Sorption of polyhalogenated carbazoles (PHCs) to microplastics.
Microplastics
Polyhalogenated carbazoles
Salinity
Sorption
Temperature
Journal
Marine pollution bulletin
ISSN: 1879-3363
Titre abrégé: Mar Pollut Bull
Pays: England
ID NLM: 0260231
Informations de publication
Date de publication:
Sep 2019
Sep 2019
Historique:
received:
15
06
2019
revised:
13
07
2019
accepted:
13
07
2019
pubmed:
21
8
2019
medline:
4
12
2019
entrez:
21
8
2019
Statut:
ppublish
Résumé
The sorption of 5 Polyhalogenated carbazoles (PHCs) [3,6-dibromocarbazole (3,6-BCZ), 3,6-dichlorocarbazole (3,6-CCZ), 3,6-diiodocarbazole (3,6-ICZ), 2,7-dibromocarbazole (2,7-BCZ) and 3-bromocarbazole (3-BCZ)] on to three microplastics [polyethylene (PE), polypropylene (PP), and polyvinyl chloride (PVC)] in a simulated seawater system are studied. Sorption isotherms demonstrated that PVC had the maximum sorption capacity, which can be attributed to polar-polar interaction. The sorption kinetics model showed that the sorption process was controlled by both intraparticle and film diffusion. The sorption of PHCs to microplastics was significantly influenced by temperature, the sorption capacity first increased gradually and then decreased with the increasing temperature. Increasing the salinity decreased the sorption of PHCs onto PP, PE, PVC microplastics. Our results indicated that all three kinds of microplastics can serve as carriers for PHCs in the aquatic environment, which put marine ecosystems at higher risks.
Identifiants
pubmed: 31426214
pii: S0025-326X(19)30565-X
doi: 10.1016/j.marpolbul.2019.07.034
pii:
doi:
Substances chimiques
3-bromocarbazole
0
Carbazoles
0
Plastics
0
Water Pollutants, Chemical
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
718-728Informations de copyright
Copyright © 2019 Elsevier Ltd. All rights reserved.