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- Title
Modeling of chlorinated phenols adsorption on polyethylene and polyethylene terephtalate microplastic.
- Authors
LONČARSKI, MAJA; TUBIĆ, ALEKSANDRA; ISAKOVSKI, MARIJANA KRAGULJ; JOVIĆ, BRANISLAV; APOSTOLOVIĆ, TAMARA; NIKIĆ, JASMINA; AGBABA, JASMINA
- Abstract
The role of microplastics (MPs) in the fate and transport of various pollutants in water matrices is of major concern, but is still relatively underinvestigated. 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 studies 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 microplastic (R2 = 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. Obtained results indicate that MPs can serve for the transport of the chlorinated phenols through the ambient waters.
- Subjects
PLASTIC marine debris; CHLOROPHENOLS; PHENOLS; POLYETHYLENE; POLYETHYLENE terephthalate; HYGIENE products; ADSORPTION (Chemistry); MICROPLASTICS
- Publication
Journal of the Serbian Chemical Society, 2020, Issue 0, p1
- ISSN
0352-5139
- Publication type
Article
- DOI
10.2298/JSC190712124L