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61,005 resultsShowing papers similar to Actinide ion (Americium-241 and Uranium-232) Interaction with Hybrid Silica-Hyperbranched Poly(ethylene imine) Nanoparticles and Xerogels
ClearActinide Ion (Americium-241 and Uranium-232) Interaction with Hybrid Silica–Hyperbranched Poly(ethylene imine) Nanoparticles and Xerogels
Researchers studied the adsorption of americium-241 and uranium-232 from aqueous solutions by hybrid silica-hyperbranched poly(ethylene imine) nanoparticles and xerogels at pH 4, 7, and 9. Both materials achieved removal efficiencies above 70% at pH 4 and 7 for both actinides, with adsorption governed by diffusion from the aqueous phase, enhanced by increasing temperature in an endothermic entropy-driven process.
Comparative Study of the U(VI) Adsorption by Hybrid Silica-Hyperbranched Poly(ethylene imine) Nanoparticles and Xerogels
This paper is not about microplastics; it compares silica-based nanoparticle and xerogel adsorbents for removing uranium from contaminated water, finding both materials have high sorption capacity for purification applications.
Comparative Study of the U(VI) Adsorption by Hybrid Silica-Hyperbranched Poly(ethylene imine) Nanoparticles and Xerogels
Researchers compared the uranium(VI) adsorption performance of two silica-hyperbranched poly(ethylene imine) conformations — xerogels and nanoparticles — synthesized via dendritic polymer mediation, evaluating the effects of temperature, electrostatic forces, and adsorbent composition on uranyl cation removal at low pH.
Radionuclide Removal from Aqueous Solutions Using Oxidized Carbon Fabrics
This paper is not directly about microplastics; it investigates the adsorption of radioactive actinide ions (americium and uranium) from water using carbon fabric materials, finding near-complete removal of uranium under optimal pH and temperature conditions.
Radionuclide Removal from Aqueous Solutions by Oxidized Carbon Fabrics
Researchers investigated the adsorption of americium(III) and uranium(VI) from aqueous solutions by pristine and oxidized carbon fabrics using batch experiments across pH values of 4, 7, and 10. The study found that oxidative surface treatment of carbon fabrics enhanced actinide ion uptake, demonstrating the potential of modified carbon materials for radionuclide removal from contaminated water.
Americium Sorption by Microplastics in Aqueous Solutions
Researchers investigated americium sorption by polyamide and polyethylene microplastics in both deionized water and seawater, tracing interactions with Am-241 isotope and examining the effects of pH and solution composition on sorption efficiency over time. The study found that microplastic type and aqueous matrix composition significantly influenced radionuclide uptake, with implications for the transport of radioactive contaminants in marine environments.
The interaction of two emerging pollutants, radionuclides and microplastics: In-depth thermodynamic studies in water, seawater, and wastewater
Laboratory experiments measured how polyurethane and polylactic acid microplastics adsorb radioactive uranium and americium from water under conditions mimicking seawater and wastewater. The results show that microplastics can accumulate radionuclides from contaminated water environments, raising the possibility that plastic particles could act as unexpected carriers of radioactive contamination through aquatic food webs.
Structure–function correlation of branched and linear polyaramides for the removal of pollutants from water
A series of branched and linear polyaramides were synthesized and evaluated for removing dissolved pollutants from water, with both nanoplastic particles and dyes effectively removed through adsorption, demonstrating that polyaramide architecture significantly influences pollutant removal performance.
Microplastics and disposable face masks as “Trojan Horse” for radionuclides pollution in water bodies – A review with emphasis on the involved interactions
Researchers reviewed how microplastics and disposable face masks can adsorb radioactive particles (radionuclides like cesium-137 and uranium) and carry them through water environments, potentially concentrating radiation in the food chain. Key factors affecting this process include plastic type, particle size, and water chemistry, with some polymers showing adsorption partition coefficients as high as 2670 L/kg.
Interaction between Uranyl Cations and Layered Double Hydroxide Nanoparticles: Implications for Nuclear Wastewater Management
Researchers investigated the interaction between uranyl cations and magnesium-aluminum layered double hydroxide nanoparticles, finding that uranium influenced nanoparticle growth and surface properties but was not incorporated into the crystal structure. Aggregation behavior was significantly altered in solutions containing silicate and phosphate ions relevant to nuclear wastewater.
Polymer-based nanocarriers for biomedical and environmental applications
This review covers the fabrication, design, and applications of polymer-based nanocarriers in biomedical and environmental fields. The study highlights their use in targeted drug delivery and cancer therapy, as well as their ability to remove heavy metals and contaminants from air and water, while noting current challenges for future development.
Current Status and Advancement of Nanomaterials within Polymeric Membranes for Water Purification
This review examines advances in nanomaterial-enhanced polymeric membranes for water purification, including the removal of contaminants like heavy metals, organic pollutants, and microplastics. Researchers highlight how integrating materials such as metal nanoparticles, nanofibers, and graphene oxide can improve membrane performance for filtering various waterborne pollutants. The study suggests these technologies hold promise for addressing growing challenges in water contamination.
