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undergraduate thesis
Metode izdvajanja metalnih iona iz vodenih otopina
2017. urn:nbn:hr:182:482238
Vidović, Barbara
Josip Juraj Strossmayer University of Osijek
Department of Chemistry
Department of General, Inorganic and Physical Chemistry and Methodology of Chemistry

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Vidović, B. (2017). Metode izdvajanja metalnih iona iz vodenih otopina (Undergraduate thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:482238

Vidović, Barbara. "Metode izdvajanja metalnih iona iz vodenih otopina." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2017. https://urn.nsk.hr/urn:nbn:hr:182:482238

Vidović, Barbara. "Metode izdvajanja metalnih iona iz vodenih otopina." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2017. https://urn.nsk.hr/urn:nbn:hr:182:482238

Vidović, B. (2017). 'Metode izdvajanja metalnih iona iz vodenih otopina', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 24 September 2023, https://urn.nsk.hr/urn:nbn:hr:182:482238

Vidović B. Metode izdvajanja metalnih iona iz vodenih otopina [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2017 [cited 2023 September 24] Available at: https://urn.nsk.hr/urn:nbn:hr:182:482238

B. Vidović, "Metode izdvajanja metalnih iona iz vodenih otopina", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:182:482238

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Metadata
TitleMetode izdvajanja metalnih iona iz vodenih otopina
Title (english)Extraction of metal ions from aqueous solutions
AuthorBarbara Vidović
MentorBerislav Marković (mentor)
MentorTomislav Balić (pomoć pri izradi, neposredni voditelj)
GranterJosip Juraj Strossmayer University of Osijek
Department of Chemistry
(Department of General, Inorganic and Physical Chemistry and Methodology of Chemistry)
Osijek
Defense date and country2017-07-21, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
Metali su kemijski elementi koji su zbog svoje rasprostranjenosti u cjelokupnom ekološkom sustavu predmet mnogih istraživanja. Nagli razvoj tehnologije uveliko je narušio kvalitetu životu zbog izlaganja toksičnih tvari u prirodu. U ovome radu opisana je metoda ekstrakcije metalnih iona iz vodenih otopina kao primjer jedne od učinkovitih metoda izoliranja metalnih iona. Za ekstrakciju se koriste makrociklički spojevi koji su građom velike cikličke molekule koje sadrže barem devet atoma unutar prstena od kojih minimalno tri moraju biti donori elektronskoga para. Makrocikli svojim donorskim atomom lako vežu metalne katione dajući kompleks iz kojega se izoliraju metalni kationi. Jedna od vrsta makrocikličkih spojeva su Schiffove baze nastale kondenzacijom amina s aldehidima ili ketonima. Zbog svoje kemijske stabilnosti i mogućnosti vezanja kationa prijelaznih metala, ova vrsta makrocikla ima važnu ulogu u ekstrakciji metalnih iona. U eksperimentalnom dijelu napravljena je ekstrakcija vodenih otopina soli različitih nitrata uz pomoć dva markociklička liganda te je mjerena apsorbancija metalnih kationa na UV-VIS spektrofotometru. Na osnovi dobivenih podataka izračunata je ekstraktibilnost u postotku za svaki metalni kation.
Abstract (english)
Metals are chemical elements which, due to their prevalence in the entire ecological system, are subject of extensive research. Today's technology development affected the quality of life due to exposure of toxic substances in nature. This paper describes the methods of metal ion extraction from aqueous solutions. This method is an example of effective way for isolation of the metal ions. Extraction using macrocyclic compounds that are cyclic molecules containing at least nine ring atoms, of which at least three have to be an electron pair donor was studied. Donor atom of the macrocycle easily binds the metal cations, and in such way they make complex from which metal cations can be isolated. One type of macrocyclic compounds are Schiff bases, that are formed by the condensation of amines with aldehydes or ketones. Due to its chemical stability and the ability to bind metal cations, this type of macrocycle is important in the process of metal ion extraction. Experimental section desribes extraction of metal cations from aqueous solutions of different salts using two microcyclic ligands and the absorbance was measured using UV-VIS spectrophotometer. The percentage of extractability was calculated for each metal cation.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:182:482238
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
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Created on2018-01-15 09:30:42