Physisorption and Chemisorption Mechanisms Influencing Micro (Nano) Plastics-Organic Chemical Contaminants Interactions: A Review
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TLDR
In this paper, a review article draws on scientific literature to discuss inherent polymers typically used in plastics and their affinity for different organic contaminants, as well as the compositions, environmental factors, and polymeric properties that influence their variability in sorption capacities.Abstract:
Microplastics, which serve as sources and vector transport of organic contaminants in
both terrestrial and marine environments, are emerging micropollutants of increasing
concerns due to their potential harmful impacts on the environment, biota and human
health. Microplastic particles have a higher affinity for hydrophobic organic contaminants
due to their high surface area-to-volume ratio, particularly in aqueous conditions. However,
recent findings have shown that the concentrations of organic contaminants adsorbed on
microplastic surfaces, as well as their fate through vector distribution and ecological risks,
are largely influenced by prevailing environmental factors and physicochemical properties
in the aquatic environment. Therefore, this review article draws on scientific literature to
discuss inherent polymers typically used in plastics and their affinity for different organic
contaminants, as well as the compositions, environmental factors, and polymeric
properties that influence their variability in sorption capacities. Some of the specific
points discussed are (a) an appraisal of microplastic types, composition and their fate
and vector transport in the environment; (b) a critical assessment of sorption mechanisms
and major polymeric factors influencing organic contaminants-micro (nano) plastics (MNPs) interactions; (c) an evaluation of the sorption capacities of organic chemical
contaminants to MNPs in terms of polymeric sorption characteristics including
hydrophobicity, Van der Waals forces, π–π bond, electrostatic, and hydrogen bond
interactions; and (d) an overview of the sorption mechanisms and dynamics behind
microplastics-organic contaminants interactions using kinetic and isothermal models.
Furthermore, insights into future areas of research gaps have been highlighted.read more
Citations
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Two-Dimensional Gallium Oxide Monolayer for Gas-Sensing Application.
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Micro(nano)plastics Prevalence, Food Web Interactions, and Toxicity Assessment in Aquatic Organisms: A Review
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TL;DR: In this article , a review mainly addresses the prevalence, food web interactions, and toxicity assessment of micro(nano) plastics in marine and freshwater organisms, and summarizes documented studies based on the following broad objectives: (1) the occurrence and prevalence of micro-nano-plastic plastic particles in marine environments; (2) the ingestion of MNPs by aquatic biota and the food web exposure routes and bioaccumulation of contaminated MNPs, and (3) the adsorption and desorption of persistent organic pollutants, metals, and chemical additives on/from micro-plastics; and (4) the probable ecotoxicological effects of microplastic ingestion on aquatic organisms.
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Personal protective equipment (PPE) pollution in the Caspian Sea, the largest enclosed inland water body in the world
TL;DR: In this paper , the authors assessed PPE pollution in the Iranian coast of the Caspian Sea, the largest enclosed inland water body in the world by following standard monitoring procedures, and the results concerning the density (1.02 × 10-4 PPE/m2) composition (face masks represented 95.3% of all PPE) were comparable to previous studies in marine waters.
References
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Microplastics and nanoplastics in global food webs: A bibliometric analysis (2009–2019)
TL;DR: Keyword analysis reveals the shift of research hotspots from investigations on M/NPs absorbed by various organisms in the ecosystems to studies on the trophic transfer of M/ NPs and sorbed contaminants in the food webs and their associated adverse impacts.
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Microplastic ingestion by pelagic and demersal fish species from the Eastern Central Atlantic Ocean, off the Coast of Ghana.
Stella Aseye Adika,Edem Mahu,Richard A. Crane,Rob Marchant,Judith Montford,Regina Folorunsho,Christopher P. Gordon +6 more
TL;DR: The findings of the study show the common occurrence of microplastic in fish stocks and pave the way for future studies on microplastics in this Region.
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Polystyrene microplastics increase uptake, elimination and cytotoxicity of decabromodiphenyl ether (BDE-209) in the marine scallop Chlamys farreri.
Bin Xia,Jing Zhang,Xinguo Zhao,Juan Feng,Yao Teng,Bijuan Chen,Xuemei Sun,Lin Zhu,Xiaojie Sun,Keming Qu +9 more
TL;DR: Results showed that PS acted as both a carrier and a scavenger for the bioaccumulation of BDE-209, and the carrier role of PS was greater than scavenger one.
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Application of film-pore diffusion model for the adsorption of metal ions on coir in a fixed-bed column
Siew Young Quek,Bushra Al-Duri +1 more
TL;DR: In this article, a two resistance film-pore diffusion (FPD) model was applied to predict column breakthrough in fixed-bed adsorption systems, which determined the operating life-span of the bed and the regeneration time.
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Long-term aquaria study suggests species-specific responses of two cold-water corals to macro-and microplastics exposure.
Vincent Mouchi,Leila Chapron,Erwan Peru,Audrey M. Pruski,Anne-Leila Meistertzheim,Gilles Vétion,Pierre E. Galand,Franck Lartaud +7 more
TL;DR: Testing if the feeding behaviour and growth rate of the two most common cold-water coral species, Lophelia pertusa and Madrepora oculata, are affected by micro- or macroplastic exposures finds that they are not affected by plastic exposure.
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