prikaz prve stranice dokumenta Zelena sinteza koloidnog srebra kemijskom redukcijom pomoću cvjetnog meda
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undergraduate thesis
Zelena sinteza koloidnog srebra kemijskom redukcijom pomoću cvjetnog meda
završni rad
2023. urn:nbn:hr:167:788914
Arar, Klara
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

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Arar, K. (2023). Zelena sinteza koloidnog srebra kemijskom redukcijom pomoću cvjetnog meda : završni rad (Undergraduate thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:788914

Arar, Klara. "Zelena sinteza koloidnog srebra kemijskom redukcijom pomoću cvjetnog meda : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2023. https://urn.nsk.hr/urn:nbn:hr:167:788914

Arar, Klara. "Zelena sinteza koloidnog srebra kemijskom redukcijom pomoću cvjetnog meda : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2023. https://urn.nsk.hr/urn:nbn:hr:167:788914

Arar, K. (2023). 'Zelena sinteza koloidnog srebra kemijskom redukcijom pomoću cvjetnog meda : završni rad', Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, accessed 23 April 2024, https://urn.nsk.hr/urn:nbn:hr:167:788914

Arar K. Zelena sinteza koloidnog srebra kemijskom redukcijom pomoću cvjetnog meda : završni rad [Undergraduate thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2023 [cited 2024 April 23] Available at: https://urn.nsk.hr/urn:nbn:hr:167:788914

K. Arar, "Zelena sinteza koloidnog srebra kemijskom redukcijom pomoću cvjetnog meda : završni rad", Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, Split, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:167:788914

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Metadata
TitleZelena sinteza koloidnog srebra kemijskom redukcijom pomoću cvjetnog meda : završni rad
Title (english)Green synthesis of colloidal silver by chemical reduciton using flower honey : bachelor thesis
AuthorKlara Arar
MentorDamir Barbir (mentor)
Committee memberPero Dabić (predsjednik povjerenstva)
Committee memberJelena Jakić (član povjerenstva)
Committee memberDamir Barbir (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Engineering and Chemistry)
Split
Defense date and country2023-07-21, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
U ovom radu proučavana je sinteza nanočestica srebra pomoću cvjetnog meda pri pH vrijednosti 6, 7, 8. 9 i 10. Kao izvor srebra korišten je srebrov nitrat koncentracije 0,001 mol dm -3 , a pH vrijednost je namještana otopinom natrijeva hidroksida. Prvi dokaz nastanka koloidnog srebra bilo je određivanje intenziteta Tyndallova efekta u svakom uzorku uslijed propuštanja laserske zrake kroz koloide. UV-Vis spektrofotometrom u području valnih duljina 300-600 nm i TEM (Transmisijski elektronski mikroskop) analizom izvršena je karakterizacija uzoraka nastalog koloidnog srebra. UV-Vis spektroskopijom dobiveni su oštri apsorpcijski maksimumi pri valnim duljinama 420-450 nm čime je dokazano nastajanje nanočestica srebra. Pomoću PWHM metode procjenjena je veličina nanočestica srebra za sve uzorke i iznosila je od 10-65 nm. TEM analizom potvrđeno je dobivanje sferičnih nanočestica srebra s prosječnom veličinom čestica od 17-39 nm.
Abstract (english)
In this work, the synthesis of silver nanoparticles with flower honey at pH values of 6, 7, 8, 9 and 10 was studied. Silver nitrate with a concentration of 0.001 mol dm -3 was used as the silver source, and the pH was adjusted with sodium hydroxide solution. The first evidence of colloidal silver formation was the determination of the intensity of the Tyndall effect in each sample as a result of the passage of a laser beam through the colloids. Using a UV-Vis spectrophotometer in the wavelength range of 300-600 nm and a TEM (transmission electron microscope) analysis, the samples of colloidal silver formed were characterized. UV- Vis spectroscopy showed the appearance of sharp absorption maxima at wavelengths of 420-450 nm, proving the formation of silver nanoparticles. Using the PWHM method, the size of silver nanoparticles was estimated for all samples and ranged from 10 to 65 nm. The TEM analysis confirmed that they were spherical silver nanoparticles with an average particle size of 17-39 nm.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:788914
Study programmeTitle: Chemical Technology; specializations in: Chemical Engineering, Environmental Protection
Course: Chemical Engineering
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 resourceText
File originBorn digital
Access conditionsOpen access
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Created on2023-12-01 10:03:22