Using titanium nanotubes as photocatalysts in the photodegradation process of crystal violet dye
DOI:
https://doi.org/10.54153/sjpas.2025.v7i2.1025Keywords:
Titanium dioxide, photodegradation, crystal violet, photocatalysis, reaction kineticsAbstract
In this study, titanium dioxide nanotubes were prepared using the electrochemical method (anodization), using an electrochemical cell in which both electrodes (cathode and anode) were made of titanium plates and an electrolyte solution consisting of (ethylene glycol + ammonium fluoride + ionic water) and using a voltage of 65 V (( The nanostructure of the prepared titanium tubes was determined using a scanning electron microscope (SEM). The average diameter of the prepared titanium tubes was 88.25 nanometers. The prepared nanotubes were also applied in the process of photocdegradation of crystal violet dye, where the factors affecting the photodegradation process were studied, such as the intensity of the light source, pH, and the initial concentration of organic dyes. The titanium dioxide tubes used showed a great ability to remove dyes from water, as the percentage of photodegradation of the dye reached Crystal violet 78.9%. The study of the effect of the acid function showed that the percentage of photodegradation increases with an increase in the acid function. The results of the study of the difference in the initial concentration of the dye on the percentage of photodegradation showed that the percentage of photodegradation decreases with the increase of the initial concentration of the dye. It is clear from the study that the kinetics of photodegradation For crystal violet dye using titanium dioxide tubes as a catalyst, the pseudo-first order equation follows.
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