Photocatalytic Degradation of Alizarin Cyanine Green G, Reactive Red 195 and Reactive Black 5 Using UV/TiO₂ Process

Abstract:

The photocatalytic degradation (PCD) of three commercially textile dyes, namely Alizarin Cyanine Green G (ACG), Reactive Red 195 (RR195) and Reactive Black 5 (RB5) has been investigated using TiO₂ (Degussa P25) photocatalyst in aqueous solution under UV light. Experiments were conducted to optimize various parameters viz. amount of catalyst, initial concentration of dye and solution pH. Degradation of all the dyes was examined by using UV spectrophotometer. Photocatalytic degradation increased with increasing TiO₂ loading (in the range 0.51.5 g/L) and decreasing with increasing dye concentration (in the range 20-100 mg/L) and solution pH (in the range 4-10). Result demonstrated that the reactivity of the three dyes for TiO₂ catalyzed PCD was as follows: Reactive Red 195 > Reactive Black 5 > Alizarin cyanine Green G, respectively.

• Periodical: Materials Science Forum (Volume 764)
• Pages: 284-292
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.764.284
• Online since: July 2013
• Authors: Jaimin Vyas, Manish Mishra, Vimal Gandhi
• Keywords: Alizarin Cyanine Green G, Photocatalytic Degradation, Reactive Black 5, Reactive Red 195, TiO₂

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