Electrochemical removal of nitrate in high-salt wastewater with low-cost iron electrode modified by phosphate
简介：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 chal-lenging.In this work,a phosphate modified iron(P-Fe)cathode was prepared for electro-chemical 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)calcu-lations demonstrated that the modification of phosphoric acid improved the stability and the activity of the zero-valent iron electrode effectively for NO3-removal.The nitrate was firstly electrochemically reduced to ammonium,and then reacted with the anodic gener-ated hypochlorite to N2.In this study,a strategy was developed to improve the activity and stability of metal electrode for NO3-removal,which opened up a new field for the efficient reduction of NO3-removal by metal electrode materials.展开
学者：FengjiaoQuanGuangmingZhanPengfeiXUXiaolanChenWenjuanShenFalongJiaYunHeJianfenLI
关键词：Nitrate removalHigh-salt wastewaterElectrocatalysisPhosphate modified Iron
分类号：O646.21(物理化学（理论化学）、化学物理学)
在线出版日期：2025-02-28 （网站首发日期）
