An efficient P3TA/Fe doped TiO2 catalyst for photo-degradation of Brilliant green dye and inactivation of pathogens under visible light

Abstract

Brilliant green (BG) belongs to triarylmethane dyes which cause nausea, vomiting, abdominal pain, burning skin or eyes, irritation and diarrhoea. Advanced oxidation process (AOPs) is the ample to removal BG dye from its contamination using semiconductor. TiO2 has proved the benign photo-catalyst for UV light absorption. Doping or co-doping with metal increase the photocatalytic performance, so in this study, poly3-thenoic acid assisted P3TA/Fe doped TiO2 nano-hybrid was prepared via sol–gel approach to assist photocatalytic degradation of BG dye. Analytical instruments were employed in this study to characterize the prepared nano hybrid. BG dye is a model pollutant in this study to examine the photocatalytic performance of proposed P3TA/Fe doped TiO2 nano-hybrid under visible light irradiations and it degrade BG dye completely in 60 min under visible light illuminations. As a result, the results reveal that 0.20 g of P3TA/Fe-TiO2 at pH 10 is a good photo-catalyst for degrading 10 mg/L BG dye solution efficiently. In addition, antibacterial assay also determined over the pathogens of E.coli and S.aureus. This study helps in prepare more efficient photo-catalysts for the removal of dye pollutants from their contaminated water in a large-scale industry.

Keywords

• Poly-3-thenoic acid
• Fe doped TiO2
• Photocatalytic degradation
• Antibacterial activity