We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
20 resultsShowing papers similar to The Effect of Different Aging Methods on the Heavy Metal Adsorption Capacity of Microplastics
ClearAdsorption properties and mechanism of Cu(II) on virgin and aged microplastics in the aquatic environment
Researchers examined how UV aging changes the surface properties of polyamide and polylactic acid microplastics and affects their ability to adsorb copper ions in water. The study found that UV irradiation altered the physical and chemical characteristics of both plastic types, increasing their capacity to bind heavy metals. Evidence indicates that weathered microplastics may act as more effective carriers of heavy metal contaminants in aquatic environments compared to virgin plastics.
Aging mechanism of microplastics with UV irradiation and its effects on the adsorption of heavy metals
Researchers aged polystyrene microplastics using UV irradiation under three conditions (air, pure water, seawater) and found that aging changed surface chemistry and increased the microplastics' capacity to adsorb heavy metals, with seawater aging producing the most pronounced surface oxidation.
Adsorption behavior of UV aged microplastics on the heavy metals Pb(II) and Cu(II) in aqueous solutions
Researchers examined how UV aging affects the adsorption of lead and copper onto polypropylene, polyethylene, and polystyrene microplastics, finding that aging creates new oxidation functional groups that enhance heavy metal adsorption capacity.
Adsorption properties and mechanism of Cu(Ⅱ) on virgin and aged microplastics in the aquatic environment
This study examined how UV aging of polyamide (PA) and polylactic acid (PLA) microplastics affects their ability to adsorb copper (Cu II) from water. UV aging increased surface area and altered surface chemistry, making aged microplastics better carriers of copper contamination — raising concerns that weathered plastics in the environment may concentrate and transport heavy metals more effectively than fresh plastics.
Adsorption of Cu2+ by UV aged polystyrene in aqueous solution
UV-aged polystyrene microplastics showed altered surface chemistry and enhanced adsorption of copper ions compared to virgin particles, with the degree of adsorption increasing with aging duration. The findings indicate that environmental weathering transforms microplastics into more potent heavy metal carriers, intensifying their role as pollutant vectors.
Study on the Adsorption Behavior and Mechanism of Heavy Metals in Aquatic Environment before and after the Aging of Typical Microplastics
Researchers investigated the adsorption behavior and mechanisms of heavy metals by typical microplastics before and after environmental aging, finding that aging significantly alters microplastics' surface properties and capacity to bind metals such as cadmium and lead in aquatic systems.
Aging of polylactic acid microplastics during hydrothermal treatment of sewage sludge and its effects on heavy metals adsorption
Researchers examined how hydrothermal treatment of sewage sludge causes polylactic acid microplastics to age, and how this aging changes their heavy metal adsorption capacity. Hydrothermal treatment accelerated PLA-MP degradation, increasing surface oxygen groups and enhancing adsorption of copper, cadmium, and lead compared to untreated particles.
Unraveling Complexation and Contaminant Vector Potential in Aged Polyamide-Heavy Metal Interactions
Researchers found that heat-aged polyamide microplastics exhibit enhanced adsorption capacity for cadmium and copper compared to virgin material, with copper showing higher adsorption efficiency due to its smaller hydrated ionic radius and strong coordination with oxygen- and nitrogen-containing surface groups on the aged polymer.
Fenton aging significantly affects the heavy metal adsorption capacity of polystyrene microplastics
Researchers aged polystyrene microplastics using H2O2 and Fenton reagent and found that Fenton aging significantly increased surface oxidation and the capacity to adsorb copper, zinc, and lead, with adsorption capacity increasing as a function of aging intensity.
Aging characteristics of polylatic acid microplastics and their adsorption on hydrophilic organic pollutants: mechanistic investigations and theoretical calculations
Researchers characterized how polylactic acid microplastics undergo UV and thermal aging in aquatic environments, finding that aging altered surface chemistry, increased hydrophilicity, and enhanced adsorption of heavy metal pollutants—raising concerns about aged biodegradable plastics as carriers of co-contaminants.
