prikaz prve stranice dokumenta Spektrometrija masa uz induktivno spregnutu plazmu (ICP-MS) u analizi sorpcije iona lantanoida na nanočesticama željeza
Embargo period 2024-09-09
master's thesis
Spektrometrija masa uz induktivno spregnutu plazmu (ICP-MS) u analizi sorpcije iona lantanoida na nanočesticama željeza
Zagreb: University of Zagreb, Faculty of Science, 2022. urn:nbn:hr:217:774159
Oreč, Dajana
University of Zagreb
Faculty of Science
Department of Chemistry

Institutional repository: Repository of the Faculty of Science

Cite this document

Oreč, D. (2022). Spektrometrija masa uz induktivno spregnutu plazmu (ICP-MS) u analizi sorpcije iona lantanoida na nanočesticama željeza (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:774159

Oreč, Dajana. "Spektrometrija masa uz induktivno spregnutu plazmu (ICP-MS) u analizi sorpcije iona lantanoida na nanočesticama željeza." Master's thesis, University of Zagreb, Faculty of Science, 2022. https://urn.nsk.hr/urn:nbn:hr:217:774159

Oreč, Dajana. "Spektrometrija masa uz induktivno spregnutu plazmu (ICP-MS) u analizi sorpcije iona lantanoida na nanočesticama željeza." Master's thesis, University of Zagreb, Faculty of Science, 2022. https://urn.nsk.hr/urn:nbn:hr:217:774159

Oreč, D. (2022). 'Spektrometrija masa uz induktivno spregnutu plazmu (ICP-MS) u analizi sorpcije iona lantanoida na nanočesticama željeza', Master's thesis, University of Zagreb, Faculty of Science, accessed 26 May 2024, https://urn.nsk.hr/urn:nbn:hr:217:774159

Oreč D. Spektrometrija masa uz induktivno spregnutu plazmu (ICP-MS) u analizi sorpcije iona lantanoida na nanočesticama željeza [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2022 [cited 2024 May 26] Available at: https://urn.nsk.hr/urn:nbn:hr:217:774159

D. Oreč, "Spektrometrija masa uz induktivno spregnutu plazmu (ICP-MS) u analizi sorpcije iona lantanoida na nanočesticama željeza", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:217:774159

Metadata
TitleSpektrometrija masa uz induktivno spregnutu plazmu (ICP-MS) u analizi sorpcije iona lantanoida na nanočesticama željeza
Title (english)Inductively coupled plasma-mass spectrometry (ICP - MS) in the analysis of lanthanides ion sorption on iron nanoparticles
AuthorDajana Oreč
MentorSanda Rončević (mentor)
Committee memberSanda Rončević (predsjednik povjerenstva)
Committee memberMirta Rubčić (član povjerenstva)
Committee memberĐani Škalamera (član povjerenstva)
Committee memberIva Juranović Cindrić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Chemistry)
Zagreb
Defense date and country2022-09-09, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
Moderne grane tehnologije sve češće upotrebljavaju elemente skupine lantanoida što za posljedicu ima njihovu akumulaciju u vodenim sustavima okoliša. Rješavanju problema pristupa se s različitih stajališta, a u posljednje vrijeme pozornost se obraća na primjenu nanočestica željeza. Ovim je radom ispitana učinkovitost sorpcije iona odabranih lantanoida (lantan, cerij, samarij, europij, gadolinij) neutralnim nanočesticama i nanočesticama željeza funkcionaliziranim piridin‒2,6‒dikarboksilnom kiselinom u molarnom omjeru željeza i liganda 2:1. Uspješnost modifikacije nanočestica potvrđena je metodom infracrvene spektroskopije s Fourierovom transformacijom (FT‒IR), a morfološke promjene praćene smanjenjem veličine funckionaliziranih čestica metodom mikroskopije atomskih sila (AFM). Učinkovitost sorpcije lantanoida neutralnim i modificiranim nanočesticama ispitana je spektrometrijom masa uz induktivno spregnutu plazmu (ICP‒MS) koja potvrđuje porast sorpcije povećanjem masene koncentracije lantanoida. Potvrđen je utjecaj oblika i veličine nanočestica pri čemu funkcionalizirane nanočestice pokazuju učinkovitiju sorpciju. Ispitivanjem sorpcije u nižem koncentracijskom području s različitim vremenskim trajanjem, potvrđena je prevlast međučestičnog mehanizma pri nižim i površinske sorpcije pri višim koncentracijama.
Abstract (english)
Modern branches of technology increasingly apply elements of the lanthanoid group, which results in their accumulation in water systems of the environment. Solving the problem is approached from different points of view, and recently attention has been paid to the application of iron nanoparticles. This work tested the sorption efficiency of selected lanthanoid ions (lanthanum, cerium, samarium, europium, gadolinium) by zero‒valent nanoparticles and iron nanoparticles functionalized with pyridine‒2,6‒dicarboxylic acid in a 2:1 molar ratio of iron and ligand. The success of the nanoparticle modification was confirmed by the method of Fourier‒transformed infrared spectroscopy (FT‒IR), and the morphological changes followed by the decrease in the size of the functionalized particles by atomic force microscopy (AFM). The efficiency of lanthanoid sorption by neutral and modified nanoparticles was tested by inductively coupled plasma mass spectrometry (ICP‒MS), which confirms the increase in sorption with increasing mass concentration of lanthanoids. The influence of the shape and size of nanoparticles was confirmed, with functionalized nanoparticles showing more effective sorption. Examining sorption in a lower concentration range with different time durations confirmed the predominance of the interparticle mechanism at lower concentrations and surface sorption at higher concentrations.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:774159
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 conditionsEmbargoed access
Embargo expiration date: 2024-09-09
Terms of useLicence In copyright icon
Created on2022-10-20 12:55:40