Ultrasound Irradiation Preparation And Characterization Of Inorganic/polymer Nanocomposites

In this thesis, nano-scale semiconductor sulfides/polymer were been successfully prepared by ultrasound irradiation technique in the water system at room temperature and ambient pressure. The possible formation mechanisms of nano-materials were suggested. The main contents are listed as follows:1. CdS/PAM nanocomposites were been successfully synthesized in situ via an ultrasound-assisted route. XRD was used to analyze the phase of the as-prepared product. TEM and SEM were employed for characterization of the morphology and size of the product. The analysis of the IR spectrum for the final product showed the polymerization of AM monomers. The CdS/PAM nanocomposites obviously differed from CdS nanoparticles prepared under the same conditions at the electrochemical and photochemical properties, which would be due to the presence of PAM. At the same time, the possible formation mechanism was also suggested based on the results of experiments.2. ZnS/PAM nano-microspheres were been successfully synthesized in situ via an ultrasound-assisted route. XRD was used to analyze the phase of the as-prepared product. TEM and SEM were employed for characterization of the morphology and size of the product. The analysis of the IR spectrum for the final product showed the polymerization of AM monomers. The ZnS/PAM nanocomposites obviously differed from ZnS nanoparticles prepared under the same conditions at the electrochemical and photochemical properties, which would be due to the presence of PAM. At the same time, the possible formation mechanism was also suggested based on the results of experiments.3. CdS/P(AM-AA) nano-microspheres were been successfully synthesized in situ via an ultrasound-assisted route. XRD was used to analyze the phase of the as-prepared product. TEM and SEM were employed for characterization of the morphology and size of the product. The analysis of the IR spectrum for the final product showed the polymerization of AM and AA monomers. The CdS/P(AM-AA) nanocomposites obviously differed from CdS nanoparticles prepared under the same conditions at photochemical properties, which would be due to the presence of PAM. At the same time, the possible formation mechanism was also suggested based on the results of experiments.