The application of SR-doped TiO2 nanoparticles for the effective photocatalytic degradation of “brilliant green” dye

Abstract

Strontium doped TiO2 nanoparticles have been successfully synthesized by an ultrasonic-hydrothermal method and post calcination treatments. The synthesized catalyst has been characterized in details using X-ray diffraction (XRD), transmission electron microscopy (TEM), Brunauer Emmett-Teller (BET) surface area analyzer, thermosgravimetric analysis (TGA), Fourier transform infrared (FT-IR), XPS (X-ray photoelectron spectroscopy) and photoluminescence (PL) spectroscopy. Sr-doped TiO2 catalyst has been further investigated as an efficient photocatalyst for the degradation of a triaryl methane dye, Brilliant Green. Excellent degradation efficiency of 96% is achieved within 60 min of photocatalytic reaction using the synthesized nanoparticles. In conclusion, the doping TiO2 with strontium ions causes the inhibition of recombination of photogenerated charge carriers, leading to high quantum efficiency. © 2018 Nova Science Publishers, Inc.