含锌的金属有机框架(Zn-MOF)的制备与荧光性能研究  

Preparation and Fluorescence Properties of a Zinc-Based Luminescent Metal-Organic Framework(Zn-MOF)

作　　者：段丽娜 裴小菲 韩彩云 DUAN Lina;PEI Xiaofei;HAN Caiyun(Linfen Comprehensive Inspection and Testing Center,Linfen 041000,Shanxi,China;The Second Middle School of Hongtong,Hongtong 041600,Shanxi,China)

机构地区：[1]临汾综合检验检测中心,山西临汾041000 [2]洪洞县第二中学校,山西洪洞041600

出　　处：《山西师范大学学报（自然科学版）》2024年第4期37-41,共5页Journal of Shanxi Normal University(Natural Science Edition)

摘　　要：随着材料技术的发展,传统的无机或者有机发光材料,由于它们多样化的功能,已经广泛应用于人们的生活中.金属有机框架材料(MOFs)是由有机配体和金属离子通过配位键组成的新型多孔晶体材料.MOFs这种新型的有机/无机复合材料作为发光材料是非常有应用前景的.Zn^(2+)与对苯二甲酸反应得到的MOF(Zn-BDC)为非发光材料.为得到荧光材料,实验选择以Zn^(2+)为代表的电子组态为d10的过渡金属离子与两种有机羧酸配体:对苯二甲酸、对(4-苯基吡啶基)甲基苯甲酸合成具有荧光性质的Zn-MOF配合物.由于对(4-苯基吡啶基)甲基苯甲酸参与配位,Zn-MOF具有发光性能.该材料荧光光谱结果显示,在波长350 nm激发条件下,该材料在411 nm有1个很强的发射峰.用紫外灯(λ=365 nm)在常温常压下分别照射这两种MOFs材料,Zn-BDC无荧光,而合成的Zn-MOF配合物呈蓝色,其最有可能产生荧光的原因是配体内部的(π-π^(∗))作用引起的跃迁.该实验为有效探索新型MOFs荧光材料提出了合适的合成方向.With the development of materials technology,traditional inorganic and organic luminescent materials have been extensively explored and realized for their diverse functionalities and applications in our daily life.Metal-organic frameworks(MOFs)are a new class of porous crystalline materials constructed from organic ligands and metal ions/clusters through coordination bonds.MOFs,the new type of organic-inorganic hybrid materials is certainly very promising as a multi-functional luminescent material.Nonluminescent Zn-BDC was synthesized by the reaction of Zn^(2+)with 1,4-dicarboxybenzene.In order to obtain fluorescent materials,this experiment selected Zn^(2+)as the representative transition metal ion with electronic configuration d10 and two organic carboxylic acid ligands:1,4-dicarboxybenzene and p-(4-phenylpyridinyl)methylbenzoic acid to synthesize Zn-MOF materials with fluorescent properties.Due to the coordination of p-(4-phenylpyridinyl)methylbenzoic acid,ZnMOF exhibited luminescent properties.The fluorescence spectrum results of the material shows that under excitation at a wavelength of 350 nm,the material had a strong emission peak at 411 nm.Under UV(λ=365 nm)lamp at normal temperature and pressure,Zn-BDC was a nonluminescent MOF,while Zn-MOF revealed a crystalline blue luminescent material,which mainly comes from the transition from ligand to ligand.And an appropriate design strategy direction for the effective exploration of new Luminescent MOF materials is proposed.

关 键 词：金属有机框架(MOF) 复合材料 Zn-BDC 荧光 合成 

分 类 号：O61[理学—无机化学]