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

Journal of the Serbian Chemical Society

Agbaba Jasmina¹  Apostolović Tamara¹  Kragulj-Isakovski Marijana¹  Nikić Jasmina¹  Tubić Aleksandra¹  Lončarski Maja¹  Jović Branislav¹ 

[1] University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Novi Sad, Republic of Serbia;

关键词: microplastics;    ionisable organic pollutants;    pe;    pet;   

DOI  :  10.2298/JSC190712124L

来源: DOAJ

【 摘 要 】

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 (R2 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. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. III43005]

【 授权许可】

Unknown