The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.
Activation of Peroxydisulfate on Carbon Nanotubes: Electron-Transfer Mechanism
Abstract
This study proposed an electrochemical technique for investigating the mechanism of nonradical oxidation of organics with peroxydisulfate (PDS) activated by carbon nanotubes (CNT). The electrochemical property of twelve phenolic compounds (PCs) was evaluated by their half-wave potentials, which were then correlated to their kinetic rate constants in the PDS/CNT system. Integrated with quantitative structure-activity relationships (QSARs), electron paramagnetic resonance (EPR), and radical scavenging tests, the nature of nonradical pathways of phenolic compound oxidation was unveiled to be an electron-transfer regime other than a singlet oxygenation process. The QSARs were established according to their standard electrode potentials, activation energy, and pre-exponential factor. A facile electrochemical analysis method (chronopotentiometry combined with chronoamperometry) was also employed to probe the mechanism, suggesting that PDS was catalyzed initially by CNT to form a CNT surface-confined and -activated PDS (CNT-PDS*) complex with a high redox potential. Then, the CNT-PDS* complex selectively abstracted electrons from the co-adsorbed PCs to initiate the oxidation. Finally, a comparison of PDS/CNT and graphite anodic oxidation under constant potentials was comprehensively analyzed to unveil the relative activity of the nonradical CNT-PDS* complex toward the oxidation of different PCs, which was found to be dependent on the oxidative potentials of the CNT-PDS* complex and the adsorbed organics.
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Citations
Cites
Metal-Free Carbocatalysis in Advanced Oxidation Reactions
Duan, X., Sun, H., & Wang, S. (2018) · Accounts of Chemical Research · doi:10.1021/acs.accounts.7b00535 · Cited by 1,329
Self-citationZhu, S., Huang, X., Ma, F., Wang, L., Duan, X., & Wang, S. (2018) · Environmental Science & Technology · doi:10.1021/acs.est.8b01817 · Cited by 1,179
Self-citationYun, E.-T., Lee, J. H., Kim, J., Park, H.-D., & Lee, J. (2018) · Environmental Science & Technology · doi:10.1021/acs.est.8b00959 · Cited by 1,175
Insights into Heterogeneous Catalysis of Persulfate Activation on Dimensional-Structured Nanocarbons
Duan, X., Sun, H., Kang, J., Wang, Y., Indrawirawan, S., & Wang, S. (2015) · ACS Catalysis · doi:10.1021/acscatal.5b00774 · Cited by 799
Self-citationReduced Graphene Oxide for Catalytic Oxidation of Aqueous Organic Pollutants
Sun, H., Liu, S., Zhou, G., Ang, H. M., Tadé, M. O., & Wang, S. (2012) · ACS Applied Materials & Interfaces · doi:10.1021/am301372d · Cited by 722
Self-citationActivation of Persulfates by Graphitized Nanodiamonds for Removal of Organic Compounds
Lee, H., Kim, H.-I., Weon, S., Choi, W., Hwang, Y. S., Seo, J., Lee, C., & Kim, J.-H. (2016) · Environmental Science & Technology · doi:10.1021/acs.est.6b02079 · Cited by 688
Sun, H., Kwan, C., Suvorova, A., Ang, H. M., Tadé, M. O., & Wang, S. (2014) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2014.02.012 · Cited by 509
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Cited by
Origins of Electron-Transfer Regime in Persulfate-Based Nonradical Oxidation Processes
Ren, W., Cheng, C., Shao, P., Luo, X., Zhang, H., Wang, S., & Duan, X. (2022) · Environmental Science & Technology · doi:10.1021/acs.est.1c05374 · Cited by 1,306
Self-citationChen, F., Liu, L.-L., Chen, J.-J., Li, W.-W., Chen, Y.-P., Zhang, Y.-J., Wu, J.-H., Mei, S.-C., Yang, Q., & Yu, H.-Q. (2021) · Water Research · doi:10.1016/j.watres.2020.116799 · Cited by 482
Peng, L., Shang, Y., Gao, B., & Xu, X. (2021) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2020.119484 · Cited by 478
Zhou, X., Zhu, Y., Niu, Q., Zeng, G., Lai, C., Liu, S., Huang, D., Qin, L., Liu, X., Li, B., et al. (2021) · Chemical Engineering Journal · doi:10.1016/j.cej.2021.129027 · Cited by 319
Yang, J., Zeng, D., Zhang, Q., Cui, R., Hassan, M., Dong, L., Li, J., & He, Y. (2020) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2020.119363 · Cited by 282
Metadata
- Authors
- Ren, W., Xiong, L., Yuan, X., Yu, Z., Zhang, H., Duan, X., & Wang, S.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2019-11-13
- Volume
- 53
- Issue
- 24
- Pages
- 14595-14603
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2985341814
- Cited by
- 811
- References
- 7
- FWCI
- 24.92
- Type
- journal article
- Language
- en
- Open access
- closed
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