The effect of polymer aging on the uptake of fuel aromatics and ethers by microplastics

Müller, Axel H. E.; Becker, Roland; Dorgerloh, Ute; Simon, Franz‐Georg; Braun, Ulrike

doi:10.1016/j.envpol.2018.04.127

Cited by 230 publications

(90 citation statements)

References 42 publications

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“…The introduction of surface oxygen-containing functional groups increased the polarity of the MPs, which may be the reason for the increased sorption capacity of aged MPs PS and PVC for hydrophilic CIP. Müller et al [48] also found that aged PS had reduced sorption of fuel-related water contaminants, including benzene, toluene ethyl benzene, and xylene, due to oxidation of the surface layer and increased polarity.…”

Section: Polaritymentioning

confidence: 99%

Sorption Behavior and Mechanisms of Organic Contaminants to Nano and Microplastics

et al. 2020

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Nano and microplastics (NPs/MPs) have received widespread attention in recent years. Because of their large specific surface area and hydrophobicity, NPs/MPs can adsorb various organic contaminants. This article gives a brief review of the sorption behavior of organic contaminants to NPs/MPs, summarizes the possible sorption mechanisms, and analyzes the influencing factors in the environment on the sorption behavior and mechanisms of NPs/MPs. The main mechanisms of sorption of organic contaminants to NPs/MPs are partitioning, surface sorption (hydrogen bonding, π–π interaction, electrostatic interaction, and van der Waals force), and pore filling. The sorption behavior of organic contaminants to NPs/MPs is not only affected by the properties of the NPs/MPs and the organic contaminants, but also by the solution chemistry, such as the pH, ionic strength, and dissolved organic matter.

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Section: Polaritymentioning

confidence: 99%

Sorption Behavior and Mechanisms of Organic Contaminants to Nano and Microplastics

et al. 2020

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“…permeability, diffusion coefficients, solubility and polarity [41]. Müller et al (2018) have demonstrated that sorption (and herewith also desorption) of chemicals to MP is highly influenced by polymer-specific parameters such as glass transition temperature and crystallization content [42].…”

Section: Plos Onementioning

confidence: 99%

A metrologically traceable protocol for the quantification of trace metals in different types of microplastic

Hildebrandt

Zimmermann³

et al. 2020

PLoS ONE

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The presence of microplastic (MP) particles in aquatic environments raised concern about possible enrichment of organic and inorganic pollutants due to their specific surface and chemical properties. In particular the role of metals within this context is still poorly understood. Therefore, the aim of this work was to develop a fully validated acid digestion protocol for metal analysis in different polymers, which is a prerequisite to study such interactions. The proposed digestion protocol was validated using six different certified reference materials in the microplastic size range consisting of polyethylene, polypropylene, acrylonitrile butadiene styrene and polyvinyl chloride. As ICP-MS/MS enabled time-efficient, sensitive and robust analysis of 56 metals in one measurement, the method was suitable to provide mass fractions for a multitude of other elements beside the certified ones (As, Cd, Cr, Hg, Pb, Sb, Sn and Zn). Three different microwaves, different acid mixtures as well as different temperatures in combination with different hold times were tested for optimization purposes. With the exception of Cr in acrylonitrile butadiene styrene, recovery rates obtained using the optimized protocol for all six certified reference materials fell within a range from 95.9% ± 2.7% to 112% ± 7%. Subsequent optimization further enhanced both precision and recoveries ranging from 103% ± 5% to 107 ± 4% (U; k = 2 (n = 3)) for all certified metals (incl. Cr) in acrylonitrile butadiene styrene. The results clearly show the analytical challenges that come along with metal analysis in chemically resistant plastics. Addressing specific analysis tools for different sorption scenarios and processes as well as the underlying kinetics was beyond this study's scope. However, the future application of the two recommended thoroughly validated total acid digestion protocols as a first step in the direction of harmonization of metal analysis in/on MP will enhance the significance and comparability of the generated data. It will contribute to a better understanding of the role of MP as vector for trace metals in the environment.

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“…After this point, a decrease in sorption ensues. On the other hand, Müller et al (2018) relates the increase in sorption with the glass transition temperature T g : when the temperature is above T g , sorption is facilitated by having a more flexible, amorphous polymer, not in its glassy state.…”

Section: Sorption Of Organic Chemical Compoundsmentioning

confidence: 99%

Remediation of Contaminated Waters with Microplastics

Pérez-Silva

Montesinos-Vázquez

Páez-Hernández

2020

Handbook of Microplastics in the Environment

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Polymeric materials have had an exponential growth since the Second World War, so that in 2018 the annual world production was 359 million tons. This has generated a contamination problem because of its prolonged exposure to various chemical and environmental factors which have caused the formation of particles with a size less than 5 mm with a vast surface area and chemically stable and adjustable surface. For these reasons, these particles called microplastics (MPs) have been used as vectors for chemicals in the environment and, recently, in the removal of several pollutants from water. In this chapter, some representative examples of the use of microplastics for sorption of contaminants from water (pharmaceuticals, metal ions, and other organic compounds) are shown. The chapter is organized into two parts: the first part addresses MPs of commercial origin (virgin) and those reused after being

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The effect of polymer aging on the uptake of fuel aromatics and ethers by microplastics

Cited by 230 publications

References 42 publications

Sorption Behavior and Mechanisms of Organic Contaminants to Nano and Microplastics

Sorption Behavior and Mechanisms of Organic Contaminants to Nano and Microplastics

A metrologically traceable protocol for the quantification of trace metals in different types of microplastic

Remediation of Contaminated Waters with Microplastics

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