Adsorption and Photocatalytic Kinetics of Visible-Light Response N-Doped TiO₂ Nanocatalyst for Indoor Acetaldehyde Removal under Dark and Light Conditions

Table 1

Kinetic models for the acetaldehyde photooxidation by N-TiO₂.

Type	Model	Light intensity	Rate constant	Adsorption equilibrium constant
				I	L–H monomolecular	—
II	L–H light intensity-monomolecular

: light intensity (mW/cm²); : rate constant (μmole/hr); : intrinsic rate constant (μmole/hr); : order constant; : adsorption equilibrium constant (1/ppmv); : acetaldehyde concentration (ppmv).