Spektrometrijska analiza uklanjanja iona lantanoida iz vodenih otopina pomoću neutralnih nanočestica željeza inkapsuliranih u alginatnom hidrogelu

master's thesis

• Title (english): Spectrometric analysis of removal of lanthanide ions from aqueous solutions using calcium alginate encapsulated iron nanoparticles
• Author: Kristina Perić
• Mentor: Ivan Nemet (mentor)
• Committee member: Ivan Nemet (predsjednik povjerenstva)
• Committee member: Mirta Rubčić (član povjerenstva)
• Committee member: Nikola Cindro (član povjerenstva)
• Committee member: Tomislav Jednačak (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Chemistry); Zagreb
• Defense date and country: 2025-02-12, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Chemistry

Abstract

Elementi rijetkih zemalja zbog nekontroliranog razvitka rudarenja, tehnologije i drugih industrija, imaju sve veću praktičnu primjenu čime dolazi do povećanja njihove količine u okolišu, a posebice u vodenim medijima. Kako bi se zagađenje voda lantanoidima smanjilo potrebne su metode i tehnike koje omogućuju njihovo uspješno uklanjanje. Nanočestice željeza zbog svoje reaktivnosti i niske cijene čine pogodan nanomaterijal za uklanjanje lantanoida iz vodenih otopina. Cilj ovog rada je ispitivanje... More učinkovitosti sorpcije odabranih lakih i teških iona lantanoida; praseodimija, neodimija, erbija i tulija, neutralnim i funkcionaliziranim nanočesticama željeza inkapsuliranim u kalcijev alginat. Funkcionalizacija nanočestica željeza provodi se uz piridin-2,6-dikarboksilnu kiselinu. Spektrometrijom masa uz induktivno spregnutu plazmu (ICP-MS) analizirana je učinkovitost sorpcije odabranih iona lantanoida. Neutralne nanočestice željeza, u usporedbi s funkcionaliziranim nanočesticama željeza, pokazuju veću učinkovitost sorpcije. Less

Abstract (english)

Rare earth elements, due to the uncontrolled development of mining, technology and other industries, have an increasing practical application, which leads to an increase in their amount in the environment, especially in aquatic environments. To reduce water pollution by lanthanides, it is necessary to develop methods and techniques that enable their successful removal. Iron nanoparticles are, due to their reactivity and low cost, a suitable nanomaterial for the removal of lanthanides from... More aqueous solutions. The aim of this work is to examine the efficiency of sorption of selected light and heavy lanthanide ions; praseodymium, neodymium, erbium and thulium, by neutral and functionalized iron nanoparticles encapsulated in calcium alginate. Functionalization of iron nanoparticles is carried out with pyridine-2,6-dicarboxylic acid. The sorption efficiency of selected lanthanide ions was analyzed by inductively coupled plasma mass spectrometry (ICP-MS). Neutral iron nanoparticles, compared to functionalized iron nanoparticles, show higher sorption efficiency. Less

• Keywords: inkapsulacija; ICP-MS; nanočestice željeza; lantanoidi; sorpcija
• Keywords (english): encapsulation; ICP-MS; iron nanoparticles; lanthanides; sorption
• Language: croatian
• URN:NBN: urn:nbn:hr:217:207672
• Study programme: Title: Graduate university studies in chemistry; specializations in: Graduate university studies in chemistry; Course: Graduate university studies in chemistry; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra kemije (sveučilišni/a magistar/magistra kemije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2025-02-17 14:39:52