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61,005 resultsShowing papers similar to Upcycling Glass Waste into Porous Microspheres for Wastewater Treatment Applications: Efficacy of Dye Removal
ClearAdsorption of acid and basic dye from the simulated wastewater using carbonized microplastic particles synthesized from recycled polyethylene terephthalate plastic waste bottles: an integrated approach for experimental and practical applications
Researchers carbonized waste PET plastic bottles to create microplastic-like adsorbent particles and demonstrated their effectiveness in removing over 99% of methylene blue and methyl orange dyes from simulated wastewater, with adsorption optimized by response surface methodology and confirmed as exothermic, spontaneous, and applicable to real wastewater.
Rapid adsorptive removal of eosin yellow and methyl orange using zeolite Y
Researchers synthesized zeolite Y using an energy-efficient method that recycles waste heat from a chemical reaction instead of external heating, then tested it as an adsorbent to remove two industrial dyes from water. The zeolite effectively removed both dyes, with adsorption best described by standard mathematical models, indicating its potential as a low-cost material for treating dye-contaminated wastewater.
Removal of Microplastics and Performance of a Developed Ceramic Filter
Researchers developed a ceramic filter from clay and waste glass with varying porogenic agent content and firing temperatures, then evaluated water permeability, element leaching, and microplastic removal efficiency. The formulation without a porogenic agent achieved the highest microplastic removal rate of nearly 99.8%, demonstrating that optimizing porosity and filtration pressure is key to effective and affordable microplastic filtration.
Optimization of methylene blue dye degradation using heterogeneous Fenton-like reaction with Fe3O4 nanoparticles/PVDF macrospheres: A response surface methodology approach
Researchers characterized polypropylene microplastics using SEM and FTIR analysis, finding irregular shapes with cracks and a size distribution of 14-96 micrometers, and tested sodium lauryl sulfate at 5% concentration as an effective dispersant for improving stability in suspension. The study provides foundational insights into polypropylene microplastic physical and chemical properties relevant to toxicological testing and environmental fate studies.
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.
TEMPO-oxidized cellulose beads for cationic dye adsorption
Researchers developed TEMPO-oxidized regenerated cellulose beads using a falling ball technique and tested their ability to remove cationic methylene blue dye from wastewater, achieving an adsorption capacity of 495 mg/g at pH 7 through strong electrostatic interactions, with data fitting the Langmuir isotherm and pseudo-second-order models.
Graphene oxide incorporated cellulose acetate beads for efficient removal of methylene blue dye; isotherms, kinetic, mechanism and co-existing ions studies
Researchers developed graphene oxide-incorporated cellulose acetate beads for removing methylene blue dye from water, achieving a maximum adsorption capacity of 369.85 mg/g with excellent reusability, offering a sustainable alternative to microplastic-based adsorbents.
Preparation and Characterization of Chabazite from Construction Waste and Application as an Adsorbent for Methylene Blue
Researchers converted construction waste into a mineral adsorbent called chabazite that effectively removes the dye methylene blue from water. Developing adsorbents from waste materials for water treatment could also address the co-contaminants that sorb onto microplastics in polluted water.
The removal of methylene blue from aqueous solutions by polyethylene microplastics: Modeling batch adsorption using random forest regression
This study found that polyethylene microplastics can effectively absorb methylene blue dye from water, demonstrating that microplastics act as sponges for other pollutants in the environment. The microplastics could be reused for dye removal across multiple cycles, confirming their strong binding capacity. While this property could theoretically be useful for water cleanup, it also means that microplastics in the environment absorb and carry toxic chemicals, which can then be released inside the body when microplastics are ingested.
Development of a hybrid filter media for microplastic removal from wastewater
Researchers developed hybrid glass fiber filter media incorporating glass and electrospun polymer nanofibers—both blended into the matrix and applied as surface layers—to improve microplastic removal efficiency from wastewater compared to standard filtration media.
Investigating the Recycling Potential of Glass Based Dye-Sensitized Solar Cells—Melting Experiment
This engineering study investigated whether glass-based dye-sensitized solar cells could be recycled by melting, finding that the glass could be recovered but some components were not fully recyclable. This paper focuses on solar energy recycling and is not related to microplastics or human health from plastic exposure.
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.
