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61,005 resultsShowing papers similar to Research on the co-adsorption of As(V) and Cd(II) by Mg/Al/Fe-CLDH
ClearRecent advances in the detection and removal of heavy metal ions using functionalized layered double hydroxides: a review
This review summarized recent advances in using layered double hydroxide-based nanosensors and nanosorbents for detecting and removing heavy metal ions from water. The materials showed high selectivity and capacity for metals including lead, cadmium, and arsenic, with functionalization enabling tuned performance.
Competitive mechanism of microplastic addition for the adsorption of arsenic from an aqueous solution by magnetic biochar-supported layered double hydroxide
Researchers investigated competitive interactions between different microplastic types and pentavalent arsenic (As(V)) during adsorption onto a magnetic biochar-supported layered double hydroxide composite (MBC@LDH), examining the effects of pH, ionic strength, temperature, material dosage, and microplastic concentration. Their results revealed that microplastic presence significantly altered As(V) adsorption efficiency, with the competitive mechanisms varying by microplastic type and solution conditions.
Use of Waste Plastic Char as Adsorbent for Removal of Arsenic and COD from Aqueous Solution
Researchers tested char produced from pyrolysis of waste HDPE and polypropylene plastic as an adsorbent for removing arsenic and organic matter from water. Converting waste plastic into functional water treatment materials offers a dual benefit: removing plastic from circulation while addressing other water quality problems.
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
Researchers developed a composite material made from invasive plant-derived carbon combined with a metal-organic framework to simultaneously remove multiple heavy metals from water. The approach addresses co-contamination of aquatic environments where heavy metals and microplastics often occur together.
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.
Ca/Al and Mg/Al LDH Supported on Biochars As Effective Adsorbent and Highly Regeneration Ability for Phenol Removal from Aqueous Solution
This materials science study synthesizes biochar-composite adsorbents (Ca/Al and Mg/Al layered double hydroxides on biochar) and tests their ability to remove phenol from water, achieving improved surface area and five-cycle regeneration stability. It is not about microplastics and is a false positive for microplastic relevance.
Coagulation performance and mechanism of different novel covalently bonded organic silicon-aluminum/iron composite coagulant for As(V) removal from water: The role of hydrolysate species and the effect of coexisting microplastics
This study developed new coagulant chemicals for removing arsenic from drinking water and tested how the presence of microplastics affects the treatment process. Microplastics in the water interfered with arsenic removal by competing for the coagulant chemicals, reducing treatment effectiveness. The findings highlight a practical concern: as microplastic contamination in water sources increases, it may make it harder to remove other dangerous pollutants from drinking water.
Removal 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.
Effect and mechanism of coexistence of microplastics on arsenate adsorption capacity in water
Researchers examined how the presence of microplastics affects the ability of different materials to adsorb arsenate from contaminated water. They found that microplastics can interfere with the adsorption process, particularly by competing for binding sites on adsorbent materials like ZIF-8. The study highlights that co-contamination of water with both microplastics and heavy metals may complicate pollution remediation efforts.
Polyamide microplastics outperform polylactic acid in reducing cadmium health risks in arsenic-cadmium co-contaminated water: Insights from experimental and theoretical analysis
Researchers compared how polyamide and polylactic acid microplastics interact with arsenic and cadmium in contaminated water and assessed resulting health risks. The study found that while PLA microplastics absorbed more cadmium, they also released it more readily during digestion due to surface degradation by gut enzymes, making polyamide microplastics paradoxically less hazardous as cadmium carriers despite being a conventional plastic.
Impact of Microplastics on the Fate and Behaviour of Arsenic in the Environment and Their Significance for Drinking Water Supply
This review highlights a largely overlooked problem: microplastics in the environment can adsorb arsenic — one of the world's most dangerous water contaminants — onto their surfaces and potentially transport it to new locations or make it harder to remove during drinking water treatment. The authors call for urgent research into how the presence of microplastics affects the performance of arsenic removal technologies, since both pollutants now co-occur in water sources globally.
Adsorption of Co2+ and Cr3+ in Industrial Wastewater by Magnesium Silicate Nanomaterials
This paper is not about microplastics. It describes the development of magnesium silicate nanomaterials for removing cobalt and chromium heavy metals from industrial wastewater. While water treatment technology is broadly relevant to environmental health, this study focuses entirely on metal ion adsorption chemistry with no connection to microplastic contamination.
