Preparation of nanostructured TiO2-based photocatalyst by controlling the calcining temperature and pH

Nanostructured TiO 2 has been synthesized using one-step sol–gel method and characterized by different characterization techniques (SEM, EDS, XRD, and UV–vis spectroscopy). The photocatalytic degradation of methylene blue (MB) and Congo red (CR) is studied with the synthesized TiO 2 . The photocatalytic degradation data has been validated using several kinetic models. The TiO 2 showed efficient photocatalytic degradation performance on MB and CR. In addition to this, the effect of pH on the photocatalytic degradation has been investigated. The TiO 2 showed enhanced photocatalytic performance in basic media than that in neutral or acidic ones.