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dc.contributor.authorZhang, Weijuan
dc.contributor.authorLin, Hui
dc.contributor.authorFaraj, Yousef
dc.contributor.authorXie, Ruzhen
dc.date.accessioned2024-01-22T02:51:13Z
dc.date.available2024-01-22T02:51:13Z
dc.date.issued2024-01-19
dc.identifierhttps://chesterrep.openrepository.com/bitstream/handle/10034/628437/manuscript%20-JCP%20-%20Mechanism.pdf?sequence=2
dc.identifier.citationZhang, W., Lin, H., Faraj, Y., & Xie, R. (2024). Mechanism of anodic activation of chloride to generate singlet oxygen for fast organic removal using an innovative anode. Journal of Cleaner Production, 437, 140668. https://doi.org/10.1016/j.jclepro.2024.140668
dc.identifier.issn0959-6526
dc.identifier.doi10.1016/j.jclepro.2024.140668
dc.identifier.urihttp://hdl.handle.net/10034/628437
dc.description.abstractElectrochemical persulfate activation (E-PS) has recently emerged as a highly effective advanced oxidation process in water decontamination. However, the presence of chloride ions (Cl−) in waters can accelerate anodic corrosion as well as lead to the formation of toxic chlorinated byproducts (i.e., ClO4 −), limiting its practical application. In this study, we introduce a novel Nd/Bi@SnO2 anode to construct E-PS, which exhibits high stability in chloride-containing water with a long-expected service lifetime of 13.7 years. The Nd/Bi@SnO2 electrode can effectively convert Cl− to reactive chlorine with the assistance of PMS, triggering singlet oxygen (1O2) generation for superior organic removal while avoiding toxic chlorinated byproducts (i.e., ClO4 −) generation as well as greatly reducing the energy consumption. Comprehensive structural and electrochemical characterization results demonstrate Nd/Bi co-doping introduces oxygen vacancy on Nd/Bi@SnO2, enabling the anode with high oxygen evolution potential, excellent conductivity and superior stability. Scavenging experiments and electron paramagnetic resonance illustrate the generation of various reactive species in the system, among which 1O2 predominantly contributes to organic removal and results in harmless intermediates. This innovative approach transforms Cl− into ROSs for eco-friendly, energy-efficient water decontamination.
dc.publisherElsevier
dc.relation.urlhttps://www.sciencedirect.com/science/article/pii/S095965262400115X#:~:text=The%20Nd%2FBi%40SnO2,greatly%20reduce%20the%20energy%20consumption
dc.rightsLicence for AM version of this article starting on 2026-01-19: http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rightsEmbargo: ends 2026-01-19
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceissn: 09596526
dc.titleMechanism of anodic activation of chloride to generate singlet oxygen for fast organic removal using an innovative anode
dc.typeArticle
dc.contributor.departmentSichuan University; Dongguan University of Technology; University of Chester
dc.identifier.journalJournal of Cleaner Production
dc.date.updated2024-01-22T02:51:12Z
dc.date.accepted2024-01-07
rioxxterms.funderFunder: National Natural Science Foundation of China; Grant(s): 52170089
rioxxterms.funderFunder: Sichuan University; Grant(s): C2024128864
rioxxterms.funderFunder: Science and Technology Department of SiChuan Province; Grant(s): 24NSFSC1592
rioxxterms.funderFunder: Chengdu Science and Technology Bureau; Grant(s): 2019-GH02-00053-HZ
rioxxterms.funderFunder: Analytical & Testing Center of Sichuan University


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