prikaz prve stranice dokumenta Ravnoteža adsorpcije bakrovih iona iz bakrovog (II) klorida na humusu
Embargo period 2024-11-16
master's thesis
Ravnoteža adsorpcije bakrovih iona iz bakrovog (II) klorida na humusu
diplomski rad
Split: University of Split, Faculty of Chemistry and Technology, 2022. urn:nbn:hr:167:766811
Graber, Tina
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

Institutional repository: Repository of the Faculty of chemistry and technology

Cite this document

Graber, T. (2022). Ravnoteža adsorpcije bakrovih iona iz bakrovog (II) klorida na humusu : diplomski rad (Master's thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:766811

Graber, Tina. "Ravnoteža adsorpcije bakrovih iona iz bakrovog (II) klorida na humusu : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2022. https://urn.nsk.hr/urn:nbn:hr:167:766811

Graber, Tina. "Ravnoteža adsorpcije bakrovih iona iz bakrovog (II) klorida na humusu : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2022. https://urn.nsk.hr/urn:nbn:hr:167:766811

Graber, T. (2022). 'Ravnoteža adsorpcije bakrovih iona iz bakrovog (II) klorida na humusu : diplomski rad', Master's thesis, University of Split, Faculty of Chemistry and Technology, accessed 16 June 2024, https://urn.nsk.hr/urn:nbn:hr:167:766811

Graber T. Ravnoteža adsorpcije bakrovih iona iz bakrovog (II) klorida na humusu : diplomski rad [Master's thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2022 [cited 2024 June 16] Available at: https://urn.nsk.hr/urn:nbn:hr:167:766811

T. Graber, "Ravnoteža adsorpcije bakrovih iona iz bakrovog (II) klorida na humusu : diplomski rad", Master's thesis, University of Split, Faculty of Chemistry and Technology, Split, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:167:766811

Metadata
TitleRavnoteža adsorpcije bakrovih iona iz bakrovog (II) klorida na humusu : diplomski rad
Title (english)Equilibrium adsorption of copper ions from copper (II) chloride on humus : master thesis
AuthorTina Graber
MentorMario Nikola Mužek (mentor)
Committee memberJelena Jakić (predsjednik povjerenstva)
Committee memberMaša Buljac (član povjerenstva)
Committee memberMario Nikola Mužek (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Engineering and Chemistry)
Split
Defense date and country2022-10-26, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Ispitana je adsorpcija bakrovih iona na prosijanom humusu u ovisnosti o različitim početnim koncentracijama otopina bakrovih iona (2,664 mmol dm-3, 4,244 mmol dm-3, 6,203 mmol dm-3, 8,013 mmol dm-3 i 9,949 mmol dm-3). Eksperiment je proveden pri stalnoj temperaturi od 308 K i brzini okretaja od 200 okr min-1, u trajanju od 96 h te veličini čestica < 500 μm. Početne i ravnotežne koncentracije bakrovih iona u otopini bakrovog(II) klorida, c0 i ce, izmjerene su mjerenjem na UV/VIS spektrofotometru pri valnoj duljini od 815 nm. Na temelju dobivenih rezultata može se zaključiti kako se količina adsorbiranih bakrovih iona (qe) neznatno mijenja s porastom početne koncentracije bakrovih iona u otopini (c0), a svoju maksimalnu vrijednost dostiže pri početnoj koncentraciji od 8,013 mmol dm-3 te iznosi qe = 0,495 mmol g-1 za uvjete pri kojima je eksperiment proveden. Najviši učinak adsorpcije bakrovih iona postignut je pri najnižoj odabranoj početnoj koncentraciji otopine bakrovog(II) klorida (c0=2,664 mmol dm-3) i iznosi 57,375% te nakon toga opada s porastom početne koncentracije bakrovih iona u otopini. Najbolje slaganje eksperimentalnih podataka s modelima izotermi pokazuje Langmuirov adsorpcijski model.
Abstract (english)
The adsorption of copper ions on sieved humus was studied depending on the different initial concentrations of copper ion solutions (2.664 mmol dm-3, 4.244 mmol dm-3, 6.203 mmol dm-3, 8.013 mmol dm-3 i 9.949 mmol dm-3). The experiment was carried out at a constant temperature of 308 K, stirring speed of 200 rpm, and a particle size of < 500 μm for 96 h. The initial and equilibrium concentrations of copper ions in the copper(II) chloride solution, c0 and ce, were measured by measuring on a UV/VIS spectrophotometer at a wavelength of 815 nm. Based on the results obtained, it can be concluded that the amount of copper ions adsorbed (qe) changes slightly with the increase of initial concentration of copper ions in solution (c0), reaching its maximum value at an initial concentration of 8.013 mmol dm-3 with the value of qe = 0.495 mmol g-1 for the conditions under which the experiment was conducted. The copper ions adsorption efficiency reaches its maximum value for the lowest selected initial concentration of 2.664 mmol dm-3 with the value of 57.375% and then decreases with the increase of initial concentration of copper ions in solution. The best agreement of the experimental data with the isotherm models is shown by the Langmuir adsorption model.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:766811
Study programmeTitle: Chemical Technology; specializations in: Materials, Environmental Protection, Mediteranean Cultures, Materials and Environmental protection
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 conditionsEmbargoed access
Embargo expiration date: 2024-11-16
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Created on2022-11-16 08:45:01