Fig. 3From: Synthesis of visible light active doped TiO2 for the degradation of organic pollutants—methylene blue and glyphosateSEM images of undoped and doped TiO2. a undoped TiO2. b 0.45% Mn-doped TiO2. c 0.45% Ce-doped TiO2. d 0.45% La-doped TiO2 Back to article page