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master's thesis
Ravnoteža sorpcije bakrovih iona na modificiranom geopolimeru
diplomski rad
2016. urn:nbn:hr:167:356736
Vučenović, Petra
University of Split
Faculty of Chemistry and Technology

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Vučenović, P. (2016). Ravnoteža sorpcije bakrovih iona na modificiranom geopolimeru : diplomski rad (Master's thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:356736

Vučenović, Petra. "Ravnoteža sorpcije bakrovih iona na modificiranom geopolimeru : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2016. https://urn.nsk.hr/urn:nbn:hr:167:356736

Vučenović, Petra. "Ravnoteža sorpcije bakrovih iona na modificiranom geopolimeru : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2016. https://urn.nsk.hr/urn:nbn:hr:167:356736

Vučenović, P. (2016). 'Ravnoteža sorpcije bakrovih iona na modificiranom geopolimeru : diplomski rad', Master's thesis, University of Split, Faculty of Chemistry and Technology, accessed 20 November 2024, https://urn.nsk.hr/urn:nbn:hr:167:356736

Vučenović P. Ravnoteža sorpcije bakrovih iona na modificiranom geopolimeru : diplomski rad [Master's thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2016 [cited 2024 November 20] Available at: https://urn.nsk.hr/urn:nbn:hr:167:356736

P. Vučenović, "Ravnoteža sorpcije bakrovih iona na modificiranom geopolimeru : diplomski rad", Master's thesis, University of Split, Faculty of Chemistry and Technology, Split, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:167:356736

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Metadata
TitleRavnoteža sorpcije bakrovih iona na modificiranom geopolimeru : diplomski rad
Title (english)Equilibrium sorption copper ions on modified geopolymer : diploma thesis
AuthorPetra Vučenović
MentorMario Nikola Mužek (mentor)
Committee memberSandra Svilović (predsjednik povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
Split
Defense date and country2016-07-13, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
U ovom diplomskom radu je proučavana sorpcija bakrovih iona na modificiranom geopolimeru u ovisnosti o različitim početnim koncentracijama otopina bakrovih iona (3,458 mmol dm-3, 8,034 mmol dm-3, 13,627 mmol dm-3, 18,034 mmol dm-3, 23,881 mmol dm-3 i 29,983 mmol dm-3) pri stalnoj temperaturi od 300 K, brzini miješanja od 150 okr min-1, u trajanju od 48 h. Korištene su čestice modificiranog geopolimera, sintetiziranog iz letećeg pepela klase F, promjera d < 90 µm. Dobiveni rezultati ukazuju na porast ravnotežne količine sorbiranih bakrovih iona na modificiranom geopolimeru (qe) s porastom ravnotežne koncentracije bakrovih iona u otopini (ce) do odreñene vrijednosti koja predstavlja maksimalni eksperimentalni kapacitet sorpcije bakrovih iona na modificiranom geopolimeru pri zadanim uvjetima (300 K, 150 okr min-1, 48 h) i ona iznosi qmax = 1,186 mmol g-1. Dobiveni eksperimentalni podatci su testirani Langmuirovom, Hillovom, Bauduovom i Fritz-Schlünderovom adsorpcijskom izotermom. Iako sve odabrane izoterme pokazuju dobro slaganje, ipak Langmuirova adsorpcijska izoterma pokazuje najbolje slaganje s eksperimentalnim podatcima što upućuje na zaključak kako se radi o monomolekulskoj sorpciji bakrovih iona iz vodene otopine bakrova(II) nitrata trihidrata na aktivno mjesto homogene površine sorbensa koje može primiti samo jedan atom ili molekulu i ima jednak afinitet prema adsorbatu.
Abstract (english)
In this diploma thesis the sporption of copper ions on modified geopolymer depending on various initial concentrations of copper ions solutions (3,458 mmol dm-3, 8,034 mmol dm-3, 13,627 mmol dm-3, 18,034 mmol dm-3, 23,881 mmol dm-3 i 29,983 mmol dm-3) at a constant temperature of 300 K, a stirring speed of 150 rpm, in a period of 48 h was investigated. Particles of modified geopolymer, synthesized from fly ash Class F, with a diameter d < 90 µm were used. The results indicated an increase in the equilibrium amount of copper ions sorbed on geopolymers (qe) with the increase of equilibrium concentration of copper ions in the solution (ce) to a certain value, which represents the maximum experimental sorption capacity of copper ions on the modified geopolymer in given conditions (300 K, 150 rpm, 48 h) and is qmax = 1,186 mmol g-1. The experimental data obtained are tested using Langmuir, Hill, Baudum and Fritz-Schlünder adsorption isotherms. Although all of the selected isotherms show good agreement, however, Langmuir adsorption isotherm shows the best agreement with the experimental data suggesting that this is a monolayer sorption of copper ions from an aqueous solution of copper(II) nitrate trihydrate on the active site of homogeneous surface of sorbent that can accommodate only one atom or molecule and has the same affinity for the adsorbate..
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:356736
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
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Created on2016-09-26 11:24:18