prikaz prve stranice dokumenta Elektrokemijsko dobivanje koloidnog srebra pomoću natrijevog citrata
  Download
PDF 1.39 MB
master's thesis
Elektrokemijsko dobivanje koloidnog srebra pomoću natrijevog citrata
diplomski rad
2019. urn:nbn:hr:167:154193
Čačinović, Nives
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

Cite this document

Čačinović, N. (2019). Elektrokemijsko dobivanje koloidnog srebra pomoću natrijevog citrata : diplomski rad (Master's thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:154193

Čačinović, Nives. "Elektrokemijsko dobivanje koloidnog srebra pomoću natrijevog citrata : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:167:154193

Čačinović, Nives. "Elektrokemijsko dobivanje koloidnog srebra pomoću natrijevog citrata : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:167:154193

Čačinović, N. (2019). 'Elektrokemijsko dobivanje koloidnog srebra pomoću natrijevog citrata : diplomski rad', Master's thesis, University of Split, Faculty of Chemistry and Technology, accessed 19 November 2024, https://urn.nsk.hr/urn:nbn:hr:167:154193

Čačinović N. Elektrokemijsko dobivanje koloidnog srebra pomoću natrijevog citrata : diplomski rad [Master's thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2019 [cited 2024 November 19] Available at: https://urn.nsk.hr/urn:nbn:hr:167:154193

N. Čačinović, "Elektrokemijsko dobivanje koloidnog srebra pomoću natrijevog citrata : diplomski rad", Master's thesis, University of Split, Faculty of Chemistry and Technology, Split, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:167:154193

Please login to the repository to save this object to your list.
Metadata
TitleElektrokemijsko dobivanje koloidnog srebra pomoću natrijevog citrata : diplomski rad
Title (english)Electrochemical synthesis of colloidal silver with sodium citrate : diploma thesis
AuthorNives Čačinović
MentorDamir Barbir (mentor)
MBZ: 307703
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 country2019-09-26, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Koloidno srebro posjeduje baktericidno, bakteriostatsko, antivirusno i antifungalno djelovanje protiv više od 500 mikroorganizama. Sve su češća istraživanja dobivanja koloidnog srebra zelenom sintezom, radi njegove moguće primjene u medicini kao učinkovitog antimikrobnog sredstva. Pri provedbi postupka dobivanja koloidnog srebra, važno je odabrati prihvatljivo otapalo, ekološki neškodljiv reducens i netoksičan stabilizator. U ovom radu, ispitivano je elektrokemijsko dobivanje koloidnog srebra pomoću trinatrijevog citrata dihidrata. Koloid srebra, koji je dobiven primjenom natrijevog borohidrida, služi kao standardni uzorak. Vrši se procjena intenzitet Tyndallovog efekta u dobivenim koloidima te se određuje apsorbancija UV-Vis spektrofotometrom u području valnih duljina od 300 do 600 nm. Analizom spektrograma PWHM metodom (eng. Peak Width at Half Maximum) može se procijeniti veličina nastalih nanočestica srebra. Dobiveni apsorpcijski spektri imaju sličan grafički oblik s naglašenim vrhom maksimalne apsorbancije u području od 390 do 425 nm. Procijenjena veličina čestica uzoraka dobivenih zelenom sintezom iznosi od 14 do 35 nm.
Abstract (english)
Colloidal silver has bactericidal, bacteriostatic, antiviral and antifungal activity against more than 500 microorganisms. Research into the production of colloidal silver by green synthesis is becoming increasingly common for its possible application in medicine as an effective antimicrobial agent. In the process of obtaining colloidal silver, it is important to choose an acceptable solvent, an environmentally friendly reducing agent and a non-toxic stabilizer. In this paper, the electrochemical synthesis of colloidal silver using trisodium citrate dihydrate was investigated. The silver colloid, obtained by the use of sodium borohydride, serves as a standard sample. The intensity of the Tyndall effect in the colloids obtained is evaluated and the absorbance of the UV-Vis spectrophotometer is determined in the wavelength range from 300 to 600 nm. By analyzing the PWHM (Peak Width at Half Maximum) spectrogram, the size of the silver nanoparticles formed can be estimated. The absorption spectra obtained have a similar graphical form with a pronounced peak of maximum absorbance in the range of 390 to 425 nm. Estimated particle size of samples obtained by green synthesis is 14 to 35 nm.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:154193
Study programmeTitle: Chemical Technology; specializations in: Materials, Environmental Protection, Mediteranean Cultures
Course: Materials
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka kemijskog inženjerstva (magistar/magistra inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2019-11-28 12:52:05