摘要
氮氧化物(NOx)是造成大气污染的主要污染物之一,工业窑炉和燃煤电厂等固定源以及以机动车为代表的移动源所排放的氮氧化物对生态环境造成了一系列的危害。为此控制并降低NOx排放是当前十分艰巨的任务。金属有机骨架材料(MOFs)这种新型的多孔聚合材料由于其多活性位点、高比表面积、结构可修饰、易于功能化而表现出突出的多相催化性能近年来在低温工业脱硝领域逐渐受到关注。本文总结了MOFs材料在氨低温催化还原氮氧化物反应中的应用进展,重点阐述了单金属和双金属的MOFs材料的应用以及MOFs衍生物催化剂的研究。最后对MOFs在低温脱硝领域中目前存在的问题并对其发展方向和前景进行了展望。
Nitrogen oxides(NO_x)are one of the main pollutants causing atmospheric pollution.Nitrogen oxides emitted from fixed sources such as industrial furnaces and coal-fired power plants and mobile sources such as motor vehicles have caused a series of damage to the ecological environment.Controlling and reducing NO_x emission is a very difficult task at present.In the past decades,metal-organic frameworks(MOFs)have shown prominent heterogeneous catalytic activity due to their multiple active sites,large BET surface area,structuraldiversity and easy functionalization.These characteristics have attracted more and more attention to MOFs catalyst materials in the field of low-temperature industrial denitration in recent years.This review summarizes the application progress of MOFs materials in the low-temperature selective catalytic reduction of nitrogen oxides by ammonia.This review focuses on the application of MOFs materials of single and hybrid metals and the study of MOFs-derived composite catalysts.Finally,the current problems of MOFs in the field of low-temperature denitrification are proposed,and the development directions and prospects are prospected.
作者
王晓晗
刘彩霞
宋春风
马德刚
李振国
刘庆岭
Xiaohan Wang;Caixia Liu;Chunfeng Song;Degang Ma;Zhenguo Li;Qingling Liu(Tianjin Key Laboratory of Indoor Air Environmental Quality Control,School of Environmental Science and Technology,Tianjin University,Tianjin 300350,China;Tianjin University State Key Laboratory of Engines,Tianjin University,Tianjin 300350,China;National Engineering Laboratory for Mobile Source Emission Control Technology,China Automotive Technology&Research Center,Tianjin 300300,China)
出处
《化学进展》
SCIE
CAS
CSCD
北大核心
2020年第12期1917-1929,共13页
Progress in Chemistry
基金
天津市应用基础与前沿技术研究计划(No.16JCQNJC05400,15JCQNJC08500)
移动源污染排放控制技术国家工程实验室开放基金(No.NELMS2017A03)
国家自然科学基金项目(No.21503144,21690083)
天津市生态环境治理科技重大专项(No.18ZXSZSF00210,18ZXSZSF00060)资助。
关键词
金属有机骨架材料
氮氧化物
选择性催化还原法
低温脱硝
metal-organic framew orks(MOFs)
nitrogen oxides(NO_x)
selective catalytic reduction
low temperature denitrification
