Open AccessA Comparative study between TiO2 and ZnO photocatalysis: Photocatalytic degradation of textile dye
Author(s) -
Meriem Kouhail,
Kaoutar Elberouhi,
Zakia Elahmadi,
A. Benayada,
Saïd Ghalem
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/827/1/012009
Subject(s) - photocatalysis , photodegradation , methyl orange , materials science , fourier transform infrared spectroscopy , scanning electron microscope , titanium dioxide , diffuse reflectance infrared fourier transform , nuclear chemistry , aqueous solution , photochemistry , zinc , chemical engineering , chemistry , catalysis , organic chemistry , composite material , metallurgy , engineering
The present study involves the photocatalytic degradation of three dyes: Reactive Bézactiv yellow (RBY); Direct Triamine yellow86 (DY86); and Methyl Orange (OM) with different structure and containing different substitute groups. The photocatalytic degradation has been investigated using two types of synthesis semiconductors namely titanium dioxide (TiO 2 ) and zinc oxide (ZnO), as photocatalyst, in aqueous solution under solar irradiation. The synthesized nanoparticles were characterized by: Fourier Transform Infrared (FTIR), X-ray diffraction (XRD), UV visible diffuse reflectance spectroscopy and scanning electron microscopy (SEM). The progress of photocatalytic degradation of the commercial dyes, has been observed by monitoring the change in substrate concentration of the compound employing High-Performance Liquid Chromatography (HPLC). The photodegradation rate was determined for each experiment and the highest values were observed for ZnO.