| Autor: |
Xinfeng Zhu, Jiaxuan Li, Yunlong Wang, Tuo Wang, Mengyao Shi, Linlin Chang, Chaohai Wang, Kai Wang, Libin Jiang, Dandan Pang, Zhongxian Song, Shiqiang Yin, Jinhui Zhang |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Chemical Physics Impact, Vol 8, Iss , Pp 100505- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2667-0224 |
| DOI: |
10.1016/j.chphi.2024.100505 |
| Popis: |
The widespread antibiotic use is accompanied by antibiotic resistance. A large number of antibiotic pollutants enter the water, seriously endangering the ecological environment and human health. In this study, cobalt-based materials are used to activate persulfate to treat antibiotics in wastewater based on advanced oxidation. Co3O4 is obtained at different temperatures by the one-step roasting method, eliminating the complicated preparation of traditional materials which require a large amount of reagents, generating a large amount of wastewater, and complex large-scale preparation. XRD and Raman results indicate the materials’ good crystallinity and purity. XPS and SEM indicated that the appropriate calcination temperature promoted the formation of Co2+, which was conducive to the activation of PMS for the oxidation of TCH. The catalytic activity of the materials is evaluated using tetracycline (TCH). Results suggest that 90.01 % of TCH is removed after 30 min using 0.8 g/L Co3O4–350 °C, 0.4 g/L persulfate (PMS), 25 °C, and initial pH. Moreover, pH, cyclic, and ion interference experiments indicate that the Co3O4–350 °C/PMS system exhibits a wide potential application range. Free radical scavenging experiments show that ·O2− is the main active oxygen species. Co3O4–350 °C as a PMS activator is a catalytic material with large-scale practical applications. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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