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Papers
61,005 resultsShowing papers similar to Electronic Structure and Mechanical Properties of Solvated Montmorillonite Clay Using Large-Scale DFT Method
ClearMechanistic insights into PVC microplastic adsorption on montmorillonite: A first-principles approach toward pollution control
Researchers used computational modeling to study how PVC microplastic fragments interact with montmorillonite clay, a common soil mineral. The simulations revealed that vinyl chloride molecules adsorb onto clay surfaces through weak noncovalent interactions rather than chemical bonding, providing mechanistic insights that could inform the development of clay-based approaches for microplastic remediation in contaminated water and soil.
Strength Characteristics of Clay Soil Reinforced with Natural Fibers
Not relevant to microplastics — this study examines the mechanical properties of clay soil reinforced with natural plant fibers for geotechnical engineering applications.
Effects of microplastic contamination on the hydraulic, water retention, and desiccation crack properties of a natural clay exposed to leachate
Researchers examined how microplastic contamination affects the physical properties of natural clay soil exposed to landfill leachate. They found that microplastics significantly increased the soil's water permeability, reduced its water retention capacity, and altered desiccation cracking patterns. The findings suggest that microplastic pollution could compromise the integrity of clay barriers used in landfill liners and other engineering applications.
A Critical Review of Clay Minerals for Groundwater Protection and Treatment
Not relevant to microplastics — this chapter reviews how clay minerals, particularly montmorillonite, act as natural barriers and adsorbents for groundwater contaminants through cation exchange and filtration, including engineered applications in remediation.
Different inhibitory mechanisms of flexible and rigid clay minerals on the transport of microplastics in marine porous media
Experiments showed that flexible montmorillonite clay formed tight coatings around microplastics that retarded their transport through marine porous media, while rigid kaolinite formed weaker attachments that were more easily disrupted by high salinity.
Understanding the structure, distribution, and retention of nanoplastics in montmorillonite nanopore by multi-scale computational simulations
Researchers investigated the structure, distribution, and retention mechanisms of nanoplastics in montane stream sediments, finding that nanoplastic particles preferentially accumulated in fine-grained sediment fractions and that organic matter coating enhanced retention.
Effects of clay minerals on the transport of nanoplastics through water-saturated porous media
Column experiments with clay-containing saturated porous media showed that clay minerals reduced nanoplastic transport by enhancing particle retention through bridging flocculation and charge neutralization, with kaolinite having greater retention effects than montmorillonite, informing predictions of nanoplastic mobility in clay-rich soils.
Molecular Dynamics Study on the Effect of Moisture Content on the Mechanical Properties of Amorphous Cellulose
This molecular dynamics study investigated how increasing moisture content weakens the mechanical properties of amorphous cellulose at the molecular level. Understanding this moisture-property relationship is important for developing cellulose-based green materials and biodegradable plastics that could replace conventional synthetic polymers.
Microplastics in soils: an environmental geotechnics perspective
This geotechnical engineering perspective reviewed microplastic contamination in soils and the terrestrial subsurface, examining how MPs alter soil mechanical properties — including shear strength, hydraulic conductivity, and compressibility — and arguing that geotechnical impacts have been underappreciated in environmental assessments.
Geopolymer-based techniques for stabilization of microplastic contaminated expansive soil
This review investigates how microplastic contamination in clay-rich (expansive) soils alters their structural stability, and how geopolymer-based treatments can help. Microplastics disrupt the shrink-swell behavior of these soils, potentially destabilizing foundations and infrastructure built on them. The findings matter because agricultural and construction soils increasingly contain microplastics, and this work points toward chemical stabilization strategies that could reduce the resulting engineering hazards.
Metal-organic frameworks and composites on their basis: structure, synthesis methods, electrochemical properties and application prospects (a review)
Not relevant to microplastics — this is a materials science review focused on the structure, synthesis, and electrochemical applications of metal-organic frameworks (MOFs), particularly for supercapacitor electrodes.
Mechanisms of increased small nanoplastic particle retention in water-saturated sand media with montmorillonite and diatomite: Particle sizes, water components, and modelling
Researchers compared how clay minerals (diatomite and montmorillonite) affect the transport of 20 nm and 80 nm polystyrene nanoplastics through water-saturated sand columns, finding that very small nanoplastics (20 nm) can enter diatomite's porous lattice structure, enhancing their retention, while montmorillonite more broadly inhibited transport of both sizes.
