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61,005 resultsShowing papers similar to Modular polyoxometalate-intercalated layered double hydroxide membranes for molecular sieving and in situ regeneration
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.
COMPOSITE MEMBRANES BASED ON MXene AND NANOCELLULOSE: PROPERTIES AND WATER PURIFICATION EFFICIENCY
Researchers reviewed composite membranes based on MXene and nanocellulose for water purification, evaluating their ability to remove heavy metals, dyes, pharmaceuticals, and microplastics. The membranes demonstrated high removal efficiency across contaminant types due to their large surface area and tunable charge properties.
Multifunctional sodium alginate/chitosan-modified graphene oxide reinforced membrane for simultaneous removal of nanoplastics, emulsified oil, and dyes in water
Researchers developed a bioinspired three-layer membrane using sodium alginate, graphene oxide, and chitosan that removed over 99% of nanoplastics, emulsified oil, and dyes from water simultaneously, with excellent stability in extreme pH conditions and good recyclability.
Graphene oxide offers precise molecular sieving, structural integrity, microplastic removal, and closed-loop circularity in water-remediating membranes through a covalent adaptable network
Graphene oxide membranes were shown to offer precise molecular sieving and structural integrity while also achieving microplastic removal and improved water flow characteristics, supporting their potential in next-generation water treatment systems.
A Symmetry Concept for the Self-Assembly Synthesis of Mn-MIL-100 Using a Capping Agent and Its Adsorption Performance with Methylene Blue
Researchers synthesized a metal-organic framework material capable of adsorbing the dye methylene blue from water. Adsorptive materials like this could potentially also capture microplastics and plastic-associated dyes from wastewater before they reach aquatic ecosystems.
Removal of polystyrene nanoparticles using MgAl layered double hydroxide membranes synthesized on aluminum plates
Researchers synthesized magnesium-aluminum layered double hydroxide (LDH) membranes on aluminum plates in just 10 minutes and tested them for removing nanoplastic particles from water, finding strong adsorption of both 100 nm and 1 micrometer polystyrene nanoparticles. The easy-to-make, sheet-like membranes offer a simple and scalable approach to filtering nanoplastics from drinking water and other water sources.
Efficient heavy metals and salts rejection using a novel modified polysulfone nanofiltration membrane
Researchers developed a modified membrane filter using a functionalized silica material (H-KIT-6) embedded in polysulfone to remove heavy metals and salts from contaminated water with up to 99.85% efficiency. This improved nanofiltration membrane also resists clogging better than standard membranes, making it a practical candidate for purifying industrial wastewater and brackish drinking water sources.
Double-Modified Composite Membranes with Organic Framework Nanoparticles for Nanoplastics Removal: Insights from Density Functional Theory Modeling
Researchers developed a dual-modified composite membrane combining hydrogen-bonded organic framework and metal-organic framework nanoparticles, achieving both high water permeability and strong rejection of nanoplastic particles, outperforming single-modification membranes in water treatment performance.
Optimized Polymeric Membranes for Water Treatment: Fabrication, Morphology, and Performance
This review examines advances in polymer membrane design for water purification, focusing on how chemical functionalization and fabrication methods determine membrane performance. Researchers highlight promising developments incorporating metal-organic frameworks, covalent organic frameworks, and graphene into polymer membranes for selectively removing toxic metals and chemicals. The study emphasizes that choosing the right polymer chemistry and morphology is critical for developing efficient water treatment systems.
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.
Preparation of a novel reusable 2D-MXene with flower-like LDH composite for ultra-high adsorption of congo red and doxycycline: Stability and environmental application
Scientists created a new recyclable material combining MXene and layered double hydroxides that can remove over 98% of certain pollutants from wastewater. While this study focused on dye and antibiotic removal rather than microplastics directly, the same type of advanced filtration technology could be adapted to help remove micro- and nanoplastic contaminants from water supplies.
