Preparation of Ti/SnO2-IrO2 Electrode and Its Electrochemical Degradation of p-Chlorophenol

Abstract

Abstract: Electrochemical oxidation has manifested great advantages of low carbon, energy saving and cleanliness on degradation of toxic organics in water. The key to this technology is the development of efficient, stable and inexpensive anodes. A Ti/SnO₂-IrO₂ electrode was prepared by facile thermal decomposition method. The morphology and elemental composition of the electrode were characterized and the electrochemical performance of the electrode was analyzed. Furthermore, the Ti/SnO₂-IrO₂ electrode was used to degrade p-chlorophenol, and the influence of various factors, including current density, initial concentration of p-chlorophenol, concentration of Cl^-, on the degradation effect was adequately investigated. The results show that the Ti/SnO₂-IrO₂ electrode has a long lifetime and good electrochemical performance. Especially, when the electrode is used to degrade p-chlorophenol at the current density of 20 mA·cm^-2, the initial p-chlorophenol concentration of 300 mg/L and the Cl^- concentration of 1 000 mg/L, the removal rate of chemical oxygen demand (COD) can reach up to 89.02% with a low energy consumption of 0.596 kWh·g^-1. The excellent electrocatalytic performance of the Ti/SnO₂-IrO₂ electrode indicates its promising prospect for industrial applications.

Key words: electrode, anode material, Ti/SnO₂-IrO₂ electrode, electrochemical oxidation, COD, organic degradation, p-chlorophenol

CLC Number:

X703
O646

YANG Jiangtao, LI Xuan, CHEN Zehong, ZHANG Wei, WANG Zhongde. Preparation of Ti/SnO₂-IrO₂ Electrode and Its Electrochemical Degradation of p-Chlorophenol[J]. Journal of Synthetic Crystals, 2022, 51(6): 1076-1084.

References

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Preparation of Ti/SnO₂-IrO₂ Electrode and Its Electrochemical Degradation of p-Chlorophenol

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