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A Comparative Sorption Study for Phenol & Tricholorophenol onto Polyethylene Type Microplastics
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Researchers compared how phenol and 2,3,6-trichlorophenol sorb onto polyethylene microplastics, finding that the more hydrophobic chlorinated compound had significantly higher affinity for the plastic surface. The study contributes to understanding how microplastics may transport and concentrate organic pollutants in freshwater environments.
In freshwater systems, microplastics and organic contaminants are prevalent pollutants. Using kinetics and isotherm analyses, this research investigates the sorption of two organic compounds (Phenol and 2,3,6-Trichlorophenol) on pristine polyethylene (PE). The hydrophilic nature of phenol is hypothesized to have low affinity for PE, on the contrary, 2,3,6-TCP is expected to have higher affinity. The goal of this study is to compare the interactions between PE and two extensively used yet physio-chemically distinct chemicals. Experimental results show 2,3,6-TCP sorption is fast (teq=24hr) with qeq 180 µg/g, while phenol sorption is slow (teq=28days), with non-detectable capacity. PE sample, having medium to high density and crystallinity seems to result in longer equilibration times and lower sorption capacity when compared to other MPs studied in the literature.
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Adsorption mechanisms of chlorobenzenes and trifluralin on primary polyethylene microplastics in the aquatic environment
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Researchers investigated the adsorption mechanisms of six priority chlorinated and aromatic pollutants (including trichlorobenzenes and trifluralin) onto primary polyethylene microplastics, revealing how plastic type, surface area, and compound properties govern contaminant uptake in aqueous environments.
Modelling of the adsorption of chlorinated phenols on polyethylene and polyethylene terephthalate microplastic
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This study modeled how chlorinated phenols — toxic water pollutants — stick to polyethylene and polyethylene terephthalate microplastics sourced from personal care products. The findings suggest microplastics can act as carriers for harmful chemicals in aquatic environments, potentially concentrating toxins and delivering them to organisms that ingest the particles.
Significance of Chlorinated Phenols Adsorption on Plastics and Bioplastics during Water Treatment
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Microplastics and bioplastics both adsorb toxic chlorinated phenol compounds from freshwater, with adsorption rates depending on the plastic type and contaminant. This finding shows that even bioplastic alternatives to conventional plastic can act as carriers for toxic chemicals in aquatic environments.
Sorption of non-polar organic compounds by micro-sized plastic particles in aqueous solution
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This study measured the sorption of non-polar organic compounds by micro-sized plastic particles in aqueous solution, finding that different polymer types varied significantly in their ability to accumulate hydrophobic contaminants.
Prediction of organic compounds adsorbed by polyethylene and chlorinated polyethylene microplastics in freshwater using QSAR
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Researchers used QSAR modeling to predict the adsorption behavior of 13 organic compounds onto polyethylene and chlorinated polyethylene microplastics under freshwater conditions, finding that most chemicals exhibited higher adsorption to chlorinated polyethylene than to standard polyethylene.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.