Alaa T. Hamzah
Department of Medical Laboratory Technique, The Islamic University, Diwaniya, Iraq
Corresponding author: alaa.talib0@gmail.com
Received: May 1, 2022/ Revised: May 19, 2022 / Accepted: June 2, 2022
Abstract
This research is including the efficiency of four methods of advanced oxidation processes and compares them for decolonizing the textile dye Azure A in an aqueous solution. These methods are TiO2 only, ultrasound with titanium dioxide (TiO2 +US) and titanium dioxide ultraviolet (TiO2 + UV), and titanium dioxide with ultraviolet with ultrasound (TiO2 +UV +US). The aim is to determine the best method of treatment for the mineralization of color. All the experiments have been done by using sonophotocatalytic experimental setup. The study includes the investigating effects of dye concentration, temperature, and pH. Complete degradation has been achieved in a somewhat short time of 60 min. The maximum removal of color was found in higher pH and temperature where at T=308K the removal percentage is 40%, 55%, 60%, and 99% and at pH=8 are 30%, 55.5%, 66%, and 98.5% by four methods consecution shown the removal rate that increases with decreases initial dye concentration, and also that the ratio of removal increases with the rise of temperature, which decreases activated energy of the reaction. As far as pH is concerned it appears that the ratio of removal decreased in an acidic medium. The decolonization reaction was found to follow first-order kinetics concerning the dye concentration.
Keywords TiO2, Thiazine dyes, Azure A, Oxidation processes, Decolonization
How to cite this article
Hamzah, A. T. (2022). Sonophotocatalytic treatment of thiazine (azure A) dye from wastewater using TiO2 film. Science Archives Vol. 3 (2), 98–103. http://dx.doi.org/10.47587/SA.2022.3203
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