Photocatalytic degradation of dimethyl phthalate in aqueous TiO2 suspension: a modified Langmuir–Hinshelwood model

A modified Langmuir–Hinshelwood model based on intrinsic reactions was proposed. Similar to the Langmuir–Hinshelwood model, the modified model predicts that both the reciprocal of reaction rate constant 1/k r and the adsorption rate constant K s are linearly proportional to the reciprocal of the square root of light intensity 1/I 1/2 . The validity of the modified kinetic model was verified with the experimental data of dimethyl phthalate (DMP) degradation.