Microscopy of thallium thiostibate in some organic solvents

Title : Microscopy of thallium thiostibate in some organic solvents

Abstract:

In this work, Tl3SbS4-nanocrystals were synthesized by solvotermal method in various organic solvents ( ethylene glycol+polyetylene glycol). Optimal conditions for obtaining nanoparticles were determined (molar rations of the amount of components, volume ratio of the solvent, temperature, time, etc.) The crystal structere, morphology, nano-size and the obtained thallium thiostibitate nanocompound were studied usung a scanning electron mocricsope (SEM). During the experinments, potassium antimonyl tartrate was used as the antimony material, and a solution of sulfur in ethylenediamine was used as the sulfide material. The synthesis of Tl3SbS4 nanoparticles was carried out by adjusting the moolare ratio of sulfur to thalliuym and controlling the volume ratios of the solvent and the organic medium (ethylene glycol+polyetylene glycol and polyvinylpyrrolidonne). The process was carried out at a tempereature of 383-393K for 12 hours, and thallium-thiostibate nanoparticles were synthesized with a yiled of 89%. The results of scanning electron microscopy analysis showed that the synthesized thalkliuym thiostibitate nanoparticles had various shapes (wine-line, oval, quadrangular, triangular, etc.) and their sizes ranged from 180 to 400nm. The size of Tl3SbS4 nanoparticles obtained in ethylene glycol+polyethylene glycol medium was 250-700 nm, the size Tl3SbS4 nanopartciles obtained in polyvinylpyrrolidone medium was180-350nm. At the same time, a dispersed solution of thalliuym thiostibitate (Tl3SbS4) nanoparticles in n-heptane was prepared.

Biography:

Sevda Hasan Aliyeva, is graduated with nonors from the Azerbaijan State Oil Academy in 2008-2012 with a bachelor’s degree in “Oil and gas and alternative energy texnology”. She has graduated from the Azerbaijan State Oil Academy in 2012-214 with a master’s degree in “Inorganic substances production technology”. Since 2018, she has started ny her scientific actifity at the Nakhchivan branch of the Azerbaijan National Academy of Science. In 2019-2023, she was a doctoral candidate at the Nakhchivan branch of the Azerbaijan National Academy of Sciences and in 2025 she defended her scientific thesis on the topic “Obtaining thiostibitates from the interaction of antimony (V) sulfide with Ag1+, Cu1+, Cu2+, Tl1+ and Sb3+ ions in water and organic media and stydying their physicochemical”. Currently, she is a research associate at the “Laboratory of Chemistry and Technology of Mineral Raw Materials” of the Institute of Natural Resources of the Ministry of science and education of the republic of Azerbaijan. She is also a teacher at Nakhchivan State universitity. She is the author of more than 25 scientific works.