Factors Determining the Removal Efficiency of Procion MX in Waters Using Titanate Nanotubes Catalyzed by UV Irradiation

The treatment of wastewater from the textile industry containing organic dyes faces many challenges since these compounds resist biodegradation process in conventional units. Among physicochemical processes, photocatalysis is considered a facile, cheap, and environmental-friendly technology for treating persistent pollutants waters at low concentrations. This study investigated several factors determining photocatalytic activity titanate nanotubes (TNTs) to remove Procion MX 032 (PMX), an azo dye, waters. Degradation PMX by oxidation room temperature (30°C) was set up with UV irradiation presence different types photocatalyst such as ST-01 (100% anatase), industrial TiO2, TNTs calcined 120°C 500°C. Effect reaction time, catalyst amount, pH, light wavelength intensity, oxidants investigated. Consequently, 500°C provided highest removal efficiency. TNT affected pH variation, getting 8, inhibited H2O2 O2. Particularly, degradation using optimized under UV-A intensity 100 W/m2. dye degraded more than 95% concentration 75 mg/L 8.0 after 90 min. results suggest that can be simple but efficient method potentially applied wastewaters dyes.