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Facile construction of highly efficient MOF-based Pd@UiO-66-NH_(2)@ZnIn_(2)S_(4)flower-like nanocomposites for visible-light-driven photocatalytic hydrogen production

查看全文 作  者:Mengting [1]Cao;Fengli [1]Yang;Quan [1]Zhang;Juhua [1]Zhang;Lu [1]Zhang;Lingfeng [1]Li;Xiaohao [1]Wang;Wei-Lin [1]Dai 高影响力作者 机构地区:[1]Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials,Fudan University,Shanghai 200438,China高影响力机构 出  处:《Journal of Materials Science & Technology》索引2021年第17期,共11页高影响力期刊 基  金:the Natural Science Foundation of Shanghai(No.19ZR1403500);the National Natural Science Foundation of China(No.21373054);the Natural Science Foundation of Shanghai Science and Technology Committee(No.19DZ2270100)。 摘  要:Construction of metal-organic-frame works-based composite photocatalysts has attracted much attention for the reasonable band gap and high surface areas to improve the photocatalytic activity.In this study,the ternary heterojunction Pd@UiO-66-NH_(2)@ZnIn_(2)S_(4)nanocomposites were facilely prepared for the first time by a two-step method.The visible-light-promoted hydrogen production rate of 0.3%Pd@UiO-66-NH_(2)@ZnIn_(2)S_(4)reaches up to 5.26 mmol g^(-1)h^(-1),which is evidently much higher than pure UiO-66-NH_(2),ZnIn_(2)S_(4)and binary UiO-66-NH_(2)/ZnIn_(2)S_(4)composites.Such a huge improvement in the photocatalytic performance is mainly attributed to the matched band gap of ZnIn_(2)S_(4)and UiO-66-NH_(2),and the introduction of Pd NPs into photocatalysts that broaden spectral response range and promote the photon induced charge carrier separation.This work may provide a feasible approach for the design and construction of metal-organic-frameworks-based photocatalytic materials. 关 键 词:Metal-organic frameworks(MOFs) UiO-66-NH_(2) ZnIn_(2)S_4 Pd nanoparticles Photocatalytic hydrogen production
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