetic nanocomposite made from strontium ferrite and a chitosan-based compound to remove lead from contaminated water. The material achieved over 98% lead removal efficiency under optimized conditions and could be easily recovered using a magnet for reuse. This approach offers a promising, recyclable tool for cleaning up heavy metal pollution in water sources.
Muscovite based polyaniline nanocomposite as effective adsorbent for removal of Cd2+ and Pb2+ ions from liquid waste
Researchers synthesized a polyaniline/muscovite nanocomposite adsorbent and showed it effectively removed cadmium and lead ions from liquid waste, with the hybrid material combining the adsorption strengths of both components.
Effective removal of heavy metal ions (Pb, Cu, and Cd) from contaminated water by limestone mine wastes
Researchers tested limestone mining waste and its heat-treated derivative as low-cost materials for removing lead, copper, and cadmium from contaminated water, finding that calcined (heat-treated) limestone could absorb far higher concentrations of these heavy metals than raw limestone. The results suggest that industrial waste from limestone quarries could be repurposed as an affordable water treatment solution for heavy metal pollution.
Evaluation of Efficient Pb Removal from Aqueous Solutions using Biochar Beads
Researchers developed alginate-biochar bead composites to improve the removal of lead from water compared to powdered biochar alone. The beads were easier to separate from solution and maintained high removal efficiency. This approach could make biochar-based heavy metal remediation more practical for real-world water treatment applications.
Magnetically Separable Humic Acid-Chitin Based Adsorbent as Pb(II) Uptake in Synthetic Wastewater
Researchers synthesized a magnetic humic acid-chitin composite material to adsorb lead (Pb) from synthetic wastewater, achieving high removal efficiency. Magnetically separable adsorbents are being developed for removing microplastics and associated heavy metals from contaminated water.
Magnetite-Functionalized Horse Dung Humic Acid (HDHA) for the Uptake of Toxic Lead(II) from Artificial Wastewater
Scientists synthesized a magnetic material from horse dung-derived humic acid to efficiently remove lead from wastewater, achieving rapid uptake and easy magnetic separation. While focused on heavy metals, magnetic separation technology is also being explored for removing microplastics from water.
Microplastics inhibit lead binding to sediment components: Influence of surface functional groups and charge environment
Researchers systematically investigated interactions among lead, polystyrene microplastics, and sediment components to understand how microplastics affect heavy metal behavior in aquatic environments. The study found that polystyrene significantly inhibited lead adsorption to sediment by competing for binding sites, reducing lead uptake by up to 28%, which suggests that microplastics could increase the mobility of toxic metals in contaminated waterways.
Investigation of the adsorption behavior of Pb(II) onto natural-aged microplastics as affected by salt ions
Researchers found that naturally aged microplastics adsorb significantly more lead than virgin microplastics, and that calcium chloride in solution strongly inhibits lead adsorption, indicating that environmental weathering and water chemistry alter contaminant transport.
Interaction of Pb(II) with microplastic-sediment complexes: Critical effect of surfactant
Researchers investigated how surfactants affect the ability of microplastic-sediment complexes to adsorb lead (Pb) in river environments. The study found that surfactants significantly altered adsorption behavior, with anionic surfactants increasing lead uptake while nonionic surfactants decreased it, suggesting that surfactant presence in polluted waters can change how heavy metals interact with microplastics in sediments.
Exploring Humic Acid as an Efficient and Selective Adsorbent for Lead Removal in Multi-Metal Coexistence Systems: A Review
This review examines how humic acid, a natural substance found in soil and water, can selectively remove lead from water contaminated with multiple heavy metals. The research explores how to enhance humic acid's ability to capture lead ions specifically, including through chemical activation and pH control. While focused on heavy metals, the work is relevant to microplastics research because microplastics can concentrate and transport lead and other heavy metals, and better lead removal from water could reduce this combined pollution threat.
Synthesis of Amorphous MnFe@SBA Composites for Efficient Adsorptive Removal of Pb(Ⅱ) and Sb(V) from Aqueous Solution
Researchers synthesized a new composite material by growing manganese-iron oxide on a porous silica support for removing lead and antimony from contaminated water. The material removed over 99 percent of lead and 80 percent of antimony within two hours and performed well even in the presence of other dissolved ions. While not directly related to microplastics, the study contributes to water purification technology that could complement plastic pollution cleanup efforts.
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.
Phytoremediation Potential of Helianthus annuus L (Sunflower) for the Reclamation of Lead (Pb) Spiked Soil
Laboratory experiments tested sunflower (Helianthus annuus) for phytoremediation of lead-contaminated soil at concentrations up to 750 mg/kg, assessing plant tolerance and uptake potential as a low-cost, environmentally friendly remediation method.
Enhanced lead precipitation by montmorillonite-based artificial cyanobacterial biocrusts co-validated indoors and outdoors
Researchers developed montmorillonite-based artificial cyanobacterial biocrusts using Microcoleus steenstrupii to enhance lead fixation efficiency in contaminated sandy soils, validating the approach in both indoor and outdoor experiments. Montmorillonite promoted chlorophyll a accumulation in cyanobacteria and enhanced biomineralisation-driven lead precipitation, shortening natural biocrust formation timescales and improving remediation performance.
The remediation potential and kinetics of Pb2+ by the organic frameworks of Cladophora rupestris
This study produced an organic framework from the freshwater alga Cladophora rupestris for adsorbing lead (Pb2+) from water, characterizing its sorption capacity and kinetics. Algae-based biosorption materials offer low-cost, sustainable approaches to removing heavy metals from contaminated water, with relevance to treating co-polluted environments where plastics and metals occur together.
Pb(II) Uptake from Polluted Irrigation Water Using Anatase TiO2 Nanoadsorbent
This paper is not about microplastics; it examines the use of titanium dioxide nanoparticles to remove lead (Pb) from irrigation water, achieving over 99% removal efficiency.
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.