The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Advanced Oxidation Kinetics and Mechanism of Preservative Propylparaben Degradation in Aqueous Suspension of TiO2 and Risk Assessment of Its Degradation Products
Abstract
The absolute kinetic rate constants of propylparaben (PPB) in water with different free radicals were investigated, and it was found that both hydroxyl radicals (HO(•)) and hydrated electrons could rapidly react with PPB. The advanced oxidation kinetics and mechanisms of PPB were investigated using photocatalytic process as a model technology, and the degradation was found to be a pseudo-first-order model. Oxidative species, particularly HO(•), were the most important reactive oxygen species mediating photocatalytic degradation of PPB, and PPB degradation was found to be significantly affected by pH because it was controlled by the radical reaction mechanism and was postulated to occur primarily via HO(•)-addition or H-abstraction reactions on the basis of pulse radiolysis measurements and observed reaction products. To investigate potential risk of PPB to humans and aqueous organisms, the estrogenic assays and bioassays were performed using 100 μM PPB solution degraded by photocatalysis at specific intervals. The estrogenic activity decreased as PPB was degraded, while the acute toxicity at three trophic levels first increased slowly and then decreased rapidly as the total organic carbon decreased during photocatalytic degradation.
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Cites
Buxton, G. V., Greenstock, C. L., Helman, W. P., & Ross, A. B. (1988) · Journal of Physical and Chemical Reference Data · doi:10.1063/1.555805 · Cited by 12,332
Cited by
Fang, G., Gao, J., Liu, C., Dionysiou, D. D., Wang, Y., & Zhou, D. (2014) · Environmental Science & Technology · doi:10.1021/es4048126 · Cited by 802
Wang, F., Chen, P., Feng, Y., Xie, Z., Liu, Y., Su, Y., Zhang, Q., Wang, Y., Yao, K., Lv, W., et al. (2017) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2017.02.024 · Cited by 531
Li, G., Nie, X., Chen, J., Jiang, Q., An, T., Wong, P. K., Zhang, H., Zhao, H., & Yamashita, H. (2015) · Water Research · doi:10.1016/j.watres.2015.05.053 · Cited by 370
Self-citationLong, Y., Dai, J., Zhao, S., Su, Y., Wang, Z., & Zhang, Z. (2021) · Environmental Science & Technology · doi:10.1021/acs.est.0c07794 · Cited by 304
Petala, A., Frontistis, Z., Antonopoulou, M., Konstantinou, I., Kondarides, D. I., & Mantzavinos, D. (2015) · Water Research · doi:10.1016/j.watres.2015.05.056 · Cited by 113
Metadata
- Authors
- Fang, H., Gao, Y., Li, G., An, J., Wong, P.-K., Fu, H., Yao, S., Nie, X., & An, T.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-03-06
- Volume
- 47
- Issue
- 6
- Pages
- 2704-2712
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2334628748
- Cited by
- 178
- References
- 1
- FWCI
- 16.17
- 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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