吡哆醛酰肼修饰的新型发光金属有机框架材料的制备及表征  

Preparation and Characterization of Pyridoxal hydrazide Modified Novel Luminescent Metal-Organic Frameworks

作　　者：赵秀阳 刘雪峰 武鑫 焦媛 贾琬鑫 董川 

机构地区：[1]山西大学环境科学研究所化学化工学院,山西太原030006

出　　处：《山西大学学报（自然科学版）》2017年第4期823-829,共7页Journal of Shanxi University(Natural Science Edition)

基　　金：国家自然科学基金(21575084;21475080);山西省高等学校科技创新项目(2016102)

摘　　要：采用水热法合成了金属有机框架材料ZIF-8,进一步将能够选择性识别铜离子的吡哆醛酰肼(PAH)发光有机分子修饰在其表面和孔腔内,制得一种新型的发光型金属有机框架材料(PAH/ZIF-8),并通过核磁共振光谱(~1 H NMR,^(13) C NMR)、红外光谱(FTIR)、X射线衍射(XRD)和扫描电镜(SEM)对PAH/ZIF-8进行了形貌和结构表征。该发光材料的平均尺寸为81.2nm左右,近似球形,当在354nm的波长下激发时能够在473nm处产生荧光发射。基于铜离子与吡哆醛酰肼之间的配位络合作用能够使PAH的荧光猝灭,PAH/ZIF-8将会是一种潜在的铜离子传感材料。The metal-organic frameworks （MOFs） of zeolitic imidazolate framework-8 （ZIF-8） were assembled by hydrothermal method,and a novel luminescent MOFs was prepared by modifying luminescent organic molecule of pyridoxal hydrazide （PAH） which could recognise Cu^2＋ selectively on the surface and pore of ZIF-8. The morphology and structure of as-prepared PAH/ZIF-8 composites were characterized by nuclear magnetic resonance （^1H CNR, ^13C NMR）, fourier transform infrared spectroscopy （FT-IR）, X- ray powder diffraction （XRD） and scanning electron microscope （SEM）. The average diameter of the spherical PAH/ZIF-8 was 82 nm and it had fluorescence emission at 473 nm under the excitation of 354 nm, in addition, The fluorescence of PAH could be quenched in the presence of Cu^2＋ based on the coordinative complex formation between PAH and Cu^2＋ , so the PAH/ZIF-8 will be a potential candidate for Cu^2＋ sensing.

关 键 词：发光 金属有机框架材料 吡哆醛酰肼 铜离子传感 

分 类 号：O627[理学—有机化学]