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eISSN: 2083-5906
ISSN: 1230-1485
ISSN: 1230-1485
ORIGINAL RESEARCH
Preparation of Novel TiO2-RNTs/SnO2-Sb/PbO2-La
Electrode and Degradation of Oily Wastewater by
Pulse Electrochemical Advanced Oxidation Process
1
College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
Submission date: 2025-11-21
Final revision date: 2026-02-03
Acceptance date: 2026-03-27
Online publication date: 2026-07-28
Corresponding author
Shaoqi Zhou
College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
KEYWORDS
TOPICS
ABSTRACT
The novel TiO2-RNTs/SnO2-Sb/PbO2-La electrode was prepared by electrodeposition,
and its performance was better than that of the Ti/SnO2-Sb/PbO2 electrode: it had a denser structure,
higher oxygen evolution potential (1.65 V), larger electrochemical active surface area (EASA = 138.47),
lower charge transfer resistance (5.4 Ω), and longer electrode strengthening life (960 min).
Under the optimal conditions, the degradation rate increased by 1.4 times, the oil removal rate was
95.65%, and the removal rate remained stable after 10 cycles. The failed electrode was re-prepared,
and the oil removal rate could still reach more than 95%. Compared with direct current, pulse
current electrolysis of wash oil wastewater can save 54.61% of electric energy and 76.80% of energy
consumption per unit mass of COD removal. Therefore, the pulse electrochemical oxidation method
using the TiO2-RNTs/SnO2-Sb/PbO2-La electrode is expected to improve the electrochemical treatment
of oily wastewater while reducing unnecessary energy loss.
CONFLICT OF INTEREST
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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| eISSN: | 2083-5906 |
| ISSN: | 1230-1485 |
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