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在水/二甲基亚砜(DMSO)的混合溶液体系中,利用自组装方法,使5,10,15,20-四苯基卟啉铟(InTPP)分子聚集成纳米材料,并研究了其最优制备温度为50℃。通过场发射扫描电子显微镜(FE-SEM)对铟卟啉纳米材料的表面形貌进行了研究,可获得粒径为100～200nm的棒状铟卟啉纳米材料。利用紫外-可见光谱分析了铟卟啉单体与纳米材料光学性质的差别:在紫外-可见光谱中,铟卟啉纳米分散体系的Soret带吸收峰从原来的423nm分别红移到433和453nm,吸光值明显减小,峰形呈劈裂状且明显变宽。利用紫外-可见光谱对铟卟啉的光学检测性能进行了研究,将铟卟啉单体和纳米溶液体系对低浓度甲基膦酸二甲酯(DMMP)的检测效果进行了对比,结果显示铟卟啉纳米溶液体系的检测效果明显优于单体。
In the mixed solution of water / dimethylsulfoxide (DMSO) system, using self-assembly method, the 5,10,15,20-tetraphenyl porphyrin indium (InTPP) molecules gathered into nanomaterials, and studied its The optimal preparation temperature is 50 ℃. The surface morphology of indium porphyrin nanomaterials was investigated by field emission scanning electron microscopy (FE-SEM), and the rod-shaped indium porphyrin nanomaterials with particle size of 100-200 nm were obtained. The difference of optical properties between indium porphyrin monomer and nanomaterials was analyzed by ultraviolet-visible spectroscopy. In the UV-Vis spectrum, the Soret band absorption peak of the indium porphyrin nanodispersion shifted from 423nm to 433nm and 453nm respectively, Absorbance decreased significantly, the peak shape was split and significantly widened. The optical detection properties of indium porphyrin were studied by UV-Vis spectroscopy. Compared with the detection results of low concentration methyl methylphosphonate (DMMP) by indium porphyrin monomer and nanometer solution system, the results showed that indium Porphyrin nanometer solution system was significantly better than the monomer detection.