Table 4: Summary of the Physical and Photocatalytic Properties for all the prepared Photocatalysts.

Photocatalysts Film thickness Surface area Concentration toluene Amount of toluene removed Percentage of toluene remove m2/g ppm μmol/hr % HPC 80 K with alpha terpineol 2.06 78.92 0.99 0.48 35.46 HPC 370 K with alpha terpineol 2.56 80.23 0.98 0.52 38.84 PEI 600 with alpha terpineol 3.45 85.78 0.98 0.61 45.97 PEI 600 without alpha terpineol 2.96 82.12 1.00 0.57 42.22 PEI 1800 with alpha terpineol 3.95 86.90 0.99 0.77 57.10 PEI 1800 without alpha terpineol 3.25 81.09 1.00 0.58 43.10