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master's thesis
Emisijska plazma spektrometrija u analizi sorpcije kroma na nanočesticama željeza
Zagreb: University of Zagreb, Faculty of Science, 2016. urn:nbn:hr:217:134207
Toth, Leontina
University of Zagreb
Faculty of Science
Department of Chemistry

Institutional repository: Repository of the Faculty of Science

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Toth, L. (2016). Emisijska plazma spektrometrija u analizi sorpcije kroma na nanočesticama željeza (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:134207

Toth, Leontina. "Emisijska plazma spektrometrija u analizi sorpcije kroma na nanočesticama željeza." Master's thesis, University of Zagreb, Faculty of Science, 2016. https://urn.nsk.hr/urn:nbn:hr:217:134207

Toth, Leontina. "Emisijska plazma spektrometrija u analizi sorpcije kroma na nanočesticama željeza." Master's thesis, University of Zagreb, Faculty of Science, 2016. https://urn.nsk.hr/urn:nbn:hr:217:134207

Toth, L. (2016). 'Emisijska plazma spektrometrija u analizi sorpcije kroma na nanočesticama željeza', Master's thesis, University of Zagreb, Faculty of Science, accessed 25 December 2024, https://urn.nsk.hr/urn:nbn:hr:217:134207

Toth L. Emisijska plazma spektrometrija u analizi sorpcije kroma na nanočesticama željeza [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2016 [cited 2024 December 25] Available at: https://urn.nsk.hr/urn:nbn:hr:217:134207

L. Toth, "Emisijska plazma spektrometrija u analizi sorpcije kroma na nanočesticama željeza", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:217:134207

Metadata
TitleEmisijska plazma spektrometrija u analizi sorpcije kroma na nanočesticama željeza
Title (english)Emission plasma spectrometry in analysis of chromium sorption on iron nanoparticles
AuthorLeontina Toth
MentorSanda Rončević (mentor)
Committee memberSanda Rončević (predsjednik povjerenstva)
Committee memberBiserka Prugovečki (član povjerenstva)
Committee memberInes Primožič (član povjerenstva)
Committee memberPredrag Novak (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Chemistry)
Zagreb
Defense date and country2016-09-29, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
Emisijskom plazma spektrometrijom analiziran je sadržaj kroma u modelnim vodenim otopinama nakon sorpcije Cr(VI) na neutralnim nanočesticama željeza (nZVI). Pri tome su prethodno sintetizirane nanočestice željeza postupkom redukcije s NaBH4 koje su korištene u eksperimentima te im je ispitana čistoća obzirom na sadržaj ostalih metala metodom ICPAES. Uspoređene su djelotvornosti uklanjanja Cr(VI) iz vodenih otopina sa i bez modifikacije s 1,5-difenilkarbazidom kao kompleksirajućim reagensom i promjena u efikasnosti uklanjanja Cr(VI). U koncentracijskom području 1-5 mg L-1 Cr(VI) uz dodatak kompleksirajućeg reagensa utvrđena je bolja efikasnost uklanjanja (96%) u odnosu na otopine bez dodatka liganda. Pri većim sadržajima Cr(VI) u modelnim otopinama manje su izražene varijacije u efikasnosti uklanjanja u odnosu na otopine bez dodataka 1,5- difenilkarbazida.
Abstract (english)
The content of Cr(VI) in model aqueous solutions after sorption of Cr(VI) on zero valent iron nanoparticles (nZVI) was analysed with emission plasma spectrometry. The iron nanoparticles were prepared by reduction method with NaBH4 and used in experiment, their purity was examined considering the content of other metals using ICP-AES. The efficiency of Cr(VI) removal from aqueous solutions was compared with and without modification by 1,5-diphenylcarbazide as a complexing reagent. In concentration range 1-5 mg L-1 of Cr(VI) with the addition of complexing reagent is determined better removal efficiency (96%) compared to the solutions without the addition of ligand. At the higher content of Cr(VI) in model solutions were less marked variations in removal efficiency as compared to the solutions without added 1,5-diphenylcarbazide.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:134207
Study programmeTitle: Graduate university studies in chemistry; specializations in: Research programme
Course: Research programme
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra kemije (magistar/magistra kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2017-01-27 11:19:19