The DOI matches its Crossref record; 6 of the 6 references it cites were found in a registry or an index.
Photo-aging of polyvinyl chloride microplastic in the presence of natural organic acids
Abstract
In this study, a new photo-aging pathway in the aquatic environments and the underlying transformation mechanism were described for polyvinyl chloride microplastic (PVC-MP). Our results indicated that the photo-aging of PVC-MP was strongly dependent on particle size and the aging reaction could be facilitated in the presence of low-molecular-weight organic acid (LMWOA) and LMWOA-Fe(III) complex under simulated and natural sunlight irradiation and ambient conditions. The hydroxyl radical (OH•) generated from the photolysis of LMWOA or its ferric complexes played a dominant role in enhancing PVC-MP degradation. In situ Fourier transform infrared and Raman spectroscopic techniques and theoretical calculations further confirmed that C-Cl bond cleavage and formation of polyene and carbonyl underwent on the PVC-MP surface, especially in the presence of LMWOA and LMWOA-Fe(III). Moreover, PVC-MP surface oxidation also led to the increase of the specific surface area and affinity towards water as indicated by the results of scanning electron microscopy, Brunauer-Emmett-Teller tests and contact angles for water, which would further enhance the adsorption of polar contaminants on PVC-MP and thus increase the health risk of PVC-MP on aquatic organisms.
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Cited by
Understanding plastic degradation and microplastic formation in the environment: A review
Zhang, K., Hamidian, A. H., Tubić, A., Zhang, Y., Fang, J. K. H., Wu, C., & Lam, P. K. S. (2021) · Environmental Pollution · doi:10.1016/j.envpol.2021.116554 · Cited by 1,539
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Self-citationMicroplastics generated from a biodegradable plastic in freshwater and seawater
Wei, X.-F., Bohlén, M., Lindblad, C., Hedenqvist, M., & Hakonen, A. (2021) · Water Research · doi:10.1016/j.watres.2021.117123 · Cited by 387
Polyvinyl chloride degradation by a bacterium isolated from the gut of insect larvae
Zhang, Z., Peng, H., Yang, D., Zhang, G., Zhang, J., & Ju, F. (2022) · Nature Communications · doi:10.1038/s41467-022-32903-y · Cited by 280
Interactive impacts of photoaged micro(nano)plastics and co-occurring chemicals in the environment
Junaid, M., Hamid, N., Liu, S., Abbas, Z., Imran, M., Haider, M. R., Wang, B., Chen, G., Khan, H. K., Yue, Q., et al. (2024) · Science of The Total Environment · doi:10.1016/j.scitotenv.2024.172213 · Cited by 37
Metadata
- Authors
- Wang, C., Xian, Z., Jin, X., Liang, S., Chen, Z., Pan, B., Wu, B., Ok, Y. S., & Gu, C.
- Venue
- Water Research
- Publisher
- Elsevier BV
- Published
- 2020-09
- Volume
- 183
- Pages
- 116082
- ISSN
- 0043-1354 (ISSN-L)
- OpenAlex
- W3036249844
- Cited by
- 324
- References
- 6
- FWCI
- 8.09
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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