Removal of nanoparticles (both inorganic nanoparticles and nanoplastics) in drinking water treatment – coagulation/flocculation/sedimentation, and sand/granular activated carbon filtration
Researchers reviewed the removal of inorganic nanoparticles and nanoplastics during conventional drinking water treatment, finding that coagulation/flocculation/sedimentation and sand/granular activated carbon filtration can substantially reduce nanoparticle concentrations but with variable efficiency depending on particle type.
Ionizing Radiation: Chemical Kinetics, Chemical Bounds, and RadiationChemistry on Polymers
This review examines the chemical kinetics, bond chemistry, and radiation chemistry underlying the use of ionizing radiation on polymeric materials, covering applications in both material development and the elimination of harmful compounds from solutions. The authors conclude that ionizing radiation is a versatile tool for controlled modification of polymer structures with broad scientific and industrial relevance.
Uranium accumulation in environmentally relevant microplastics and agricultural soil at acidic and circumneutral pH
Researchers examined how uranium interacts with high-density polyethylene microplastics and agricultural soil at different pH levels. The study found that while soil rapidly removed most aqueous uranium, microplastics accumulated measurable amounts of uranium over time, raising concerns about microplastics acting as carriers for radioactive contaminants in the environment.
Developments in the Application of Nanomaterials for Water Treatment and Their Impact on the Environment
This review covers the application of nanomaterials for water treatment and remediation, evaluating how nanomaterial properties enable removal of pollutants including heavy metals, organic contaminants, and microplastics. It surveys the current state of research and discusses practical challenges for scaling up nanomaterial-based water treatment.
Harnessing Nanomaterials for Water Decontamination: Insights into Environmental Impact, Sustainable Applications, and the Emerging Role of Polymeric Nanostructures
This review examines how nanomaterials can be used for water decontamination, including the removal of microplastics from aquatic environments. Researchers found that properties like large surface area and high reactivity make nanomaterials effective at addressing water pollution, though concerns remain about the environmental persistence and potential secondary effects of the nanomaterials themselves.
Conventional technologies and recent developments in the nanotechnological approach for the remediation of persistent organic pollutants
This is not primarily about microplastics — it is a review of nanotechnological approaches to removing persistent organic pollutants (POPs) from the environment, covering a broad range of contaminants and treatment strategies with only tangential connection to plastic pollution.
The Interaction of Two Emerging Pollutants, Radionuclides and Microplastics: In-Depth Thermodynamic Studies in Water, Seawater, and Wastewater
This study examined how two radioactive isotopes — uranium-232 and americium-241 — interact with polyurethane and polylactic acid microplastics in freshwater, seawater, and wastewater under varying pH and temperature conditions. Microplastics were found to adsorb both radionuclides, with temperature and pH strongly influencing the binding, though natural water chemistry reduced adsorption efficiency significantly. The findings raise concern that microplastics in nuclear-adjacent or contaminated water bodies could act as carriers, concentrating and potentially transporting radioactive pollutants through aquatic systems.
A Preliminary Study on the “Hitchhiking” of Radionuclides on Microplastics: A New Threat to the Marine Environment from Compound Pollution
This preliminary study examined whether radionuclides can adsorb onto microplastic surfaces and be transported through the environment alongside them, identifying the physicochemical properties of microplastics that facilitate radionuclide hitchhiking and the associated contamination risks.
Unfolding the interaction of radioactive Cs and Sr with polyethylene-derived microplastics in marine environment
A mesocosm study examined how radioactive cesium and strontium interact with pristine, radiation-exposed, and marine-weathered polyethylene microplastics, finding that environmental aging—through biofilm formation and surface roughening—significantly increased the plastic particles' capacity to sorb radioactive contaminants.
Biosorption of uranium from water on polymethylmethacrylate microplastic immobilized with Saccharomyces cerevisiae: a sustainable approach
Polymethylmethacrylate (PMMA) microplastics immobilized with Saccharomyces cerevisiae yeast cells were evaluated as biosorbents for uranium removal from water, demonstrating effective uptake and providing a sustainable microplastic-microbe system for radionuclide decontamination.
Comparative study of the influence of linear and branched alkyltrichlorosilanes on the removal efficiency of polyethylene and polypropylene-based microplastic particles from water
Researchers compared the effectiveness of linear versus branched alkyltrichlorosilanes as silicon-based precursors for agglomerating and removing microplastics from water, finding that structural differences in the alkyl chains significantly affect agglomeration efficiency. The study advances a chemical removal concept for microplastic extraction from aquatic environments.
Cesium removal from radioactive wastewater by adsorption and membrane technology
This review covers adsorption and membrane technologies for removing radioactive cesium from contaminated wastewater, comparing the effectiveness of various materials and filtration methods. While not directly about microplastics, the study discusses how emerging nanomaterials and membrane systems used for radioactive waste treatment overlap with technologies being developed for microplastic removal. The findings highlight advances in water purification that may have broader applications for filtering multiple types of pollutants.