Figure 6

The Commission Internationale de L'Eclairage (CIE) chromaticity diagram of the carbon nitride products syntherized at different temperature for 2 h.

(1) 350°C, (2) 400°C, (3) 450°C, (4) 500°C, (5) 550°C, (6) 600°C, (7) 650°C.