The DOI matches its Crossref record; 70 of the 70 references it cites were found in a registry or an index.
Enhancement of H2O2 Decomposition by the Co-catalytic Effect of WS2 on the Fenton Reaction for the Synchronous Reduction of Cr(VI) and Remediation of Phenol
Abstract
The greatest problem in the Fe(II)/H 2 O 2 Fenton reaction is the low production of ·OH owing to the inefficient Fe(III)/Fe(II) cycle and the low decomposition efficiency of H 2 O 2 (<30%). Herein, we report a new discovery regarding the significant co-catalytic effect of WS 2 on the decomposition of H 2 O 2 in a photoassisted Fe(II)/H 2 O 2 Fenton system. With the help of WS 2 co-catalytic effect, the H 2 O 2 decomposition efficiency can be increased from 22.9% to 60.1%, such that minimal concentrations of H 2 O 2 (0.4 mmol/L) and Fe 2+ (0.14 mmol/L) are necessary for the standard Fenton reaction. Interestingly, the co-catalytic Fenton strategy can be applied to the simultaneous oxidation of phenol (10 mg/L) and reduction of Cr(VI) (40 mg/L), and the corresponding degradation and reduction rates can reach up to 80.9% and 90.9%, respectively, which are much higher than the conventional Fenton reaction (52.0% and 31.0%). We found that the expose reductive W 4+ active sites on the surface of WS 2 can greatly accelerate the rate-limiting step of Fe 3+ /Fe 2+ conversion, which plays the key role in the decomposition of H 2 O 2 and the reduction of Cr(VI). Our discovery represents a breakthrough in the field of inorganic catalyzing AOPs and greatly advances the practical utility of this method for environmental applications.
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Cites
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Cited by
Yi, Q., Ji, J., Shen, B., Dong, C., Liu, J., Zhang, J., & Xing, M. (2019) · Environmental Science & Technology · doi:10.1021/acs.est.9b01676 · Cited by 834
Self-citationZong, 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
Deng, F., Olvera-Vargas, H., Zhou, M., Qiu, S., Sirés, I., & Brillas, E. (2023) · Chemical Reviews · doi:10.1021/acs.chemrev.2c00684 · Cited by 409
Brillas, E., & Garcia-Segura, S. (2020) · Separation and Purification Technology · doi:10.1016/j.seppur.2019.116337 · Cited by 394
Pivotal roles of MoS2 in boosting catalytic degradation of aqueous organic pollutants by Fe(II)/PMS
Sheng, B., Yang, F., Wang, Y., Wang, Z., Li, Q., Guo, Y., Lou, X., & Liu, J. (2019) · Chemical Engineering Journal · doi:10.1016/j.cej.2019.121989 · Cited by 308
He, S., Yan, C., Chen, X.-Z., Wang, Z., Ouyang, T., Guo, M.-L., & Liu, Z.-Q. (2020) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2020.119138 · Cited by 281
Wang, C., Ying, C., Tang, Y., Yan, Y., & Feng, X. (2020) · Chemical Engineering Journal Advances · doi:10.1016/j.ceja.2020.100044 · Cited by 18
Metadata
- Authors
- Dong, C., Ji, J., Shen, B., Xing, M., & Zhang, J.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-09-04
- Volume
- 52
- Issue
- 19
- Pages
- 11297-11308
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2891022562
- Cited by
- 406
- References
- 70
- FWCI
- 15.91
- Type
- journal article
- Language
- en
- Open access
- closed
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