Ni基Ag-Cu合金电极的制备及其在水杨酸降解过程的应用

宋秀丽, 闫瑞景, 刘宪, 芦宝平

doi:10.16577/j.cnki.42-1215/tb.2021.03.017

材料保护 >

2021 , Vol. 54 >Issue 3: 100 - 105

DOI: https://doi.org/10.16577/j.cnki.42-1215/tb.2021.03.017

工艺探讨

Ni基Ag-Cu合金电极的制备及其在水杨酸降解过程的应用

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1太原师范学院化学系； 2太原特益达科技有限公司

宋秀丽(1973-)，博士, 副教授, 硕士生导师, 主要研究方向为应用电化学研究, 电话: 13834643773, E - mail: songxiuli725@126.com

收稿日期: 2022-09-22

网络出版日期: 2025-07-10

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Preparation of Ni - Based Ag - Cu Alloy Electrode and Its Application in Degradation Process of Salicylic Acid

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(1. Department of Chemistry, Taiyuan Normal University, Jinzhong 030619, China;2. Taiyuan Teyida Technology Co., Ltd., Taiyuan 030024, China)

Received date: 2022-09-22

Online published: 2025-07-10

Supported by

山西省应用基础研究计划项目(201901D111292, 201601D102010); 山西省高等学校教学改革创新项目(J2020278); 太原师范学院教学改革项目(JGLX1931)资助

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摘要

为给电极的制备及水杨酸的降解提供一定理论依据，采用电沉积法制备了Ni基Ag - Cu合金电极并应用于水杨酸的降解过程。对不同Ag - Cu物质的量比例的Ni基Ag - Cu合金电极的电化学性能进行了考察，探索了在板间距、外加电压、电解时间等试验条件相同时，不同电解液浓度对水杨酸降解率的影响，比较了电化学氧化降解和声电协同降解效果。结果表明：在温度、电流密度、电极间距、电极材料等试验条件相同，当电沉积液nAg∶nCu=8∶2时，Ni基Ag - Cu合金电极表面形貌良好，对水杨酸的降解率最高。Na2SO4作为电解质时最佳电解液浓度为1.064 g/L，此时对水杨酸的电化学氧化降解率为98.01%，而声电协同降解率为99.89%，协同效应下降解完全程度更高。

关键词： 电沉积法; Ag - Cu合金电极; 电化学氧化降解; 声电协同降解; 水杨酸

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宋秀丽, 闫瑞景, 刘宪, 芦宝平 . Ni基Ag-Cu合金电极的制备及其在水杨酸降解过程的应用[J]. 材料保护, 2021 , 54(3) : 100 -105 . DOI: 10.16577/j.cnki.42-1215/tb.2021.03.017

Abstract

In order to provide a theoretical basis for the preparation of electrode and the degradation of salicylic acid Ni - based Ag - Cu alloy electrodes were prepared by electrodeposition method, which was further applied in the degradation process of salicylic acid. The electrochemical properties of the Ni - based Ag - Cu alloy electrodes with different molar ratios of Ag - Cu were studied. Under the same plate spacing, plus voltage, electrolysis time, the effects of electrolyte concentration on the degradation rate of salicylic acid were explored and the electrochemical oxidation degradation and ultrasound - assisted electrochemical synergetic degradation rate were compared. Results showed that under the same temperature, current density, electrode materials and distance between the anode and the cathode, when nAg∶nCu in the electrodeposition solution was equal to 8∶2, the surface morphology of Ni - based Ag - Cu alloy electrode is good, and the degradation rate of salicylic acid was the highest. The most suitable Na2SO4 electrolyte concentration was 1.064 g/L. Under this condition, the degradation rate of salicylic acid was 98.01%, and the ultrasound - assisted electrochemical oxidation rate was 99.89%, indicating that the degradation rate of salicylic acid under the synergy effect was higher.

Key words： lectrodeposition method; Ag - Cu alloy electrode; electrochemical oxidation degradation; ultrasound - assisted electrochemical synergetic degradation rate; salicylic acid

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