Simultaneous Photocatalytic Reduction of Cr(VI) and Oxidation of Benzoic Acid in Aqueous N-F-Codoped TiO2 Suspensions: Optimization and Modeling Using the Response Surface Methodology
Figure 5
3D response surface plots for % Cr(VI) removal; (a) as a function of N-F- concentration and Cr (VI)/BA ratio; (b) as a function of pH and N-F- concentration.