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master's thesis
Sinteza i površinska modifikacija superparamgnetnih nanočestica u protočnom mikrofluidičkom reaktoru
2018. urn:nbn:hr:182:291142
Živković, Pavo
Josip Juraj Strossmayer University of Osijek
Department of Chemistry
Department of Analytical, Organic and Applied Chemistry

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Živković, P. (2018). Sinteza i površinska modifikacija superparamgnetnih nanočestica u protočnom mikrofluidičkom reaktoru (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:291142

Živković, Pavo. "Sinteza i površinska modifikacija superparamgnetnih nanočestica u protočnom mikrofluidičkom reaktoru." Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2018. https://urn.nsk.hr/urn:nbn:hr:182:291142

Živković, Pavo. "Sinteza i površinska modifikacija superparamgnetnih nanočestica u protočnom mikrofluidičkom reaktoru." Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2018. https://urn.nsk.hr/urn:nbn:hr:182:291142

Živković, P. (2018). 'Sinteza i površinska modifikacija superparamgnetnih nanočestica u protočnom mikrofluidičkom reaktoru', Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 18 November 2024, https://urn.nsk.hr/urn:nbn:hr:182:291142

Živković P. Sinteza i površinska modifikacija superparamgnetnih nanočestica u protočnom mikrofluidičkom reaktoru [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2018 [cited 2024 November 18] Available at: https://urn.nsk.hr/urn:nbn:hr:182:291142

P. Živković, "Sinteza i površinska modifikacija superparamgnetnih nanočestica u protočnom mikrofluidičkom reaktoru", Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:182:291142

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TitleSinteza i površinska modifikacija superparamgnetnih nanočestica u protočnom mikrofluidičkom reaktoru
Title (english)Synthesis and surface modification of superparamagnetic nanoparticles in microfluidic flow reactor
AuthorPavo Živković
MentorAleksandar Sečenji (mentor)
MentorOlivera Galović (mentor)
Committee memberTomislav Balić (predsjednik povjerenstva)
Committee memberAleksandar Sečenji (član povjerenstva)
Committee memberOlivera Galović (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Department of Chemistry
(Department of Analytical, Organic and Applied Chemistry)
Osijek
Defense date and country2018-07-17, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Organic Chemistry
Abstract
Nanočestice magnetita sintetizirane su koprecipitacijom iz otopine koja sadrži fero i feri ione otopinom natrijeva hidroksida u mikrofluidičkom reaktoru. Površina nanočestica magnetita modificirana je lizinom. Uvjeti sinteza su sistematski mijenjani kako bi se provjerio njihov utjecaj na veličinu nastalih nanočestica. Veličina nastalih nanočestica kontrolirana je promjenom početnih uvjeta, ukupnom brzinom protoka i omjerom brzine bočnih i srednjeg kanala. Povećanjem ukupne brzine protoka s 3 na 7,5 μL/s veličina nanočestica se smanjila s 8,59 na 4,22 nm, a povećanjem omjera brzine bočnih i srednjeg kanala s 1,5 na 4 veličina nanočestica se povećala sa 4,23 na 7,2 nm. Nastale nanočestice karakterizirane su IR spektrofotometrijom s Fourierovom transformacijom kako bi se dokazala površinska modifikacije te transmisijskom elektronskom mikroskopijom kojom smo odredili veličinu nastalih nanočestica.
Abstract (english)
Magnetite nanoparticles are synthesized using co-precipitation method from solution containing ferrous and ferric ions with solution of sodium hydroxide in microfluidic reactor. Surface of magnetite nanoparticles is modified with lysine. Synthesis parameters are systematically changed to make sure which of them and how affect the size of obtained nanoparticles. Particle size has been controlled through adjustment of initial parameters, total flow rate and ratio of flow rates of side and main channel. Increasing total flow rate from 3 to 7,5 μL/s, size of nanoparticles is reduced from 8,59 to 4,22 nm. Increasing ratio of flow rates of side and main channel from 1,5 to 4 resulted in increasing nanoparticles size from 4,23 to 7,2 nm. Obtained nanoparticles are characterized with IR spectrophotometry to confirm surface modification and with transmission electron microscopy with which size of obtained nanoparticles is determined.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:182:291142
Study programmeTitle: Graduate University Study of Chemistry; research direction
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 on2018-12-28 12:54:30