Figure 7:
Effect of added NaNO
3
on DNB degradation, C
0
=50 mg DNB/L.
1.0 mg/mL TiO
2
;
200 μL of 4.4 M NaNO
3
and 1.0 mg/mL TiO
2
;
200 μL of 4.4 M NaNO
3
.
1.0 mg/mL TiO2; 
200 μL of 4.4 M NaNO3 and 1.0 mg/mL TiO2; 
200 μL of 4.4 M NaNO3. 1.0 mg/mL TiO2; 200 μL of 4.4 M NaNO3 and 1.0 mg/mL TiO2; 200 μL of 4.4 M NaNO3.