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Metal Sulfides as Excellent Co-catalysts for H2O2 Decomposition in Advanced Oxidation Processes
Open accessAbstract
Summary Advanced oxidation processes (AOPs) are widely proposed for treating persistent pollutants by the ⋅ OH radicals generated from H 2 O 2 decomposition. However, their broad applications in practical settings have been hampered by the low efficiency of H 2 O 2 decomposition. Here, we report that metal sulfides (MoS 2 , WS 2 , Cr 2 S 3 , CoS 2 , PbS, or ZnS) can serve as excellent co-catalysts to greatly increase the efficiency of H 2 O 2 decomposition and significantly decrease the required dosage of H 2 O 2 and Fe 2+ in AOPs. Unsaturated S atoms on the surface of metal sulfides can capture protons to form H 2 S and expose metallic active sites with reductive properties to accelerate the rate-limiting step of Fe 3+ /Fe 2+ conversion. The efficiency of AOPs involving co-catalysts can be further enhanced by visible-light illumination thanks to the sensitization of organic pollutants. This discovery is expected to drive great advances in the use of AOPs for large-scale practical applications such as environmental remediation.
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Voiry, D., Fullon, R., Yang, J., de Carvalho Castro e Silva, C., Kappera, R., Bozkurt, I., Kaplan, D., Lagos, M. J., Batson, P. E., Gupta, G., et al. (2016) · Nature Materials · doi:10.1038/nmat4660 · Cited by 824
Accelerated crystallization of zeolites via hydroxyl free radicals
Feng, G., Cheng, P., Yan, W., Boronat, M., Li, X., Su, J.-H., Wang, J., Li, Y., Corma, A., Xu, R., et al. (2016) · Science · doi:10.1126/science.aaf1559 · Cited by 443
Cited by
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
Zhou, Y., Fan, S., Feng, L., Huang, X., & Chen, X. (2021) · Advanced Materials · doi:10.1002/adma.202104223 · Cited by 463
Self-citationMiao, F., Liu, Y., Gao, M., Yu, X., Xiao, P., Wang, M., Wang, S., & Wang, X. (2020) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2020.123023 · Cited by 452
Brillas, E., & Garcia-Segura, S. (2020) · Separation and Purification Technology · doi:10.1016/j.seppur.2019.116337 · Cited by 394
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Hui, B., Zhang, K., Xia, Y., & Zhou, C. (2020) · Electrochimica Acta · doi:10.1016/j.electacta.2019.135274 · Cited by 66
Metadata
- Authors
- Xing, M., Xu, W., Dong, C., Bai, Y., Zeng, J., Zhou, Y., Zhang, J., & Yin, Y.
- Venue
- Chem
- Publisher
- Elsevier BV
- Published
- 2018-06
- Volume
- 4
- Issue
- 6
- Pages
- 1359-1372
- ISSN
- 2451-9294 (ISSN-L)
- OpenAlex
- W2796726085
- Cited by
- 1,036
- References
- 2
- FWCI
- 38.19
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Xing, M., Xu, W., Dong, C., Bai, Y., Zeng, J., Zhou, Y., Zhang, J., & Yin, Y. (2018). Metal Sulfides as Excellent Co-catalysts for H2O2 Decomposition in Advanced Oxidation Processes. Chem. https://doi.org/10.1016/j.chempr.2018.03.002
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