The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Magnetic Nanoscaled Fe3O4/CeO2 Composite as an Efficient Fenton-Like Heterogeneous Catalyst for Degradation of 4-Chlorophenol
Abstract
Magnetic nanoscaled Fe(3)O(4)/CeO(2) composite was prepared by the impregnation method and characterized as a heterogeneous Fenton-like catalyst for 4-chlorophenol (4-CP) degradation. The catalytic activity was evaluated in view of the effects of various processes, pH value, catalyst addition, hydrogen peroxide (H(2)O(2)) concentration, and temperature, and the pseudo-first-order kinetic constant of 0.11 min(-1) was obtained for 4-CP degradation at 30 °C and pH 3.0 with 30 mM H(2)O(2), 2.0 g L(-1) Fe(3)O(4)/CeO(2), and 0.78 mM 4-CP. The high utilization efficiency of H(2)O(2), calculated as 79.2%, showed a promising application of the catalyst in the oxidative degradation of organic pollutants. The reusability of Fe(3)O(4)/CeO(2) composite was also investigated after six successive runs. On the basis of the results of metal leaching, the effects of radical scavengers, intermediates determination, and X-ray photoelectron spectroscopic (XPS) analysis, the dissolution of Fe(3)O(4) facilitated by CeO(2) played a significant role, and 4-CP was decomposed mainly by the attack of hydroxyl radicals (•OH), including surface-bound •OH(ads) generated by the reaction of Fe(2+) and Ce(3+) species with H(2)O(2) on the catalyst surface, and •OH(free) in the bulk solution mainly attributed to the leaching of Fe.
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Cites
Intrinsic peroxidase-like activity of ferromagnetic nanoparticles
Gao, L., Zhuang, J., Nie, L., Zhang, J., Zhang, Y., Gu, N., Wang, T., Feng, J., Yang, D., Perrett, S., et al. (2007) · Nature Nanotechnology · doi:10.1038/nnano.2007.260 · Cited by 7,483
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Reactive Species in Advanced Oxidation Processes: Formation, Identification and Reaction Mechanism
Wang, J., & Wang, S. (2020) · Chemical Engineering Journal · doi:10.1016/j.cej.2020.126158 · Cited by 1,585
Self-citationWang, L., Lan, X., Peng, W., & Wang, Z. (2021) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2020.124436 · Cited by 689
Nanocatalysts and other nanomaterials for water remediation from organic pollutants
Lu, F., & Astruc, D. (2020) · Coordination Chemistry Reviews · doi:10.1016/j.ccr.2020.213180 · Cited by 682
An, S., Zhang, G., Wang, T., Zhang, W., Li, K., Song, C., Miller, J. T., Miao, S., Wang, J., & Guo, X. (2018) · ACS Nano · doi:10.1021/acsnano.8b04693 · Cited by 601
Self-citationInterfacial mechanisms of heterogeneous Fenton reactions catalyzed by iron-based materials: A review
He, J., Yang, X., Men, B., & Wang, D. (2016) · Journal of Environmental Sciences · doi:10.1016/j.jes.2015.12.003 · Cited by 587
Metadata
- Authors
- Xu, L., & Wang, J.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-09-05
- Volume
- 46
- Issue
- 18
- Pages
- 10145-10153
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2331310872
- Cited by
- 1,130
- References
- 1
- FWCI
- 34.89
- Type
- journal article
- Language
- en
- Open access
- closed
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