Figure 1

Figure 2 SEM images of (a)TiO2 and (b) Zeolite Y-Supported TiO2 (1.0 cm = 0.83 m).

Figure 3 Elemental Analysis of (a) Na-Y Zeolite and (b) Zeolite Y-Supported TiO2

Figure 4 Chlorazol E Dye Degradation Profiles at pH 2, 6, and 11.

Figure 5 Chlorazol E Dye Degradation Profiles at Concentrations from 6 to 30 ppm.

Figure 6 Chlorazol E Dye Degradation Profiles from 30 to 70 oC.

Figure 7 Semilog Plot of Chlorazol E Dye Concentration (ppm) with Time (minutes).

pH

Before Treatment

After Treatment

2

16 mg/l

20 mg/l

6

18.5 mg/l

10 mg/l

11

13.8mg/l

10.8 mg/l

Table 1 COD Measurements for Dye Solutions at pH 2,6, and 11 Before and After Chlorazol E Degradation.

pH

Before Degradation

After Degradation

 

 

 

2

52.36mS/cm

3309mS/cm

 

 

 

6

16.31mS/cm

288mS/cm

 

 

 

11

4427mS/cm

170mS/cm

 

 

 

Table 2 Conductivity Measurement of Dye Solutions at pH 2, 6, 11 Before and After Chlorazol E Degradation.

Initial concentration

k (min –1)

R 2

10 ppm

0.0023

0.8572

16 ppm

0.0018

0.9789

30 ppm

0.001

0.9592

Initial pH

k (min –1)

r2

pH 6

0.0014

0.9428

pH 11

0.0013

0.9947

Table 3Kinetics of Chlorazol E Photodegradation at Different Concentrations and pH.