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- Title
Preparation of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> modified rare earth doped PbO<sub>2</sub> electrodes for efficient removal of sulfamethoxazole.
- Authors
Zhu, Dancheng; Wu, Yifan; Zheng, Kai; Xu, Hao; Chen, Chao; Qiao, Jun; Shen, Chao
- Abstract
In this study, we deposited Ti3C2Tx-modified, rare-earth-doped PbO2 on the surface of a carbon fabric via electrodeposition. The surface morphology and electronic structure of the electrode were characterized with SEM, XRD and XPS. The layered Ti3C2Tx did not change the structure of β-PbO2, and at the same time, it improved the crystallinity of the material and reduced the grains of PbO2. Electrochemical experiments showed that the addition of Ti3C2Tx increased the electrochemical activity of the electrode and produced more H2O2, which contributed to the degradation of pollutants. The efficiency of sulfamethoxazole (SMX) degradation reached 95% after 120 min at pH 3 with a current density of 50 mA/cm2. Moreover, the electrode has good cycling performance, and the degradation efficiency was still 80% after 120 min after 10 cycles of recycling. Based on the intermediates identified by HPLC‒MS, a mechanism for SMX degradation was proposed. Our results will provide a new idea for the development of efficient electrocatalytic degradation of antibiotics.
- Subjects
LEAD oxides; RARE earth oxides; SULFAMETHOXAZOLE; ELECTROCHEMICAL electrodes; ELECTRODES; ELECTROCHEMICAL experiments
- Publication
Scientific Reports, 2024, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/s41598-024-58893-z