Electrochemical removal of nitrate in high-salt wastewater with low-cost iron electrode modified by phosphate

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作者： Fengjiao Quan;Guangming Zhan;Pengfei Xu;Xiaolan Chen;Wenjuan Shen;...

通讯作者： Falong Jia

作者机构： College of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China
College of Chemistry, Central China Normal University, Wuhan 430079, China
School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

通讯机构： College of Chemistry, Central China Normal University, Wuhan 430079, China

语种：英文

期刊：环境科学学报(英文版)

ISSN： 1001-0742

年： 2025

卷： 148

页码： 38-45

DOI： 10.1016/j.jes.2024.01.007

摘要： Nitrate (NO3–) is a widespread pollutant in high-salt wastewater and causes serious harm to human health. Although electrochemical removal of nitrate has been demonstrated to be a promising treatment method, the development of low-cost electro-catalysts is still challenging. In this work, a phosphate modified iron (P-Fe) cathode was prepared for electrochemical removal of nitrate in high-salt wastewater. The phosphate modification greatly improved the activity of iron, and the removal rate of nitrate on P-Fe was three times higher than that on Fe electrode. Further experiments and density functional theory (DFT) calculations demonstrated that the modification of phosphor...

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