Electrochemical oxidation of Rhodamine B with cerium and sodium dodecyl benzene sulfonate co-modified Ti/PbO2 electrodes: Preparation, characterization, optimization, application
| Autor: | Zhou Xiaokang, Xu Shangyuan, Kang Xuanqi, Feng Qing, Wei Zhen, Bo Jia |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Electrolysis
Environmental Engineering Materials science General Chemical Engineering chemistry.chemical_element 02 engineering and technology General Chemistry Electronic structure 021001 nanoscience & nanotechnology Electrochemistry Biochemistry Redox law.invention Cerium chemistry.chemical_compound 020401 chemical engineering chemistry law Electrode Rhodamine B 0204 chemical engineering SODIUM DODECYL BENZENE SULFONATE 0210 nano-technology Nuclear chemistry |
| Zdroj: | Chinese Journal of Chemical Engineering. 32:191-202 |
| ISSN: | 1004-9541 |
| DOI: | 10.1016/j.cjche.2020.09.044 |
| Popis: | Regulation of the electronic structure and interface property becomes a major strategy in the preparation of electro-catalyst. This paper reports the synthesis of cerium (Ce) and sodium dodecyl benzene sulfonate (SDBS) co-modified Ti/PbO2 electrodes (Ti/PbO2-Ce-SDBS). Ce and SDBS could greatly change the electronic structure and interface property of PbO2. Ti/PbO2-Ce-SDBS exhibited excellent electrocatalytic activity and stability in Rhodamine B (RhB) electrocatalytic oxidation reaction. The improved electrocatalytic activity associates with the synergistic effect of electronic and interface factors. In the electrochemical degradation of RhB, the removal efficiencies of RhB and COD are about 0.880 and 0.694 respectively after the electrolysis of 220 min with Ti/PbO2-Ce-4-SDBS-40, which are higher than the contrast Ti/PbO2 electrodes. In the meantime, the accelerated lifetime of Ti/PbO2-Ce-4-SDBS-40 is more than 6.2 times than that of Ti/PbO2. |
| Databáze: | OpenAIRE |
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