Band-Gap Engineering of NaNbO<sub>3</sub> for Photocatalytic H<sub>2</sub> Evolution with Visible Light

<table>The schematic band structures of NaNbO<sub>3</sub> and La, Co codoped NaNbO<sub>3</sub>.</table>

International Journal of Photoenergy

Figure 6: Band-Gap Engineering of NaNbO<sub>3</sub> for Photocatalytic H<sub>2</sub> Evolution with Visible Light 