摘要
金属有机框架材料(MOFs)是由金属原子或原子团簇与有机配体构成的多孔材料,具有良好的吸附性和光催化活性。基于对植物光合作用的模拟,MOFs材料光催化将CO2还原转化为系列碳氢化合物燃料在环境保护和未来能源供应方面具有广阔的应用前景。该文简述了MOFs光催化还原CO2的机理,介绍了高催化活性MOFs材料的设计方法,主要包括能带结构工程(掺杂、配体取代、构建异质结等)、形貌结构功能化及协同催化等方式。这些设计实现了材料的较强光捕获,较高的气体吸附量、产物选择性、稳定性和光催化效率。最后提出了光催化还原CO2的发展趋势。
Metal-organic frameworks(MOFs)are porous materials composed of metal atoms or clusters of atoms and organic ligands with good adsorption and photocatalytic activity.Based on the simulation of plant photosynthesis,the photocatalytic reduction of CO2 into a series of hydrocarbon fuels by MOFs has a broad application prospect in environmental protection and future energy supply.The mechanism of MOFs photocatalytic reduction of CO2 is illustrated.The design methods of high catalytic activity MOFs materials are introduced,including energy band structure engineering(such as doping,ligand substitution,heterojunction construction),morphologic structure functionalization and collaborative catalysis.These method may achieve the capture of stronger light,higher gas adsorption,product selectivity,stability and photocatalytic efficiency,which improve catalytic efficiency.Finally,the future directions of photocatalytic reduction of CO2 by MOFs is prospected.
作者
谢汶珂
陈洁
XIE Wenke;CHEN Jie(School of Science,China University of Geosciences(Beijing),Beijing 100083,China)
出处
《精细化工》
EI
CAS
CSCD
北大核心
2020年第12期2386-2397,共12页
Fine Chemicals
