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Multicomponent hybrids of surfactant-capped lanthanide polyoxometalates and ZIF-8 with tuneable luminescence

机译:表面活性剂封端的镧系多金属氧酸盐和ZIF-8的多组分杂化物具有可调的发光

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摘要

Two lanthanide polyoxometalates [Na(9)LnW(10)O(36)center dot 32H(2)O and K(13)Ln(SiW11O39)(2)center dot 30H(2)O (Ln - Eu, Tb, Sm, Dy), abbreviated as LnW(10) and LnSiW(11), respectively] were prepared and functionalized with hexadecyltrimethyl ammonium bromide to give surfactant-capped polyoxometalates (SLnW(10)/SLnSW(11)). Zeolitic imidazolate framework (ZIF-8) nanoparticles were prepared and combined with these SLnW(10)/SLnSiW(11) polyoxometalates. Both the inorganic components were formed into multicomponent hybrids via a polymerization reaction between ethyl methacrylate and 4-vinyl pyridine in the presence of a benzoyl peroxide initiator. The physical characterization and photoluminescence of these hybrid materials were investigated in detail. The luminescence colour was tuned by adjusting the building units. These results provide useful data for the preparation of multicomponent hybrid materials for practical optical applications.
机译:两个镧系元素多金属氧酸盐[Na(9)LnW(10)O(36)中心点32H(2)O和K(13)Ln(SiW11O39)(2)中心点30H(2)O(Ln-Eu,Tb,Sm ,Dy),分别缩写为LnW(10)和LnSiW(11)],并用十六烷基三甲基溴化铵官能化,得到表面活性剂封端的多金属氧酸盐(SLnW(10)/ SLnSW(11))。制备了沸石咪唑盐骨架(ZIF-8)纳米粒子,并将其与这些SLnW(10)/ SLnSiW(11)多金属氧酸盐组合。两种无机组分在过氧化苯甲酰引发剂的存在下通过甲基丙烯酸乙酯和4-乙烯基吡啶之间的聚合反应形成多组分杂化体。详细研究了这些杂化材料的物理特性和光致发光。通过调整构建单位来调整发光颜色。这些结果为制备用于实际光学应用的多组分混合材料提供了有用的数据。

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