Urea-driven g-C3N4 nanostructures for highly efficient photoreduction of Cr(vi) under visible LED light: effects of calcination temperature

The effectiveness of g-C 3 N 4 samples, obtained at different calcination temperatures, was examined in the photoreduction of Cr( vi ). Band positions and the Cr( vi ) photoreduction mechanism of g-C 3 N 4 are also reported.