Publication detail

Effect of Ionic Environment on UVA-LED/TiO2 Photocatalysis of Azo Dye Solution

Authors: Smolný Marek | Cakl Jiří | Palarčík Jiří

Year: 2018

Type of publication: ostatní - článek ve sborníku

Name of source: 10th European meeting on Solar Chemistry and Photocatalysis: Environmental Applications "SPEA10"  : book of proceedings

Publisher name: Universidad de Almería

Place: Almeria

Page from-to: 266-268

Titles:

Language	Name	Abstract	Keywords
eng	Effect of Ionic Environment on UVA-LED/TiO2 Photocatalysis of Azo Dye Solution	The photocatalytic decolorization and degradation of an organic azo dye aqueous solution under UVA/TiO2 heterogeneous photocatalysis was studied using spectrophotometry, TOC, COD, and zeta-potential measurements. The COD, TOC and spectrophotometric data provided the description of the thermodynamics and kinetics of the dye degradation process, while electrokinetic measurements allowed assessment of the nature of internal interactions. The parameters investigated were: pH, initial azo dye concentration, catalyst loading and concentration of sodium ions. Both the pH and sodium content had a crucial effect on the value of zeta potential and consequently on the coagulation, adsorption and degradation processes.	Photocatalysis; UV-A LED; Azo dye; Zeta Potential

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