Table 3: Surface area of TiO2 thin films after 10 numbers of coatings.

TiO2 thin film PhotocatalystsSurface area, m2/g

HPC 80 K with alpha-terpineol78.92
HPC 370 K with alpha-terpineol80.23
PEI 600 with alpha-terpineol85.78
PEI 600 without alpha-terpineol82.12
PEI 1800 with alpha-terpineol86.90
PEI 1800 without alpha-terpineol81.09