چكيده به لاتين
This study attempts to synthesis mesoporous zinc sulfide in cyclohexane as a insoluble media by consuming zinc nitrate hexahydrate and zinc chloride as zinc precursors as well as sodium sulfide, thioacetamide, sulfur, dimethyl sulfoxide and thiourea as sulfur precursors by using dodecylamine as surfactant via sonochemistry. Specimens were characterized by the results of X-ray diffraction, infrared spectroscopy, thermal gravimetric analysis and differential thermal analysis, field emission scanning electron microscopy, transmission electron microscope images, and the results of nitrogen uptake and desorption were performed to a valuable specific surface area and pore size distribution. According to the results, the formation of the by-product of the synthesis process, sodium nitrate and sodium chloride and co-precipitation in insoluble media, had a prominent role in the final mesoporous structure. During the synthesis process, ultrasonic waves not only help to initiate, increase the rate of reaction, thereby reducing the synthesis time, it helps to increase the precursor solubility and free radicals generation. In addition, the influence of the presence of different contents of dodecylamine in the cyclohexane leads to the final structure of the samples. According to the results, an increase in the concentration of surfactant results in the reduction of nanocrystallites and narrow pore size distribution in the zinc sulfide structure. In this study, it has been attempted to investigate the possibility of making zinc sulfide in insoluble media.
