金属有机框架复合材料的制备及其性能研究  

Preparation and Characterization of Metal Organic Framework Material Composite

作　　者：赵田[1] 夏勇 李知函 孙翱魁 刘跃军[1] ZHAO Tian;XIA Yong;LI Zhihan;SUN Aokui;LIU Yuejun(School of Packaging and Materials Engineering,Hunan University of Technology,Zhuzhou Hunan 412007,China）Abstract Three metal-organic frameworks（MOFs）composites with bis（hydrotris（pyrazolyl）borato）iron（II)

机构地区：[1]湖南工业大学包装与材料工程学院,湖南株洲412007

出　　处：《包装学报》2018年第2期36-42,共7页Packaging Journal

基　　金：国家自然科学基金资助项目(11372108);湖南省自然科学基金资助项目(2018JJ3122)

摘　　要：通过气态扩散作用,合成了MIL-101(Cr)@[Fe(HB(pz)3)2]、NH2-MIL-101(Al)@[Fe(HB(pz)3)2]和MIL-100(Al)@[Fe(HB(pz)3)2]3种MOFs材料@([Fe(HB(pz)3)2])复合物。采用红外光谱仪、原子吸收光谱仪、X射线衍射仪、物理吸附仪对3种MOFs材料@[Fe(HB(pz)3)2]复合物的组成、结构和性能进行表征测试。测试结果表明:[Fe(HB(pz)3)2]成功进入MOFs材料的孔洞中,形成了MOFs材料@[Fe(HB(pz)3)2]的复合物;MOFs材料的孔洞结构使[Fe(HB(pz)3)2]形成了一层保护外壁,从而使复合物的热稳定性和化学稳定性。经原子吸收光谱测试,可知MIL-101(Cr)@[Fe(HB(pz)3)2]、NH2-MIL-101(Al)@[Fe(HB(pz)3)2]和MIL-100(Al)@[Fe(HB(pz)3)2]中分别含有质量分数为8.11%,7.42%和1.64%的[Fe(HB(pz)3)2]。最后,对比分析了MIL-101(Cr)@[Fe(HB(pz)3)2]、NH2-MIL-101(Al)@[Fe(HB(pz)3)2]与[Fe(HB(pz)3)2]经多次转变后的颜色变化情况,实验结果表明,MOFs材料@[Fe(HB(pz)3)2]的复合物可应用到防伪包装材料之中。Three metal-organic frameworks（MOFs） composites with bis（hydrotris（pyrazolyl）borato）iron（II） were synthesized by gas phase diffusion to yield MIL-101（Cr）@[Fe（HB（pz）3）2],NH2-MIL-101（Al）@[Fe（HB（pz）3）2] and MIL-100（Al）@[Fe（HB（pz）3）2] composites. The formation,structure and property of products were thoroughly characterized by FTIR、AAS、XRD、and BET measurements. The results showed that, spin crossover complex [Fe（HB（pz）3）2] was confined in the cages of the frameworks MOFs composites, the porous structure developed into a protecting layer and was much more thermal/solvent stable than that of bulk crystalline [Fe（HB（pz）3）2]. The identity of MIL-101（Cr）@[Fe（HB（pz）3）2], NH2-MIL-101（Al）@[Fe（HB（pz）3）2] and MIL-100（Al）@[Fe（HB（pz）3）2], with loading of iron complex at 8.11%, 7.42% and 1.64% respectively, were confirmed by AAS analysis. Finally, color change property of the products were carefully investigated through comparing with pure [Fe（HB（pz）3）2], and the results supported that the three novel MOF-based materials with isolated SCO units could be potentially used as anticounterfeit packaging materials.

关 键 词：金属有机框架材料 自旋交叉化合物 防伪包装材料 

分 类 号：O614.811[理学—无机化学] O646.8[理学—化学]