Tunable colors and white-light emission based on a microporous luminescent Zn(II)-MOF
Tunable colors and white-light emission based on a microporous luminescent Zn(II)-MOF
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DOI：
10.1039/c3dt53013b
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发表时间：
2014-01-01
影响因子：
4
通讯作者：
Zhu, Guangshan
中科院分区：
文献类型：
--
作者：
He, Hongming;Sun, Fuxing;Zhu, Guangshan
金属有机骨架材料是一类发展迅速的具有多种功能的杂化材料。永久孔隙率在功能特性中起着核心作用。特别是，具有永久孔隙的发光MOFs在客体物种识别和吸附方面具有广泛的应用。在这篇论文中，我们的目标是通过在微孔发光MOFs中封装Ln（3+）物种来开发可调谐颜色和白光发光材料。选择半刚性的三价羧酸1，3，5-三（4-羧基苯氧基）苯（H3 TCPB）作为有机结构单元，不仅是因为它适合于构建微孔框架，而且还因为它的蓝色发光。在溶剂热反应条件下，合成了一种具有永久孔隙率和蓝光发射的微孔MOF材料，[Zn-3（TCPB）（2）（H2O）（2）]中心点2 H（2）O中心点4DMF（JUC-113，JUC =吉林大学，中国）。根据三基色，由于Tb 3+和Eu 3+的颜色不同（Tb 3+，绿色; Eu 3+，红色），客体发光物种应该是Tb 3+和Eu 3+。此外，JUC-113的发光性能可以通过Tb 3+和Eu 3+的不同包封量的组合来容易地调节，从而获得白光发射材料。
Metal-organic frameworks (MOFs)are a rapidly growing class of hybrid materials with many multifunctional properties. The permanent porosity plays a central role in the functional properties. In particular, the luminescent MOFs with a permanent porosity have wide applications in guest species recognition and adsorption. In this contribution, we aim to develop tunable colors and white-light luminescence materials by the encapsulation of Ln(3+) species in microporous luminescent MOFs. A semi-rigid trivalent carboxylic acid 1,3,5-tri(4-carboxyphenoxy)benzene (H3TCPB)was selected as the organic building block, not only because it is suitable to construct microporous frameworks, but also by reason of its blue luminescent emission. Under solvothermal reactions, a microporous MOF material, [Zn-3(TCPB)(2)(H2O)(2)]center dot 2H(2)O center dot 4DMF (JUC-113, JUC = Jilin University, China), was synthesized, which has a permanent porosity and emits blue light. According to three-primary colors, the guest luminescent species should be Tb3+ and Eu3+ owing to their distinctive colors (Tb3+, green; Eu3+, red). In addition, the luminescent properties of JUC-113 can be easily tuned by different combinations of the encapsulation amount of Tb3+ and Eu3+, obtaining white-light emission materials.