Coarse-Grained Simulations of the Nanoplastic Interactionwith Soil Organic Matter
Researchers used coarse-grained molecular simulations to investigate how nanoplastics interact with soil organic matter at the molecular level, finding that nanoplastic particle properties strongly influence their binding behavior and ecological risk in terrestrial ecosystems.
Investigation of Mechanical and Thermal Performance of Nanoclay Modified Concrete for Energy Efficiency
Not relevant to microplastics — this paper reviews how adding nanoclay modifies the mechanical and thermal properties of concrete, focusing on fire resistance, thermal conductivity, and structural performance in construction.
Experimental and mathematical investigation of cotransport of clay and microplastics in saturated porous media
This study investigated how microplastics travel through underground soil and sand, finding that clay particles in the soil can actually help microplastics move farther by changing how they interact with soil surfaces. The research developed a mathematical model to predict this movement. Understanding how microplastics travel through soil is important because it affects whether they reach and contaminate groundwater used for drinking.
A Novel Equivalent Method for Computing Mechanical Properties of Random and Ordered Hyperelastic Cellular Materials
This engineering paper develops a computational method for predicting the mechanical properties of cellular foam materials using equivalent structural models. The study is focused on materials engineering and is unrelated to microplastic research.
Effects of co-present mineral colloids on the transport of microplastics in porous media: The key role of hydrochemical and hydrodynamic conditions
Scientists studied how tiny plastic particles (microplastics) move through soil and sand when mixed with natural clay particles. They found that the combination of different clay types and water conditions can either help microplastics travel further underground or trap them in place. This research helps us better understand how microplastics might contaminate groundwater sources that provide our drinking water.
Experimental Tests on Lightweight Cement Mortar and Concrete with Recycled Plastic Wastes
This paper is not relevant to microplastics research — it tests the mechanical properties of cement mortar and concrete incorporating recycled plastic waste granules as aggregate substitutes, a construction materials engineering study.
Interaction between microplastics and humic acid and its effect on their properties as revealed by molecular dynamics simulations
Researchers used molecular dynamics simulations to study how microplastics interact with humic acid, a natural organic compound found in soil and water. They found that microplastics disrupted the hydrogen bonding and calcium coordination within humic acid, altering its structure and properties. The study suggests that when microplastics and humic acid combine in the environment, both materials behave differently than they would alone, which could affect pollutant transport in natural systems.
Identification of microplastics from urban informal solid waste landfill soil; MP associations with COD and chloride
Researchers identified microplastic concentrations of 180–1,120 particles per kilogram of soil in an urban informal landfill in India, with fragments and fibers as the dominant shapes, and found that microplastic presence altered key soil properties including conductivity and moisture content.
Water retention and hydraulic properties of a natural soil subjected to microplastic contaminations and leachate exposures
Researchers studied how microplastic contamination affects the water-holding and flow properties of compacted soil, a scenario relevant to engineering applications like landfill liners. They found that microplastics altered the soil's ability to retain water and changed both saturated and unsaturated hydraulic conductivity, with effects varying by particle size and leachate age. The study suggests that microplastic-contaminated soils may behave differently than expected in engineered structures.
Effects of clay minerals on the transport of polystyrene nanoplastic in groundwater
Researchers investigated how clay minerals affect nanoplastic transport in groundwater, finding that montmorillonite, kaolinite, and illite each uniquely influenced polystyrene nanoparticle mobility, with montmorillonite showing the strongest retention capacity due to its high surface charge.
Review of the Application of Attapulgite and Their Colloids
This review summarizes the properties, preparation, and applications of attapulgite clay colloids in various fields including environmental remediation. Clay-polymer composite materials show promise for adsorbing and removing microplastics from water systems.
Modelling the effect of microplastics on soil capillary and film water content and flow
Researchers used physical modelling to investigate how microplastics of different polymer types — including PBAT, LDPE, and others — affect soil capillary and film water content and flow, finding that MP presence alters pore-scale water dynamics in ways that influence subsurface water storage and plant water uptake.