铜碘簇合物的制备及荧光检测亚硝酸盐 --推荐-个综合化学设计性实验.

To foster student's research acumen and innovative abilities, and to deepen their comprehension of inorganic cluster compounds and fluorescent properties, a comprehensive experiment focusing on the synthesis of a cuprous iodide coordination polymer and its application in fluorescent detection of nitrites is designed. This experiment employs a nano-precipitation technique for the preparation of cuprous iodide coordination polymer. Various analytical methods, including Fourier transform infrared (FTIR), powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), UV-visible spectrophotometry, and fluorescence spectrophotometer, were utilized to characterize the material's structure and properties. The investigation into the polymer's fluorescence in detecting nitrites revealed high selectivity and sensitivity, with a detection limit of 3.73 µmol∙L-1, positioning the material as a viable "on-off" fluorescence probe for nitrite detection. Through this experiment, students can not only gain the deeper understanding of the structure of cluster polymers and the frontiers of fluorescence detection, but also learn the fundamental knowledge and operational skills in analytical instruments like UV-visible spectrophotometer, fluorescence spectrophotometer. This groundwork is essential for their future engagement in scientific research and related professional activities. [ABSTRACT FROM AUTHOR]