Supramolecular nanocrystalline membranes with well-aligned subnanochannels for enhanced reverse osmosis desalination
Researchers engineered a 6-nanometer-thick membrane with precisely aligned sub-nanometer channels that filters seawater more efficiently than commercial reverse osmosis membranes, removing 99.6% of salt while passing water 2–4 times faster. The membrane also showed exceptional resistance to chlorine, boron, and extreme pH, pointing toward more durable and effective desalination technology.
Recent 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.
Fabrication of O‑enriched macroporous polymer for the efficient adsorption organic acid from aqueous solution
Researchers created a porous polymer material rich in oxygen-containing groups that efficiently adsorbs organic acids from water, with adsorption capacities exceeding 400 mg/g for some compounds. The material can be regenerated for repeated use, making it a candidate for water purification applications.
Metal Organic Framework Based Membranes for Efficient Wastewater Purification: Syntheses and Applications: A Review
This review synthesizes research on metal-organic framework (MOF) based membranes for wastewater treatment, examining the synthesis methods, tunable pore geometries, and applications of MOF membranes in removing contaminants including heavy metals, dyes, and pharmaceuticals from water.
A reusable mesoporous adsorbent for efficient treatment of hazardous triphenylmethane dye wastewater: RSM-CCD optimization and rapid microwave-assisted regeneration
Researchers synthesized a porous nanomaterial made from calcium and aluminum that can adsorb large amounts of the toxic industrial dye malachite green from wastewater, then rapidly regenerate it for reuse using microwave heating — retaining over 90% efficiency after five cycles. The approach offers an energy-efficient and reusable solution for removing hazardous organic pollutants from industrial wastewater.
Elucidating governing factors of PFAS removal by polyamide membranes using machine learning and molecular simulations
Researchers used machine learning models to identify the key factors controlling how well polyamide membranes filter out PFAS — the so-called 'forever chemicals' that contaminate drinking water — finding that electrical charge interactions between the chemicals and the membrane are the dominant force. This approach offers a data-driven way to design better water filtration membranes for removing these persistent pollutants.
Selective Removal of Anionic and Cationic Dyes Using Magnetic Composites
Researchers synthesized a composite material combining zinc-aluminum layered double hydroxide with magnetic biochar and tested it for removing dyes from water. The composite effectively adsorbed both positively and negatively charged dyes, and its magnetic properties allowed easy recovery from solution. The study demonstrates that this type of composite adsorbent could be a practical, reusable tool for treating dye-contaminated wastewater.
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.
Regeneratable lignosulfonic acid/PDADMAC polyelectrolyte-microfiltration (MF) membrane for reactive dye removal: Effects of post treatment and interference of microplastic and microfibers
Researchers developed a new membrane coating made from lignin — a natural wood compound — that can remove over 98% of reactive dyes from wastewater, far outperforming standard microfiltration membranes, while also being regenerable for reuse. The study also tested how the presence of microplastics and microfibers interferes with the membrane's filtration performance, a key real-world consideration for industrial wastewater treatment.
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.
Superhydrophilic adsorptive nanofiber membranes for ultrafast and highly-efficient waterborne nanoplastic removal
Researchers engineered a superhydrophilic nanofiber membrane by cross-linking polyethylene oxide into a polylactic acid polymer network, achieving greater than 99.99% separation efficiency for nanoplastics larger than 150 nm through combined hydrophobic and pi-pi molecular interactions, with water permeance 53 times higher than conventional membranes under gravity-driven flow.
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.
Fabrication of dual-charged MOF-based ultrafiltration membrane to remove charged nanoplastics from wastewater
Researchers developed a new type of water filter membrane that can remove over 99% of nanoplastics from wastewater while maintaining high water flow. The membrane uses metal-organic framework nanoparticles that repel plastic particles through electrical charges and physical filtering. This technology could help prevent nanoplastics, which are too small for conventional filters, from reaching drinking water sources.