高效金属-有机框架的工程设计用于光催化CO2还原OA

Over the past decades,excessive CO2 emissions have led to various environmental issues.Solar-driven photocatalytic conversion of CO2 into valuable chemicals offers a promising solution for energy and environmental problems.Recently,a class of porous coordination polymers that self-assemble from organic linkers and metal ions or clusters,metal-organic frameworks(MOFs),have been widely explored for photoinduced CO2 conversion because of their great CO2 capture ability and adjustable structures.However,the development of MOFs with high efficiency for CO2 conversion remains a significant challenge.In this review,we elaborate on four key engineering strategies for constructing efficient MOFs toward photocatalytic CO2 reduction:ligand engineering,secondary building unit(SBU)engineering,defect engineering,and morphology engineering.These strategies focus on optimizing key structural properties of MOFs that critically influence their catalytic performance in CO2 photoreduction,notably light absorption,CO2 adsorption capacity,and charge separation and transport.The established design principles and modulation strategies demonstrate broad applicability and can be extended to guide the rational design of diverse MOF-based functional systems.Furthermore,we critically evaluate the advantages and disadvantages of each strategy,highlighting their specific contributions and inherent limitations.Finally,we outline the development prospects and identify promising future research directions for MOF-based photocatalytic CO2 reduction.