适用于高氯氨氮废水电催化处理的Ru-Ir电极合成表征及性能评价

杨振兴; 谢文玉; 李德豪; 阎光绪; 郭绍辉

doi:DOI:10.13205/j.hjgc.202207024

适用于高氯氨氮废水电催化处理的Ru-Ir电极合成表征及性能评价

doi: DOI:10.13205/j.hjgc.202207024

1. 中国石油大学(北京) 油气污染防治北京市重点实验室, 北京 102249;
2. 广东石油化工学院广东省石油化工污染过程与控制重点实验室, 广东茂名 525000

基金项目:

中国石油大学(北京)科学基金(2462020XKJS04)

详细信息

作者简介:
杨振兴(1988-),男,博士,主要研究方向为工业水污染防治与处理。yangzx_cup@163.com

通讯作者:
阎光绪(1962-),男,博士,教授,主要研究方向为"三废"治理与资源化、给排水系统优化、污染生态评价及修复。yangx@cup.edu.cn

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出版历程
- 收稿日期: 2021-08-31
- 网络出版日期: 2022-09-02

SYNTHESIS,CHARACTERIZATION AND PERFORMANCE EVALUATION OF Ru-Ir ELECTRODE FOR ELECTROCATALYTIC TREATMENT FOR AMMONIA-NITROGEN WASTEWATER WITH HIGH CHLORIDE CONTENT

1. Beijing Key Laboratory of Oil and Gas Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China;
2. Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming 525000, China

摘要

摘要: 研究了钌铱摩尔比对钌铱电极微观结构、化学性质、电化学性能和脱氮性能的影响。采用电化学方法测试了电极的电化学性能。结果表明:Ru-Ir固溶体为金红石晶体,晶粒分布均匀,连接紧密。随着Ir摩尔比的增加,Ru-Ir电极的电化学性能先升高后降低。当n(Ru):n(Ir)为2:1时,Ru_2/3Ir_1/3O₂电极的电化学性能最佳。Ru_2/3Ir_1/3O₂电极的析氯电位、腐蚀电流密度和电导率分别是RuO₂电极的0.998,0.755,1.816倍。在处理高氯氨氮模拟废水时,利用合成电极氧化脱除氨氮的结果表明,Ru_2/3Ir_1/3O₂电极的处理效果最好,当电流为0.5 A时,50 min内氨氮脱除率可达到75.2%,证明了电催化技术能有效处理高氯氨氮废水。
- 高氯氨氮废水 /
- Ru-Ir摩尔比 /
- Ru_2/3Ir_1/3O₂电极 /
- 电催化技术
Abstract: In this paper,the effect of the molar ratios of ruthenium (Ru)-iridium (Ir) on the microstructure,chemical properties,electrochemical performance,and denitrification performance of high ammonia-chloride wastewater were investigated.The results illustrated that Ru-Ir solid solution was a rutile crystal with uniform grain distribution and tight connection.The electrochemical performances of the electrodes were tested by electrochemical techniques.And the electrochemical performance of the Ru-Ir electrode first increased and then decreased with the increase of the molar ratio of Ir.The electrochemical properties of Ru_2/3Ir_1/3O₂ electrodes were the best when the molar ratio of Ru-Ir was 2:1.The chlorine evolution potential,corrosion current density,and conductivity of Ru_2/3Ir_1/3O₂ electrode were 0.998,0.755,and 1.816 times those of RuO₂,respectively.In the removal process of ammonia-nitrogen in high chloride ammonia-nitrogen simulated wastewater,the electrode with the best removal effect of ammonia-nitrogen was Ru_2/3Ir_1/3O₂ electrode,and when the current was 0.5 A,the ammonia-nitrogen removal rate could reach 75.2% in 50 minutes.This paper proved that electrocatalytic technology could effectively treat high chloride ammonia-nitrogen wastewater.
- high chloride ammonia-nitrogen wastewater /
- the molar ratios of Ru-Ir /
- Ru_2/3Ir_1/3O₂ electrode /
- electrocatalytic technology

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参考文献(15)

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