Photodegradation is frequently used in the treatment of water and waste water. Photodegradation looks to give the best chances for overall treatment of dyestuff effulents, compared to other treatments such as froth flotation coagulation and so on. Solar photo catalytic oxidation, which uses semiconductors such as TiO2, ZnO, and other materials, has made a name for itself in the field of waste water treatment, particularly for the removal of organics and dyes. TiO2 is a promising material among the numerous semiconductors. Solar energy is used to make the process environmentally friendly and cost-effective. Other sources of energy are required in areas when solar radiation is insufficient. The present study used TiO2 as a photocatalyst to photodegrade aniline blue and crystal violet dyes from aqueous solutions of their binary combination. The best values of experimental parameters required for maximal degradation were discovered by performing photodegradation under various experimental circumstances. The research was carried out using a range of energy sources, such as solar and microwave radiation. Degradation investigations at temperatures of 250°C, 350°C, and 450°C were used to calculate the rate constant and activation parameters. Both energy sources deteriorate in the same way, with the exception of the time and dose of photo catalyst.
Although microwave radiation takes shorter time than solar radiation, it need a larger dose of photo catalyst. These discoveries will be useful in the development of industrial effluent treatment plants.Author (S) Details
S. Shanthi
Department of Chemistry, The Standard Fireworks Rajaratnam College for Women, Sivakasi, Tamil Nadu, India.
K. Sathya Priya
Department of Chemistry, The Standard Fireworks Rajaratnam College for Women, Sivakasi, Tamil Nadu, India.
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