The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Role of Ferrate(IV) and Ferrate(V) in Activating Ferrate(VI) by Calcium Sulfite for Enhanced Oxidation of Organic Contaminants
Abstract
Although the Fe(VI)–sulfite process has shown great potential for the rapid removal of organic contaminants, the major active oxidants (Fe(IV)/Fe(V) versus SO 4 •– / • OH) involved in this process are still under debate. By employing sparingly soluble CaSO 3 as a slow-releasing source of SO 3 2–, this study evaluated the oxidation performance of the Fe(VI)–CaSO 3 process and identified the active oxidants involved in this process. The process exhibited efficient oxidation of a variety of compounds, including antibiotics, pharmaceuticals, and pesticides, at rates that were 6.1–173.7-fold faster than those measured for Fe(VI) alone, depending on pH, CaSO 3 dosage, and the properties of organic contaminants. Many lines of evidence verified that neither SO 4 •– nor • OH was the active species in the Fe(VI)–CaSO 3 process. The accelerating effect of CaSO 3 was ascribed to the direct generation of Fe(IV)/Fe(V) species from the reaction of Fe(VI) with soluble SO 3 2– via one-electron steps as well as the indirect generation of Fe(IV)/Fe(V) species from the self-decay of Fe(VI) and Fe(VI) reaction with H 2 O 2, which could be catalyzed by uncomplexed Fe(III). Besides, the Fe(VI)–CaSO 3 process exhibited satisfactory removal of organic contaminants in real water, and inorganic anions showed negligible effects on organic contaminant decomposition in this process. Thus, the Fe(VI)–CaSO 3 process with Fe(IV)/Fe(V) as reactive oxidants may be a promising method for abating various micropollutants in water treatment.
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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
Yang, Y., Lu, X., Jiang, J., Ma, J., Liu, G., Cao, Y., Liu, W., Li, J., Pang, S., Kong, X., et al. (2017) · Water Research · doi:10.1016/j.watres.2017.03.054 · Cited by 637
Forrester, A. R., & Hepburn, S. P. (1971) · Journal of the Chemical Society C: Organic · doi:10.1039/j39710000701 · Cited by 77
Cited by
Zong, Y., Shao, Y., Zeng, Y., Shao, B., Xu, L., Zhao, Z., Liu, W., & Wu, D. (2021) · Environmental Science & Technology · doi:10.1021/acs.est.1c00375 · Cited by 499
Self-citationSulfite-based advanced oxidation and reduction processes for water treatment
Wu, S., Shen, L., Lin, Y., Yin, K., & Yang, C. (2021) · Chemical Engineering Journal · doi:10.1016/j.cej.2021.128872 · Cited by 382
Li, Y., Yang, T., Qiu, S., Lin, W., Yan, J., Fan, S., & Zhou, Q. (2020) · Chemical Engineering Journal · doi:10.1016/j.cej.2020.124382 · Cited by 365
Huang, B., Wu, Z., Wang, X., Song, X., Zhou, H., Zhang, H., Zhou, P., Liu, W., Xiong, Z., & Lai, B. (2023) · Environmental Science & Technology · doi:10.1021/acs.est.3c05509 · Cited by 281
Metadata
- Authors
- Shao, B., Dong, H., Sun, B., & Guan, X.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-12-20
- Volume
- 53
- Issue
- 2
- Pages
- 894-902
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2906035730
- Cited by
- 393
- References
- 3
- FWCI
- 9.34
- Type
- journal article
- Language
- en
- Open access
- closed
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