Visible light-enhanced thermal decomposition performance of ammonium perchlorate with a metal–organic framework-derived Ag-embedded porous ZnO nanocomposite
Visible light-enhanced thermal decomposition performance of ammonium perchlorate with a metal–organic framework-derived Ag-embedded porous ZnO nanocomposite
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DOI：
10.1039/c8nj04143a
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发表时间：
2018-11
影响因子：
3.3
通讯作者：
Jingfeng Wang;Yang Li;Yadong Qiao;Guan Yu;Jinzhu Wu;Xiaohong Wu;W. Qin;Liang-jin Xu
中科院分区：
文献类型：
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作者：
Jingfeng Wang;Yang Li;Yadong Qiao;Guan Yu;Jinzhu Wu;Xiaohong Wu;W. Qin;Liang-jin Xu
本研究以金属有机骨架（MOFs）作为Ag物种的主体和ZnO的模板，制备了具有丰富稳定界面的Ag嵌入多孔ZnO纳米复合材料（Ag-ZnO NCs），为构建杂化材料提供了一个理想的平台。值得注意的是，Ag-ZnO纳米粒子在紫外和可见光照射下对高氯酸铵（AP）的热催化分解表现出很高的催化活性。Ag-ZnO纳米粒子的高催化活性源于热驱动的热催化和太阳光驱动的光催化的协同效应。特别是在可见光照射下，等离子体金属Ag与相邻半导体ZnO之间的等离子体诱导共振能量转移（PRET）提高了载流子的产生效率，抑制了半导体中的体复合，从而使其具有优异的催化性能。
In this study, metal–organic frameworks (MOFs) are used as a host for Ag species and the template of ZnO to fabricate Ag-embedded porous ZnO nanocomposites (Ag–ZnO NCs) with rich and stable interfaces, which is proven to be a perfect platform for constructing hybrid materials. Remarkably, Ag–ZnO NCs exhibit high catalytic activity for the thermocatalytic decomposition of ammonium perchlorate (AP) under the assistance of ultraviolet and visible light irradiation. The highly enhanced catalytic activity of Ag–ZnO NCs originates from the synergistic effects of thermal-driven thermocatalysis and solar light-driven photocatalysis. Especially, under the irradiation of visible light, the plasmon-induced resonance energy transfer (PRET) between the plasmonic metal Ag and the neighboring semiconductor ZnO enhances the charge carrier generation efficiency and suppresses the bulk recombination in the semiconductor, which are responsible for its outstanding catalytic performance.