Studium sorpce barviva potravinářská žluť 3 na haloyzit

Jana KUBRYCHTOVÁ

Bachelor's thesis

Sorption study of food yellow 3 dye on halloysite

Abstract:

Tato práce popisuje odstraňování potravinářské žluti 3 z vodného roztoku pomocí nanotrubiček haloyzitu. Experimenty byly realizovány ve vsádkovém uspořádání. Byly provedeny kinetické a rovnovážné experimenty. Experimentální data byla popsána několika adsorpčními izotermami. Byl rovněž zkoumán vliv navážky sorbentu na sorpci barviva potravinářské žluti 3. Experimenty ukázaly, že adsorpce byla velmi rychlá a rovnováhy bylo dosaženo během jedné hodiny. Dubininova-Radushkevichova izoterma byla nejvhodnějším modelem pro sorpci. Modelování ukázalo, že sorpce probíhá na energeticky homogenním povrchu a v jedné vrstvě. Podle Langmuirova modelu dosahovala sorpční kapacita haloyzitu 12,1 mol/g (5,5 mg/g).

Abstract:

The present work describes the removal of food yellow 3 from aqueous solution using halloysite nanotubes. Experiments were performed in a batch desing. Kinetic and equilibrium experiments were done. The experimental data were described by several adsorption isotherms. The effect of sorbent loading on sorption of food yellow 3 was also investigated. Experiments have shown that adsorption was very rapid, and equilibrium was attained within one hour. The most suitable model for sorption was the Dubinin-Radushkevich isotherm. Modelling showed that sorption takes place on an energetically homogeneous surface and in a single layer. According to Langmuir isotherm, the sorption capacity of halloysite was 12.1 mol/g (5.5 mg/g).

Keywords

haloyzit, adsorpce, organická barviva, izotermy

Language used: Czech

Date on which the thesis was submitted / produced: 22. 7. 2022

Accessible from:: 31. 12. 2999

Thesis defence

• Supervisor: RNDr. Ľuboš Vrtoch, Ph.D.

JAN EVANGELISTA PURKYNĚ UNIVERSITY IN ÚSTÍ NAD LABEM

Faculty of Science

Bachelor programme / field:
Chemistry / Toxicology and Hazardous Waste Analysis