prikaz prve stranice dokumenta Kinetika i mehanizam sorpcije metilenskog modrila na prirodnom zeolitu
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undergraduate thesis
Kinetika i mehanizam sorpcije metilenskog modrila na prirodnom zeolitu
Zagreb: University of Zagreb, Faculty of Graphic Arts, 2011. urn:nbn:hr:216:617521
Radić, Antonija
University of Zagreb
Faculty of Graphic Arts

Institutional repository: Faculty of Graphic Arts Repository

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Radić, A. (2011). Kinetika i mehanizam sorpcije metilenskog modrila na prirodnom zeolitu (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Graphic Arts. Retrieved from https://urn.nsk.hr/urn:nbn:hr:216:617521

Radić, Antonija. "Kinetika i mehanizam sorpcije metilenskog modrila na prirodnom zeolitu." Undergraduate thesis, University of Zagreb, Faculty of Graphic Arts, 2011. https://urn.nsk.hr/urn:nbn:hr:216:617521

Radić, Antonija. "Kinetika i mehanizam sorpcije metilenskog modrila na prirodnom zeolitu." Undergraduate thesis, University of Zagreb, Faculty of Graphic Arts, 2011. https://urn.nsk.hr/urn:nbn:hr:216:617521

Radić, A. (2011). 'Kinetika i mehanizam sorpcije metilenskog modrila na prirodnom zeolitu', Undergraduate thesis, University of Zagreb, Faculty of Graphic Arts, accessed 30 November 2024, https://urn.nsk.hr/urn:nbn:hr:216:617521

Radić A. Kinetika i mehanizam sorpcije metilenskog modrila na prirodnom zeolitu [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Graphic Arts; 2011 [cited 2024 November 30] Available at: https://urn.nsk.hr/urn:nbn:hr:216:617521

A. Radić, "Kinetika i mehanizam sorpcije metilenskog modrila na prirodnom zeolitu", Undergraduate thesis, University of Zagreb, Faculty of Graphic Arts, Zagreb, 2011. Available at: https://urn.nsk.hr/urn:nbn:hr:216:617521

Metadata
TitleKinetika i mehanizam sorpcije metilenskog modrila na prirodnom zeolitu
AuthorAntonija Radić
MentorMirela Rožić (mentor)
Committee memberNina Knešaurek (član povjerenstva)
Committee memberMiroslav Gojo (član povjerenstva)
Committee memberMirela Rožić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Graphic Arts
Zagreb
Defense date and country2011-7-12, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Graphic Technology
Abstract
Ispitivana je kinetika sorpcije kationskog bojila metilenskog modrila iz vodenih otopina na prirodni zeolitni tuf s masenim udjelom klinoptilolita 50-60% u ovisnosti o koncentraciji bojila. Za opisivanje eksperimentalnih rezultata ispitani su modeli: model difuzije kroz film, model difuzije kroz površinu zeolita, homogeni difuzijski model, model pseudo-prvog reda, model pseudo-drugog reda i Elovichov model. Najbolje slaganje s eksperimentalnim podacima daje model pseudo-drugog reda. U otopini najmanje koncentracije bojila- 21,1 mg dm-3, brzinu sorpcije kontrolira vanjska difuzija (difuzija kroz film i difuzija kroz površinu zeolita), a u otopinama većih koncentracija bojila, brzinu sorpcije kontrolira i difuzija unutar pora čestica zeolita. Ravnotežne mase sorbiranih molekula bojila najbolje odgovaraju Langmuirovoj izotermi što upućuje na to da se na površini čestica zeolita sorbira monosloj molekula metilenskog modrila.
Abstract (english)
The kinetics of adsorption of cationic methylene blue dye from aqueous solutions on natural zeolite tuff with clinoptilolite containing 50-60% depending on the concentration of dye was investigated. To describe the experimental results were tested: a model of diffusion through the film, diffusion through the surface and homogeneous diffusion model, the model pseudo-first order model of pseudo-second order and Elovichov model. The best agreement with experimental data shows the model of pseudo-second order. The dye solution concentration 21.1 mg dm-3 overall adsorption rate is controlled by external diffusion (diffusion through the film and diffusion through the surface of zeolite), and solutions with higher concentrations of speed controlled adsorption and diffusion within the pores of zeolite particles. By Experimental data of equilibrium mass adsorbed dyes best fit Langmuir isotherm, indicating that the surface of zeolite monolayers adsorbed methylene blue molecules.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:216:617521
Study programmeTitle: Printing technology, course Technical - technological
Course: Graphic technology
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka grafičke tehnologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka grafičke tehnologije)
Type of resourceText
File originBorn digital
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Created on2024-04-16 19:26:44