Novel zinc carboxylates metal–organic frameworks (Zn-MOFs) with different sizes and shapes constructed by Zn(II) ions, succinate and isonicotinate were synthesized by a polymer-assisted method. The samples were characterized by scanning electron microscope, powder X-ray diffraction and fluorescence spectroscopy. Results indicated that the size and shape of the Zn-MOFs could be adjusted by changing the quantity of polyvinyl alcohol (PVA). Fluorescence sensing of 2-nitrotoluene, 4-nitrotoluene and 2,4-dinitrotoluene was also studied and the results revealed that the as-prepared Zn-MOFs with a sheet-like shape were highly sensitive to nitro-compounds and promising to be developed as a novel luminescent sensor for detection in nitroaromatic explosives.

中文翻译：

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用于传感硝基芳族化合物的羧酸锌金属有机框架的合成

通过聚合物辅助方法合成了由 Zn(II) 离子、琥珀酸盐和异烟酸盐构成的具有不同尺寸和形状的新型羧酸锌金属有机骨架 (Zn-MOFs)。采用扫描电镜、粉末X射线衍射和荧光光谱对样品进行了表征。结果表明，可以通过改变聚乙烯醇（PVA）的量来调整Zn-MOFs的尺寸和形状。还研究了 2-硝基甲苯、4-硝基甲苯和 2,4-二硝基甲苯的荧光传感，结果表明，所制备的片状 Zn-MOFs 对硝基化合物高度敏感，有望开发为一种用于检测硝基芳烃爆炸物的新型发光传感器。