Copper-based electro-catalytic nitrate reduction to ammonia from water:Mechanism,preparation,and research directions  

作　　者：Jinshan Wei Yi Li Hexing Lin Xihui Lu Chucheng Zhou Ya-yun Li 

机构地区：[1]Shenzhen Key Laboratory of Special Functional Materials&Shenzhen Engineering Laboratory for Advance Technology of Ceramics,College of Materials Science and Engineering,Shenzhen University,Shenzhen,518060,PR China

出　　处：《Environmental Science and Ecotechnology》2024年第4期42-62,共21页环境科学与生态技术（英文）

基　　金：supported by the National Natural Science Foundation of China(52372090,52073177);the National Natural Science Foundation of Guangdong,China(2023A1515010947);the Shenzhen Basic Research Program(JCYJ20220531102207017);The authors also gratefully acknowledge the Shenzhen postdoctoral research funding(Grant No.0001330501).

摘　　要：Global water bodies are increasingly imperiled by nitrate pollution,primarily originating from industrial waste,agricultural runoffs,and urban sewage.This escalating environmental crisis challenges traditional water treatment paradigms and necessitates innovative solutions.Electro-catalysis,especially utilizing copper-based catalysts,known for their efficiency,cost-effectiveness,and eco-friendliness,offer a promising avenue for the electro-catalytic reduction of nitrate to ammonia.In this review,we systematically consolidate current research on diverse copper-based catalysts,including pure Cu,Cu alloys,oxides,single-atom entities,and composites.Furthermore,we assess their catalytic performance,operational mechanisms,and future research directions to find effective,long-term solutions to water purification and ammonia synthesis.Electro-catalysis technology shows the potential in mitigating nitrate pollution and has strategic importance in sustainable environmental management.As to the application,challenges regarding complexity of the real water,the scale-up of the commerical catalysts,and the efficient collection of produced NH3 are still exist.Following reseraches of catalyst specially on long term stability and in situ mechanisms are proposed.

关 键 词：Water treatment Nitrate removal ELECTROCATALYSIS Cu catalysts Ammonia synthesis 

分 类 号：X703[环境科学与工程—环境工程]