Cristin-resultat-ID: 1863665
Sist endret: 9. mars 2021, 11:17
NVI-rapporteringsår: 2020
Resultat
Vitenskapelig artikkel
2020

Accelerated hydrolysis method for producing partially degraded polyester microplastic fiber reference materials

Bidragsytere:
  • Antonio Sarno
  • Kjell Olafsen
  • Stephan Kubowicz
  • Fuad Karimov
  • Shannen Sait
  • Lisbet Sørensen
  • mfl.

Tidsskrift

Environmental Science and Technology Letters (ES&T Letters)
ISSN 2328-8930
e-ISSN 2328-8930
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2020
Publisert online: 2020
Trykket: 2021
Volum: 8
Hefte: 3
Sider: 250 - 255
Open Access

Importkilder

Scopus-ID: 2-s2.0-85100106698

Beskrivelse Beskrivelse

Tittel

Accelerated hydrolysis method for producing partially degraded polyester microplastic fiber reference materials

Sammendrag

Microplastic fibers (MPFs) from textiles significantly contribute to the microplastic (MP) load in many environmental matrices and have been shown to negatively impact the organisms therein. Most fate and effect studies to date rely on pristine reference MP materials that have limited relevance compared with the partially degraded MP particles and fibers typically present in the natural environment. The current study aimed to develop and validate a rapid method to generate environmentally relevant polyester (PET) MPF reference material with controllable levels of degradation. Importantly, the method produced the same degradation products (terephthalic acid (TA) and ethylene glycol (EG)) as those generated during natural UV (sunlight) exposure of PET. Alkaline hydrolysis provided linearly increasing degrees of degraded PET MPFs over just a few hours, with full decomposition into molecular fragments occurring after 3 h. The extent of physical degradation was determined by scanning electron microscopy, whereas chemical degradation was quantified by measuring the production of TA and EG degradation products. The proposed accelerated hydrolysis degradation method is relevant for producing partially degraded PET MPF reference materials for use in fate and effect studies.

Bidragsytere

Antonio Sarno

  • Tilknyttet:
    Forfatter
    ved Fiskeri og ny biomarin industri ved SINTEF Ocean

Kjell Olafsen

  • Tilknyttet:
    Forfatter
    ved Materialer og nanoteknologi ved SINTEF AS

Stephan Kubowicz

  • Tilknyttet:
    Forfatter
    ved Materialer og nanoteknologi ved SINTEF AS

Fuad Karimov

  • Tilknyttet:
    Forfatter
    ved Materialer og nanoteknologi ved SINTEF AS
Aktiv cristin-person

Shannen Sait

  • Tilknyttet:
    Forfatter
    ved Institutt for kjemi ved Norges teknisk-naturvitenskapelige universitet
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