Modeli izoterme sorpcije malahit zelene na kori limuna

undergraduate thesis

• Author: Jagor Čop
• Mentor: Mirela Rožić (mentor)
• Committee member: Nina Knešaurek (član povjerenstva)
• Committee member: Miroslav Gojo (član povjerenstva)
• Committee member: Željka Barbarić - Mikočević (član povjerenstva)
• Granter: University of Zagreb; Faculty of Graphic Arts; Zagreb
• Defense date and country: 2012-1-31, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Graphic Technology

Abstract

Ispitivana je sorpcija kationskog bojila malahit zelene iz vodenih otopina na

biosorbens koru limuna. Mijenjana je masa sorbensa kako bi se ispitao njezin utjecaj

na kapacitet sorpcije. Određene su ravnotežne izoterme sorpcije a eksperimentalni

podaci su analizirani uporabom Langmuirove, Freundlichove, Tempkinove i Dubinin-

Radushkevichove jednadžbe. Regresijski korelacijski koeficijenti R2 pokazuju da u

usporedbi s ostalim modelima, Langmuirov model najbolje opisuje sorpciju bojila. Na

osnovi R2 vrijednosti, red najboljeg slaganja linearnih izotermi s eksperimentalnim

podacima je Langmuir > Freundlich > Tempkin > Dubinin-Radushkevich model.

Abstract (english)

The subject of analysis was the sorption of malachite green, a cationic dye,

from aqueous solutions onto lemon peel. The mass of the sorbent was varied to check

its effect on the sorption capacity. Equilibrium sorption isotherms were determined

and experimental data analysed by means of Langmuir, Freundlich, Tempkin and

Dubinin-Radushkevich equations. The regression correlation coefficients R2 indicate

that the Langmuir model is superior to the other models in representing the sorption of

the dye. On the basis of R2 value, the best-fit line of the linear isotherms and the

experimental data was the Langmuir > Freundlich > Tempkin > Dubinin-

Radushkevich model.

• Keywords: sorpcija; malahit zeleno; limun; izoterma; Langmuir; Freundlich; Tempkin; Dubinin-Radushkevich
• Keywords (english): sorption; malachite green; lemon; isotherm; Langmuir; Freundlich; Tempkin; Dubinin-Radushkevich
• Language: croatian
• URN:NBN: urn:nbn:hr:216:312137
• Study programme: Title: 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 resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2024-04-16 19:22:59