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61,005 resultsShowing papers similar to Recent advances in the detection and removal of heavy metal ions using functionalized layered double hydroxides: a review
ClearRecent Progress of Layered Double Hydroxide-Based Materials in Wastewater Treatment
This review examines the use of layered double hydroxides (LDHs) as catalysts and adsorbents for wastewater treatment. Researchers found that LDH-based materials can effectively remove heavy metal ions, organic pollutants, and oil contaminants from wastewater due to their high anion exchange capacity, thermal stability, and large surface area.
Research on the co-adsorption of As(V) and Cd(II) by Mg/Al/Fe-CLDH
This study developed a modified layered double hydroxide material capable of simultaneously removing arsenic and cadmium from industrial wastewater. Effective removal of these heavy metals, which can adsorb to microplastics, is important for reducing the combined chemical hazard of plastic pollution in water environments.
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.
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.
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.
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.
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.
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.
Modular polyoxometalate-intercalated layered double hydroxide membranes for molecular sieving and in situ regeneration
Researchers developed modular polyoxometalate-intercalated layered double hydroxide (LDH) membranes using charge-driven self-assembly for molecular sieving applications. The MgAl-SiW12 membrane demonstrated 4-times higher water permeance (over 130 L/m2/h/bar) than its precursor and achieved over 99% retention of Congo red and Evans blue dyes, with greater than 95% permeance recovery after regeneration.
Effective adsorption of heavy metal ions in water by sulfhydryl modified nano titanium dioxide
Researchers developed sulfhydryl-modified nano-titanium dioxide adsorbents and demonstrated highly efficient removal of multiple heavy metal ions from contaminated water, finding that surface modification significantly increased adsorption capacity and selectivity compared to unmodified TiO2 nanoparticles.
Green Synthesis and Efficient Adsorption: Na-X Zeolite vs. C/Mn/SiO2 Composite for Heavy Metals Removal
Researchers tested the adsorption capacity of synthetic Na-X zeolite and a carbon/manganese/silica composite for removing lead and zinc ions from water, including in the presence of diclofenac and poly(acrylic acid). Both materials showed strong heavy metal removal potential, with performance varying depending on the presence of co-contaminants.
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.
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.
Nanomaterials for Water Remediation: An Efficient Strategy for Prevention of Metal(loid) Hazard
This review examines how nanomaterials can be used to remediate metal and metalloid contamination in water, covering adsorption mechanisms, synthesis methods, and the advantages of nano-scale adsorbents over conventional water treatment approaches.
Comparative Review of Different Adsorption Techniques Used in Heavy Metals Removal in Water
This review compares different adsorption techniques for removing heavy metals from water, including the use of metal oxides, graphene, zeolites, and carbon-based composites. Researchers found that these materials offer high surface area and efficient pollutant removal capabilities. The study provides an overview of the economic feasibility of various adsorbents for addressing heavy metal contamination in water resources.
Sensors Applied for the Detection of Pesticides and Heavy Metals in Freshwaters
This review surveys sensors developed for detecting pesticides and heavy metals in freshwater, covering electrochemical, optical, and nanomaterial-based detection technologies. The authors highlight recent advances in sensitivity and selectivity that improve the ability to monitor water quality for ecological protection and public health.
New color changing sorption material for effective removal of heavy metals from wastewater
Researchers synthesized a novel zeolite-based sorbent modified with polyethylene polyamine, 1,2-pyridylazonaphthol, and ED-20 epoxy resin for removing heavy metal cations from wastewater, achieving a maximum sorption capacity of 220 mg/g. The material provides a visual color-change indicator of sorption efficiency, is unaffected by competing alkali and alkaline earth metal cations, and can be regenerated and reused across 10-12 desorption cycles using 0.20 M HCl.
On the Adsorbent, Membrane, and Sensor Function of 2D Graphenylene: A Density Functional Theory Study
Researchers used density functional theory simulations to characterize 2D graphenylene networks as multifunctional water purification materials, finding they can spontaneously adsorb heavy metals and organic contaminants, selectively permeate certain ions, and — with strategic silicon doping — enable highly selective sensing of cadmium.
Recent advances in luminescent chemosensors for sensitive and selective detection of heavy metal ions in aqueous environments
Scientists have reviewed new tools that use light to detect dangerous heavy metals like lead and mercury in water. These "luminescent sensors" can quickly spot tiny amounts of toxic metals, which is important because heavy metals can cause serious health problems when people drink contaminated water. The research shows these sensors could provide a cheaper, faster way to test water safety compared to current methods.
A comprehensive review on monitoring and purification of water through tunable 2D nanomaterials
This review examines how two-dimensional nanomaterials — including graphene, g-C3N4, MoS2, and MXene — can be used to monitor and remove heavy metals, organic pollutants, and other contaminants from water systems more efficiently than conventional methods.
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.
Electrochemical and Colorimetric Nanosensors for Detection of Heavy Metal Ions: A Review
This review covers nanosensor technologies being developed to detect heavy metal contamination in environmental and food samples, which is important because heavy metals are linked to cancer, neurological disorders, and developmental problems. While focused on metal detection rather than plastics directly, these affordable and portable sensor technologies could be adapted for detecting microplastic-associated contaminants in water and food.
Recent Progress of Remediating Heavy Metal Contaminated Soil Using Layered Double Hydroxides as Super-Stable Mineralizer
This review covers the use of layered double hydroxides (LDHs) as "super-stable mineralizers" for remediating heavy metal contamination in soil. It is not about microplastics and is a false positive for microplastic relevance.
A 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.