Influence of Hydrothermal Modification on Adsorptive Performance of Clay Minerals for Malachite Green
This paper is not about microplastics. It studied how hydrothermal modification of clay minerals improves their ability to adsorb malachite green dye from wastewater. The research is focused on materials science and water treatment for dye removal, with no connection to microplastic contamination or health effects.
Optimising the adsorption characteristics of spent coffee grounds by thermal and chemical activation
Researchers optimized the adsorption properties of spent coffee grounds by testing thermal activation and phosphoric acid treatment, finding that heating at 600°C increased specific surface area by 72% while acid treatment provided further improvements. The study identified conditions for maximum methylene blue dye adsorption, suggesting spent coffee grounds as a potential low-cost water treatment adsorbent.
Synthesis, Characterization, and Antibacterial Efficacy of Borosilicate Compound against Escherichia coli
This study synthesized a borosilicate compound from recycled glass and natural clays, creating an upcycled material with antibacterial properties. The work demonstrates how fine glass fractions that are currently landfilled can be transformed into higher-value functional materials with potential applications in water treatment and antimicrobial surfaces.
Adsorption properties of polyethylene microplastics as a function of their shape
Researchers investigated how the shape of polyethylene microplastics — comparing spheres, fragments, and films of comparable size (~100 µm) and surface area — affects their adsorption rate and capacity using methylene blue dye as a model sorbate. The study found that particle shape significantly influenced adsorption behaviour, highlighting an often-overlooked variable in assessments of microplastic interactions with environmental pollutants.
Microplastics in facial cleanser: extraction, identification, potential toxicity, and continuous-flow removal using agricultural waste–based biochar
Researchers extracted and identified polyethylene microbeads from a commercial facial cleanser, then tested whether these particles could carry toxic dyes. The microplastics readily adsorbed both methylene blue and methyl orange dye from water, confirming their potential to act as pollutant carriers. The study also demonstrated that biochar made from agricultural waste could effectively remove these microplastics from water in a continuous-flow system.
Adsorption of crystal violet on polystyrene microplastics in aqueous: optimization, modeling, and assessment of isotherms and kinetics
Researchers showed that polystyrene microplastics can efficiently absorb crystal violet dye — a toxic industrial dye — from water, with optimal removal near 85% under controlled conditions. The study highlights that microplastics don't just pollute on their own; they also act as sponges that carry harmful chemical contaminants through aquatic environments.
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.
An ignored potential microplastic contamination of a typical waste glass recycling base
Researchers found that a typical waste glass recycling facility is an overlooked source of microplastic contamination, releasing plastic particles into the surrounding environment through its operations.
Removal of nano-sized polystyrene plastic from aqueous solutions using untreated coffee grounds
Researchers tested untreated coffee grounds as a low-cost biosorbent for removing nanoplastics from water, finding up to 74% removal efficiency across a wide pH range within 40 minutes, with electrostatic interactions and hydrogen bonding between coffee ground surface groups and the polystyrene particles driving adsorption.
Engineering a chitosan-encapsulated PDA/Fe3O4@cenosphere composite for dual adsorption of microplastics and organic dyes
Researchers engineered a composite adsorbent from industrial fly ash waste by coating cenospheres with polydopamine and iron oxide, then encapsulating them in chitosan beads. The resulting material demonstrated high adsorption capacity for both polystyrene microplastics and organic dyes, and could be magnetically recovered for reuse. The study presents a sustainable approach to water remediation that simultaneously addresses microplastic and dye pollution using repurposed industrial waste.
Removal of PET Microfibers from Simulated Wastewater Using Magnetic Nano-Ferric-Loaded Biochar: High Adsorption and Regeneration Performance
A magnetic nano-iron-oxide-loaded biochar adsorbent achieved over 99% removal of PET microfibers from simulated wastewater and showed strong regeneration performance over multiple cycles, offering a practical and recyclable treatment solution for textile microfiber pollution.
The Optimal Concentration of Nanoclay Hydrotalcite for Recovery of Reactive and Direct Textile Colorants
Researchers determined the optimal concentration of nanoclay hydrotalcite for adsorbing reactive and direct textile dyes from wastewater, finding that the material effectively removed colorants while enabling analysis of metal ion displacement during adsorption, offering insights for more sustainable textile dyeing wastewater treatment.