Comparison of reaction rate and adsorption constants of TiO₂ films for the degradation of heptane and acetone with initial concentrations of 5–40 ppm studied at an air flow rate of 0.5 L min⁻¹ and relative humidity 6% under UV-A light.

Pollutant	k r (ppm s−1)	K (ppm−1)	Ref.
Heptane	1.7	0.05	This study
Acetone	2.3	0.03	28