[Effects of Aging on the Cd Adsorption by Microplastics and the Relevant Mechanisms].
This study examined how aging affects the ability of microplastics — including polyethylene and polystyrene — to adsorb the heavy metal cadmium. Weathered microplastics showed different adsorption behavior than virgin particles, which has implications for how microplastics transport toxic metals through aquatic environments.
Adsorption Characteristics of Heavy Metals onto Functionalized Microplastics
This study tested how three types of functionalized microplastics—polyacrylate, biobased polyurethane, and petroleum-based polyurethane—absorb toxic heavy metals including lead, copper, and cadmium. Smaller particles and UV-weathered plastic showed higher adsorption, meaning aged microplastics in the environment can act as concentrated carriers of heavy metal contamination, amplifying ecological risk.
Aging properties of polyethylene and polylactic acid microplastics and their adsorption behavior of Cd(II) and Cr(VI) in aquatic environments
Researchers compared how polyethylene and polylactic acid (PLA) microplastics age in the environment and how that aging affects their ability to absorb heavy metals like cadmium and chromium from water. They found that aging changed the surface chemistry of both plastic types, increasing their capacity to pick up these toxic metals. The findings matter because aged microplastics in the environment may concentrate and transport more pollutants than fresh plastic particles.
Insights into the Adsorption of Copper/Zinc Ions over Aged Polyethylene and Polyethylene Terephthalate Microplastics
Researchers studied adsorption of copper and zinc ions onto aged polyethylene and polyethylene terephthalate microplastics, finding that weathering substantially increases heavy metal adsorption capacity and that pH and ionic strength govern the adsorption process.
Effects of biofilm on metal adsorption behavior and microbial community of microplastics
Researchers found that biofilm development on polystyrene microplastics enhanced their ability to adsorb copper and lead more than UV aging alone, with biofilm altering both the adsorption mechanisms and microbial community composition on the plastic surfaces.
The adsorption behavior of metals in aqueous solution by microplastics effected by UV radiation
Virgin and UV-aged PET microplastics were compared for their sorption capacity of copper and zinc ions, with aged microplastics showing higher adsorption due to increased surface area and oxygen-containing functional groups formed during photoaging. The study demonstrates that environmental weathering enhances the metal-carrying potential of microplastics over time.
Enhanced copper adsorption by polyamide and polylactic acid microplastics: The role of biofilm development and chemical aging
Researchers studied how chemical aging and biofilm growth on polyamide and polylactic acid microplastics changed their ability to absorb copper from water. Both processes significantly increased the surface area and chemical reactivity of the plastics, making them absorb substantially more copper than fresh microplastics. The study suggests that as microplastics age and develop biofilms in natural waterways, they become increasingly effective at concentrating heavy metals, potentially altering how these contaminants move through aquatic environments.
Unraveling Complexation and Contaminant Vector Potentialin Aged Polyamide-Heavy Metal Interactions
Researchers found that aged polyamide (PA) microplastics exhibited enhanced adsorption capacity for cadmium and copper compared to pristine PA, with increased surface roughness from aging promoting stronger metal binding via electrostatic interactions, and environmental factors such as pH influencing subsequent metal desorption.
Sorption properties of cadmium on microplastics: The common practice experiment and A two-dimensional correlation spectroscopic study
Laboratory experiments examined how cadmium adsorbs onto microplastics of different polymer types and aging states, finding that surface chemistry and weathering significantly affect how much heavy metal the plastics can carry. This matters because microplastics contaminated with heavy metals represent a dual pollution risk when ingested by aquatic organisms.
Study on Adsorption of Heavy Metals Cu and Zn by Microplastics Under Different Aged Factors
Researchers examined how aging of polyethylene microplastics under different conditions -- varying pH, dissolved organic matter, and hydrogen peroxide -- affects their adsorption of Cu and Zn, finding that H2O2-induced aging most strongly enhanced heavy metal sorption capacity.