prikaz prve stranice dokumenta Hidrotermalna sinteza složenih metalnih oksida
  Download
PDF 2.63 MB
undergraduate thesis
Hidrotermalna sinteza složenih metalnih oksida
2020. urn:nbn:hr:182:981346
Vicić, Antonia
Josip Juraj Strossmayer University of Osijek
Department of Chemistry

Cite this document

Vicić, A. (2020). Hidrotermalna sinteza složenih metalnih oksida (Undergraduate thesis). Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:981346

Vicić, Antonia. "Hidrotermalna sinteza složenih metalnih oksida." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2020. https://urn.nsk.hr/urn:nbn:hr:182:981346

Vicić, Antonia. "Hidrotermalna sinteza složenih metalnih oksida." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2020. https://urn.nsk.hr/urn:nbn:hr:182:981346

Vicić, A. (2020). 'Hidrotermalna sinteza složenih metalnih oksida', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 15 March 2023, https://urn.nsk.hr/urn:nbn:hr:182:981346

Vicić A. Hidrotermalna sinteza složenih metalnih oksida [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2020 [cited 2023 March 15] Available at: https://urn.nsk.hr/urn:nbn:hr:182:981346

A. Vicić, "Hidrotermalna sinteza složenih metalnih oksida", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:182:981346

Please login to the repository to save this object to your list.
Metadata
TitleHidrotermalna sinteza složenih metalnih oksida
Title (english)Hydrothermal synthesis of complex metal oxides
AuthorAntonia Vicić
MentorIgor Đerđ (mentor)
GranterJosip Juraj Strossmayer University of Osijek
Department of Chemistry
Osijek
Defense date and country2020-09-30, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
Hidrotermalna sinteza predstavlja postupak kojim se mogu sintetizirati nanomaterijali koji svakim danom pronalaze sve širu primjenu u raznim granama djelatnosti. Upravo zbog te činjenice znanstvenici se sve češće okreću ovoj metodi. Hidrotermalna sinteza se može definirati kao heterogena reakcija u otapalu podvrgnuta utjecaju visoke temperature i tlaka tijekom određenog vremena. Glavni parametri koji se prate u hidrotermalnoj sintezi su tlak, temperatura i vrijeme. Osim prethodno navedenih parametara, koriste se različiti agensi kako bi se kontrolirala morfologija čestica. Korištenjem hidrotermalne metode u završnom radu sintetiziran je stroncijev molibdat (SrMoO4) uz različite koncentracije otopina natrijeva hidroksida, NaOH (1 M i 6 M) koji je korišten kao mineralizator. Dobivenim uzorcima je testirana fotokatalitička aktivnost na razgradnju boja rodamin B, metilen plavo i bromtimol zeleno pomoću UV/VIS spektroskopije. Spojevi su analizirani rentgenskom difrakcijom na prahu (PXRD) čime je utvrđeno da je sinteza s 1 M otopinom NaOH bolja za sintezu stroncijeva molibdata jer je dobiven spoj s malo primjesa. Međutim, bolju fotokatalitičku aktivnost pri razgradnji sve tri boje je pokazao uzorak sintetiziran sa 6 M otopinom NaOH.
Abstract (english)
Hydrothermal synthesis is a process used to synthesize nanomaterials, which find their use in in numerous fields. Precisely because of this fact, scientists are more frequently considering this method for use in nanomaterial processing. Hydrothermal synthesis can be defined as a heterogeneous reaction in solvent, under the influence of high temperature and pressure during a specific time. Alongside previously mentioned parameters, various different agents are used in order to control the morphology of particles. In this particular case, strontium molybdate (SrMoO4) was synthesized using different concentrations of sodium hydroxide (NaOH) solutions (1 M and 6 M) which was used as a mineralizer. Photocatalytic activity of as-prepared samples was tested towards decomposition of rhodamine B, methylene blue and bromthymol green by means of UV/VIS spectroscopy. Compounds were analyzed by powder X-ray diffraction (PXRD) and it was observed that synthesis by using 1 M NaOH solution as mineralizer is more suitable because a targeted compound was obtained with less byphases. However, a compound synthesized by using 6 M NaOH as mineralizer showed better photocatalytic activity towards decomposition of all three dyes.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:182:981346
ProjectNumber: HRZZ-IP-2016-06-3115
Title: Istraživanje složenih multiferoičnih materijala pripravljenih metodama otopinske kemije
Leader: Igor Đerđ
Jurisdiction: Croatia
Funder: HRZZ
Study programmeTitle: Chemistry
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) kemije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2020-11-12 09:18:29