Sinteza i primjena nanočestica željezovih oksida

undergraduate thesis

• Title (english): Synthesis and application of iron oxide nanoparticles
• Author: Emilija Krivošija
• Mentor: Ana Vrsalović Presečki (mentor)
• Committee member: Ana Vrsalović Presečki (predsjednik povjerenstva)
• Committee member: Anita Šalić (član povjerenstva)
• Committee member: Zvonimir Katančić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2021-09-20, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering

Abstract

Željezov oksid je mineralni spoj koji se pojavljuje u različitim polimorfnim oblicima koji uključuju hematit (α-Fe2O3), magnetit (Fe3O4) i maghemit (γ-Fe2O3). Nanočestice željezovih oksida karakteriziraju veliki omjer površine i volumena, jaka adsorpcijska sposobnost, visoka reaktivnost, magnetska svojstva, biorazgradivost i niska toksičnost. Mogu se sintetizirati brojnim metodama, od kojih su najčešće sutaloženje, sol-gel, mikroemulzija i toplinska razgradnja, a posljednjih je godina posvećena posebna pozornost biološkoj sintezi, tj. zelenoj sintezi. Ovaj rad opisuje metode dobivanja nanočestica željezovih oksida s naglaskom na zelenu sintezu. Također u radu su dani glavni principi različitih tehnika karakterizacije te mogućnosti katalitičke i biomedicinske primjene željezovih nanočestica. Nanočestice željezovih oksida pokazuju visoke performanse u katalitičkim reakcijama, kao npr. pri toplinskoj razgradnji pogonskih goriva, a od velike su važnosti i u sanaciji okoliša, pogotovo u obradi voda. Nadalje, opsežno su proučavane na području biomedicine u svrhu isporuke lijekova, liječenja raka i neurodegenerativnih bolesti.

Abstract (english)

Iron oxide is a mineral compound that occurs in various polymorphic forms, including hematite (α-Fe2O3), magnetite (Fe3O4), and maghemite (γ-Fe2O3). Iron oxide nanoparticles are characterized by a large surface-to-volume ratio, strong adsorption capacity, high reactivity, magnetic properties, biodegradability, and low toxicity. They can be synthesized by numerous methods, with the most common being coprecipitation, sol-gel, microemulsion and thermal decomposition. In recent years special attention has been paid to biological synthesis, ie green synthesis. This paper describes methods for obtaining nanoparticles of iron oxides with emphasis on green synthesis. The paper also deals with the main principles of different characterization techniques and the possibilities of catalytic and biomedical application of iron nanoparticles.. Nanoparticles of iron oxides show high performance in catalytic reactions, such as in the thermal decomposition of solid fuels and are of great importance in environmental remediation, especially in water treatment. Furthermore, they have been extensively studied in the field of biomedicine as the carrier for drug delivery, cancer treatment and neurodegenerative diseases.

• Keywords: nanočestice željezovih oksida; sinteza; kataliza; toplinska razgradnja; sanacija okoliša; biomedicina
• Keywords (english): iron oxide nanoparticles; synthesis; catalysis; thermal decomposition; environmental remediation; biomedicine
• Language: croatian
• URN:NBN: urn:nbn:hr:149:082597
• Study programme: Title: Materials Science and Engineering - Undergraduate study; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-04-06 09:09:48