Adsorption of antibiotics on microplastics

Li, Jia; Zhang, Kaina; Zhang, Hua

doi:10.1016/j.envpol.2018.02.050

Cited by 983 publications

(393 citation statements)

References 46 publications

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“…This indicates that chemical interactions between the CPs and surface of the MPs could be successfully used to describe the adsorption process. Similar results were obtained by Wang and Wang 14 and Li et al, 1 who investigated the adsorption of hydrophobic organic compounds on PE.…”

Section: Kinetics Experimentssupporting

confidence: 88%

“…The Freundlich and Langmuir adsorption models were used to fit the adsorption isotherms (see Li et al for the applied formulae). 1…”

Section: Adsorption Experimentsmentioning

confidence: 99%

“…Plastic debris in water environments have become persistent pollutants of increasing concern due to their extensive discharge over the years. 1 The increasing amounts of plastic debris in water are a consequence of the release of primary and secondary microplastics into the environment, such as via industrial accidental spillages or microbeads used in cosmetics. 2,3 Furthermore, under the MODELING OF CHLORINATED PHENOLS ADSORPTION 699 phenol and 4-chlorophenol, are listed as pollutants of environmental concern, due to their resistance to degradation and high toxicity.…”

Section: Introductionmentioning

confidence: 99%

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Modelling of the adsorption of chlorinated phenols on polyethylene and polyethylene terephthalate microplastic

et al. 2020

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The role of microplastics (MPs) on the fate and transport of various pollutants in water matrices is of major concern, but it is still relatively under investigated. In order to consider the conditions in real aquatic environments, the changes to polyethylene (PE) structure during the fabrication of microplastic particles for specific uses should not be neglected. Thus, this work considers isolated PE from two types of personal care products, which are possible sources of microplastic contamination in aquatic environments. The adsorption affinity of these PE microplastics towards ionisable compounds was compared with those of standards of PE and polyethylene terephthalate (PET), using chlorinated phenols (4-chlorophenol, 2,4-dichlorophenol, 2,4,6-trichlorophenol and pentachlorophenol) as adsorbates. The pseudo-second order kinetic model described well the sorption process for all chlorinated phenols on all four types of MPs (R 2 range: 0.900-0.998). The kinetic study showed that sorption rates are mainly controlled by hydrophobic interactions and molecule size. Adsorption isotherms were best described by the Freundlich model for all MPs. The obtained results indicate that MPs could serve for the transport of chlorinated phenols through ambient waters.

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Section: Kinetics Experimentssupporting

confidence: 88%

“…The Freundlich and Langmuir adsorption models were used to fit the adsorption isotherms (see Li et al for the applied formulae). 1…”

Section: Adsorption Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modelling of the adsorption of chlorinated phenols on polyethylene and polyethylene terephthalate microplastic

et al. 2020

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“…Microplastics as stated earlier have low polarity on its surface due to electrostatic interactions and pH of point of zero charge (pH pzc ) being lower than most environmental pHs [94,125,190,199]. The low polarity (becoming more negative) exhibited by microplastics could also be responsible for aqueous metal ions adsorption on their surfaces.…”

Section: Hydrophobic Adsorption Of Chemicalsmentioning

confidence: 90%

Microplastic–toxic chemical interaction: a review study on quantified levels, mechanism and implication

et al. 2019

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Current problem facing researchers globally is microplastics as well as toxic chemical pollution of the ecosystem. Microplastics carry toxic chemicals in the ecosystem serving as a vector for transport. In this study, a review of the literature has been conducted with the following objectives: (1) to summarize the concentrations of toxic chemicals such heavy metals and hydrophobic organic contaminants sorped on microplastics; (2) to evaluate their spatial distribution regarding adsorbed contaminant; (3) to discuss plausible mechanism by which microplastics adsorp or desorp toxic chemicals in the environment; (4) to discuss implications of their occurrence in air, water and soil media; and (5) to discuss the impact of ingested microplastics to human health. Microplastics are ubiquitous environmental contaminant. Concentrations of sorped toxic chemical varied by location which represents a local problem; industrialized areas (especially areas experiencing crude oil-related activities or have history of crude oil pollution) have higher concentrations than less industrialized areas. Ingestion of microplastics has been demonstrated in a range of marine and soil organisms as well as edible plants, thus possibly contaminating the base of the food web. Potential health effect to human is by particle localization, chemical toxicity and microbial toxins. We conclude by highlighting the gap in knowledge and suggesting key future areas of research for scientists and policymakers.

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“…After being continuously agitated for 48 h (equilibrium time), samples were collected to quantify the equilibrium concentrations of CPs in the aqueous phase. The Freundlich and Langmuir adsorption models (see Li et al (2018) for the formulae applied) were used to fit the adsorption isotherm data [20].…”

Section: Sorption Experimentsmentioning

confidence: 99%

Significance of Chlorinated Phenols Adsorption on Plastics and Bioplastics during Water Treatment

Tubić

Lončarski

Maletić

et al. 2019

Water

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Microplastics and chlorinated phenols (CPs) are pollutants found ubiquitously in freshwater systems. Meanwhile, bioplastics are attracting much attention as alternatives to conventional plastics, but there is little data about their effect on the behaviour of pollutants. This work therefore investigates the sorption of four CPs (4-chlorophenol—4-CP, 2,4-dichlorophenol—2,4-DCP, 2,4,6-trichlorophenol—2,4,6-TCP and pentachlorophenol—PCP) on three different plastics (polyethylene (PЕg), polypropylene (PP) and polylactic acid (PLA)) using kinetics and isotherm studies. All experiments were carried out in a synthetic water matrix and in spiked Danube river water. In all cases, adsorption kinetics fitted well with the pseudo-second order rate model. Adsorption proceeded through two linear phases, corresponding to transport from the bulk solution to the external surfaces and then into the interior pores of the sorbents. Maximum adsorption capacities calculated with the Langmuir isotherm indicated that whereas adsorption of 4-CP was not significantly affected by the type of plastic present, the adsorption of 2,4-DCP, 2,4,6-TCP and PCP varied greatly, with polypropylene showing the greatest affinity for CPs adsorption. The differences observed between the adsorption behaviour of CPs in the synthetic and natural water matrices suggest further investigation is required into how the different fractions of natural organic matter impact interactions between CPs and plastics.

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Adsorption of antibiotics on microplastics

Cited by 983 publications

References 46 publications

Modelling of the adsorption of chlorinated phenols on polyethylene and polyethylene terephthalate microplastic

Modelling of the adsorption of chlorinated phenols on polyethylene and polyethylene terephthalate microplastic

Microplastic–toxic chemical interaction: a review study on quantified levels, mechanism and implication

Significance of Chlorinated Phenols Adsorption on Plastics and Bioplastics during Water Treatment

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