| Autor: |
Xiao Xi Guo, Shishuai Shi, Ke Wang, Ruixue Zhang, Bo Hu, Huanhuan Wang, Yun Tian, Mai Guo, Bolan Li, Yi-Fan Han |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Chemical Engineering Journal. 435:132910 |
| ISSN: |
1385-8947 |
| Popis: |
Cu-Co bimetallic catalysts show excellent performance for metronidazole (MNZ) degradation in a Fenton-like reaction, a near complete conversion was achieved. Cu doped Co3O4 with {112} exposed facet has proved to promote the oxidation of Co2+ to Co3+ in Cu-CoOx. The surface Cu+ on {112}-enclosed Co3O4 was identified as the main active species for the reaction and its concentration counts a lot in performance. The Cu+ with raised d-band center under Co-Cu synergistic interaction has boosted the dissociation of H2O2 into •OH with stronger electron donation to H2O2 and elongated O-O bond. Meanwhile, the accelerated redox process especially for Cu on the {112} facet of Co3O4 with a faster electron transfer rate also contributed to the excellent performance. The optimization of operational parameters of Co1Cu2 in MNZ removal with investigation of degradation pathway were also thoroughly performed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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