Effect of calcination temperature on structural properties and photocatalytic activity of Mn-C-codoped TiO2

Mn-C-codoped TiO2 catalysts were synthesized by modified sol-gel method based on the self-assembly technique using polyoxyethylenesorbitan monooleate (Tween 80) as template and carbon precursor and the effect of calcination temperature on their structural properties and photocatalytic activity were investigated. The XRD results showed undoped and Mn-C-codoped TiO2 calcined at 400 oC only include anatase phase and the rutile phase appears when the calcination temperature reached to 600 oC. UV-vis absorption spectroscopy demonstrates that the absorption spectra are strongly modified by the calci...