首页|Application of UiO-66 and its composites for remediation and resource recovery of typical environmental contaminants:a review
Application of UiO-66 and its composites for remediation and resource recovery of typical environmental contaminants:a review
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UiO-66 series metal-organic framework mate-rials(MOFs)are typical porous materials assembled by Zr4+with a large mass-to-nucleus ratio and terephthalic acid ligands,which form tetrahedral and octahedral cages arranged in a periodic triangular window pattern.Due to the strong interaction between Zr and O,UiO-66 series MOFs exhibit high thermal stability,structural stability,and chemical stability.This article mainly reviews the applications of UiO-66 and its composites in adsorption,photocatalysis,and resource utilization,while exploring the harm of pollutants to human health and the environ-ment.In the first part,the differences in adsorption and removal mechanisms of liquid organic pollutants,heavy metals,and volatile organic compounds(VOCs)are investigated.The results show that organic pollutants are mainly removed by physical adsorption,electrostatic interactions,hydrogen bonding,and 兀-兀 interactions,while heavy metals are mainly removed by chemical adsorption,electrostatic interactions,reduction,and chelation.VOCs are mainly removed by the pore volume and pore size structure of the material.Heterojunction catalysis can achieve non-toxic treatment of pollutants,and this study mainly focuses on UiO-based composite materials con-structed by strategies such as semiconductor composites,ion doping,and metal/dye encapsulation.In the second part,the synergistic effect between the components of UiO-based composite materials promotes the oriented and rapid separation and transfer of carriers at the material interface,thereby promoting the generation of active species such as h+,O2-and·OH,and achieving rapid degradation of pollutants and detoxification of heavy metals.In the third part,heterojunctions can realize the resource utilization of pollutants in water and air,producing energy-type sub-stances such as hydrogen and methanol while solving environmental problems.In addition,this article also summarizes the harm of common typical pollutants to the environment and human health.Finally,the development prospects and unresolved problems of UiO-66-based materials in water remediation,gas purification,and envi-ronmental resource utilization are reviewed.
School Infirmary,Henan University of Urban Construction,Pingdingshan 467036,China
Faculty of Environmental and Municipal Engineering,Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology,Key Laboratory of Carbon Emission Reduction and Combined Air Pollution Control Technology,Henan University of Urban Construction,Pingdingshan 467036,China
School of Resources & Environment,Collaborative Innovation Center of Coalbed Methane and Shale Gas for Central Plains Economic Region,Henan Polytechnic University,Jiaozuo 454003,China
The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters,Ministry of Education,Guangzhou Higher Education Mega Centre,South China University of Technology,Guangzhou 510006,China
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国家自然科学基金Zhongyuan Yingcai JihuaHenan Key Scientific Research ProjectsHenan Postdoctoral FoundationNatural Science Youth Fund of Henan ProvinceNatural Science Youth Fund of Henan Province江苏省自然科学基金河南省科技计划International Science and Technology Cooperation Projects of Henan ProvinceYoung Teacher Foundation of Henan University of Urban Construction中国博士后科学基金Academic Leader of Henan Institute of Urban ConstructionScience and Technology Major Special of PingdingshanKey University Scientific Research Project of Henan ProvinceDoctoral Research Startup Project of Henan University of Urban Construction
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