Electrochemical oxidation of Rhodamine B with cerium and sodium dodecyl benzene sulfonate co-modified Ti/PbO2 electrodes: Preparation, characterization, optimization, application

doi:10.1016/j.cjche.2020.09.044

Chinese Journal of Chemical Engineering ›› 2021, Vol. 32 ›› Issue (4): 191-202.DOI: 10.1016/j.cjche.2020.09.044

• Catalysis, Kinetics and Reaction Engineering • Previous Articles Next Articles

Electrochemical oxidation of Rhodamine B with cerium and sodium dodecyl benzene sulfonate co-modified Ti/PbO₂ electrodes: Preparation, characterization, optimization, application

Zhen Wei^1,2, Xuanqi Kang¹, Shangyuan Xu¹, Xiaokang Zhou¹, Bo Jia¹, Qing Feng^1,2

1 Xi'an TaiJin Industrial Electrochemical Technology CO., Ltd, Xi'an 710016, China;
2 Key Laboratory of Porous Metal Materials, Shaanxi Institute for Materials Engineering, Northwest Institute for Non-ferrous Metal Research, Xi'an 710016, China

Received:2020-02-07 Revised:2020-08-29 Online:2021-06-19 Published:2021-04-28
Contact: Zhen Wei, Qing Feng
Supported by:
Thanks to the financial support from the Science and technology project of Shaanxi Province (2017ZDXM-GY-041).

Electrochemical oxidation of Rhodamine B with cerium and sodium dodecyl benzene sulfonate co-modified Ti/PbO₂ electrodes: Preparation, characterization, optimization, application

Zhen Wei^1,2, Xuanqi Kang¹, Shangyuan Xu¹, Xiaokang Zhou¹, Bo Jia¹, Qing Feng^1,2

1 Xi'an TaiJin Industrial Electrochemical Technology CO., Ltd, Xi'an 710016, China;
2 Key Laboratory of Porous Metal Materials, Shaanxi Institute for Materials Engineering, Northwest Institute for Non-ferrous Metal Research, Xi'an 710016, China

通讯作者: Zhen Wei, Qing Feng
基金资助:
Thanks to the financial support from the Science and technology project of Shaanxi Province (2017ZDXM-GY-041).

Abstract

Abstract: 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.

Key words: Ti/PbO₂ electrodes, Electrocatalytic oxidation

摘要： 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.

关键词: Ti/PbO₂ electrodes, Electrocatalytic oxidation

Zhen Wei, Xuanqi Kang, Shangyuan Xu, Xiaokang Zhou, Bo Jia, Qing Feng. Electrochemical oxidation of Rhodamine B with cerium and sodium dodecyl benzene sulfonate co-modified Ti/PbO₂ electrodes: Preparation, characterization, optimization, application[J]. Chinese Journal of Chemical Engineering, 2021, 32(4): 191-202.

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Electrochemical oxidation of Rhodamine B with cerium and sodium dodecyl benzene sulfonate co-modified Ti/PbO₂ electrodes: Preparation, characterization, optimization, application

Electrochemical oxidation of Rhodamine B with cerium and sodium dodecyl benzene sulfonate co-modified Ti/PbO₂ electrodes: Preparation, characterization, optimization, application

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