20.500.12556/DKUM-63291 SONOKEMIJSKA SINTEZA IN KARAKTERIZACIJA INDIJEVIH IN GALIJEVIH SULFIDOV SONOCHEMICAL SYNTHESIS AND CHARACTERIZATION OF INDIUM AND GALLIUM SULFIDES Sonokemija je definirana kot področje kemije, kjer kemijske reakcije potekajo pod vplivom ultrazvoka, zaradi zvočne energije. Ultrazvok je s povezanimi pojavi znan že več kot eno stoletje, njegova uporaba pa dosega še večji razcvet v današnjih časih. Danes se veliko znanstvenikov ukvarja s tem področjem raziskovanja saj je dokaj inovativna stvar za stimulacijo kemijskih reakcij. Naše raziskave so temeljile na sintezah nanokristalov indijevih in galijevih sulfidov s sonokemijsko metodo. Namen raziskave je bil sintetizirati nanodelce s spreminjanjem vrste topila za indij in galij in s spreminjanjem množinskega razmerja med virom indija in virom galija. Ta metoda se je pri sintezah pokazala kot uporabna, saj smo kot produkt dobili nanokristalinične materiale. Pri sintezah smo uporabili direktno imerzijsko ultrazvočno sondo VibraCell. Dobljene produkte smo karakterizirali z rentgentsko praškovno difrakcijo (XRD), karakterizirali pa smo jih tudi z termičnogravimetrično analizo (TGA) . Za doseg optimalnih pogojev, smo spreminjali različne parametre, npr. vir galija, vir indija, vir žvepla, topilo, atmosfero in čas obsevanja. Sonochemistry is defined as the area of chemistry, in which chemical reactions take place under the influence of ultrasound, due to acoustic energy. Ultrasound is a related phenomenon that has been known for more than a century, its use achieves an even bigger boom in this day and age. Today, many scientists are involved in this research field since it is fairly innovative method to stimulate chemical reactions. Our research is based on the synthesis of nano-crystals of indium and gallium sulphide by sonochemical method. The purpose of the research was to synthesize nanoparticles with varying types of solvents for indium and gallium, and by changing the molar ratio between the source of indium and gallium source. This method of the synthesis proved useful because we obtained nanocrystalline materials as a result. For the synthesis we used the direct immersion ultrasonic probe VibraCell. The resulting products were characterized by X-Ray poeder diffraction (XRD) and also by thermal analysis (TGA). In order to achieve optimal conditions were changing various parameters, for example. the precursor of gallium, indium precursor, precursor of sulfur, the solvent, the atmosphere and the time of irradiation. sonokemija nanokristali indijevi in galijevi sulfidi rentgentska praškovna difrakcija termogravimetrična analiza sonochemistry nanocrystals indium and gallium sulfides X-ray powder diffraction thermal analysis true true false [A. Sever] Slovenski jezik Angleški jezik Diplomsko delo 2016-09-08 13:21:21 2016-10-17 08:39:21 2022-07-02 03:06:11 2019-07-11 13:23:09 2016 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 543.573:544.576(043.2) 20309014 URN:SI:UM:DK:XORQVVY0 UN_Sever_Anja_2016.pdf UN_Sever_Anja_2016.pdf 1 99B43DC90CB52FE7E0CB3D4A222C410E 66402048f02754522beb096de133830e99a3c7cbe53c59f00503836cee36f736 bfe717cc-7c0d-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=107289 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0