Photocatalytic Degradation of Congo Red Using PbTiO3 Nanorods Synthesized via a Sonochemical Approach

Lead titania (PbTiO3) possessing nanorods morphology was synthesized through facile and straightforward sonochemical approach using titanium tetraisopropoxide and lead nitrate as a starting material followed by annealing at 700 degrees C for 2 h and was utilized as an efficient photocatalyst to examine the degradation of Congo red dye (CR) under visible light. The as-synthesized PbTiO3 nanorods were characterized by physical-chemical methods such as phase identification, morphology, Chemical composition, and elemental analysis. To study the effect of PbTiO3 nanorods on dye degradation, various experimental parameters such as photocatalyst dosage, pH, and initial dye concentration was optimized. About 92% dye was degraded at pH 6 in the existence of PbTiO3 nanorods under visible light. To know the mineralization of Congo red in the presence of sonochemically synthesized PbTiO3 nanorods, the total organic carbon (TOC) removal studies carried out and it shows about 46% Congo red can be totally abated in 150 min under visible light.