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.
Role of algae-bacterial consortium in heavy metal contaminated water treatment
This review examines the use of algae-bacterial consortia for bioremediation of arsenic and cadmium contamination in aquatic environments, synthesizing evidence that these biological partnerships can effectively remove heavy metals from polluted water systems.
Bismuthene@ZnAlBi LDHs structure as a novel nanosorbent for efficient uptake of arsenic (V)
Researchers engineered a novel nanomaterial by embedding bismuthene — a single-atom-thick layer of bismuth — into a layered double hydroxide structure, creating a highly effective adsorbent that removes over 94% of arsenic from water in just 30 minutes. The material can be regenerated and reused five times without significant loss of performance, offering a practical tool for arsenic-contaminated drinking water treatment.
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.
Layered Double Hydroxide-Based Photocatalysts for the Removal of Emerging Contaminants: Progress in Past Ten Years
This review summarizes a decade of research on layered double hydroxides -- specialized materials used as photocatalysts that harness light energy to break down pollutants in water, including microplastics and other emerging contaminants. These materials show promise for cleaning contaminated water because they can be tuned to target specific pollutants and activated by sunlight, offering a potential low-cost approach to reducing microplastic pollution in water supplies.
Adsorption of Arsenic and Cadmium on Biodegradable and Non-Biodegradable Microplastics in Soil: Comparison Based on Batch Experiment
Batch experiments showed that both biodegradable PBSA and conventional LDPE microplastic mulch films adsorbed arsenic(V) and cadmium(II) from soil, with PBSA enhancing arsenic adsorption and LDPE increasing cadmium uptake, altering heavy metal mobility in agricultural soils.
Effective removal of nanoplastics from water by cellulose/MgAl layered double hydroxides composite beads
Researchers developed cellulose and layered double hydroxide composite beads to remove nanoplastics from water. The material achieved a maximum removal capacity of 6.08 mg/g through mechanisms involving pore diffusion, hydrogen bonding, and electrostatic interactions, suggesting it could be a promising adsorbent for micro- and nanoplastic removal from water.
Competitive Adsorption Studies of Cd(II) and As(III) by Poly (Butylene Succinate) Microplastics: Based on Experimental and Theoretical Calculation
This study examined the competitive adsorption of cadmium (Cd(II)) and arsenic (As(III)) by biodegradable poly(butylene succinate) (PBS) microplastics in single and binary heavy metal systems. PBS microplastics preferentially adsorbed Cd over As, and binary-system competition reduced adsorption of both metals, with implications for MP-mediated heavy metal transport in aquatic environments.
Microplastics as a vehicle of heavy metals in aquatic environments: A review of adsorption factors, mechanisms, and biological effects
This review summarizes how microplastics in water can absorb and carry toxic heavy metals like lead and cadmium, making them more dangerous to aquatic life than either pollutant alone. Environmental factors such as water acidity, salinity, and organic matter influence how much metal sticks to microplastic surfaces. Since contaminated seafood is a major source of human exposure, understanding these interactions is important for assessing health risks.
Adsorptive removal of heavy metals from wastewater using Cobalt-diphenylamine (Co-DPA) complex
Researchers synthesized a new cobalt-diphenylamine complex and tested it for removing heavy metals like cadmium, lead, and chromium from wastewater. The material showed strong adsorption capacity, with removal efficiency influenced by factors such as pH, dosage, and initial metal concentration. The study suggests this type of metal-organic complex could be an effective tool for treating industrial wastewater contaminated with heavy metals.
Adsorption characteristics of cadmium onto microplastics from aqueous solutions
Laboratory adsorption experiments characterized how cadmium is taken up by microplastics of different polymer types from aqueous solutions, finding adsorption capacity varied significantly with polymer chemistry, particle size, and solution conditions. The results help predict how microplastics in contaminated waterways accumulate and transport cadmium, a highly toxic heavy metal.
Improved Cadmium Removal Induced by Interaction of Nanoscale Zero-Valent Iron and Microplastics Debris
Researchers investigated how PVC microplastics interact with nanoscale zero-valent iron used to remove cadmium from contaminated water. The presence of microplastics actually enhanced cadmium removal, likely due to adsorption on the plastic surface. These findings are relevant because PVC production uses cadmium compounds, meaning both pollutants may co-occur in real environments.