@article{lewandowski_ollis_2003, title={A Two-Site kinetic model simulating apparent deactivation during photocatalytic oxidation of aromatics on titanium dioxide (TiO2)}, volume={43}, ISSN={["0926-3373"]}, DOI={10.1016/S0926-3373(02)00310-7}, abstractNote={Continuous photocatalytic oxidation of aromatic contaminants at 10 ppm or above generally leads to apparent catalyst deactivation. This deactivation has been attributed to the accumulation of recalcitrant intermediate species on the catalyst surface. In the present study, two variations of a simple kinetic model for the transient photocatalytic oxidation of an aromatic contaminant are considered. Modeling results are compared to our experimental data for the gas-phase photocatalytic oxidation of benzene, toluene, and m-xylene. A kinetic model using a single type of adsorption site is unable to replicate the experimental results. A second model, using a Two-Site arrangement, was developed based upon studies addressing multi-site binding of alcohols and other oxygenated hydrocarbons. This Two-Site kinetic model was able to produce results consistent with experimental data.}, number={4}, journal={APPLIED CATALYSIS B-ENVIRONMENTAL}, author={Lewandowski, M and Ollis, DF}, year={2003}, month={Jul}, pages={309–327} }
 @article{lewandowski_ollis_2003, title={Extension of a Two-Site transient kinetic model of TiO2 deactivation during photocatalytic oxidation of aromatics: concentration variations and catalyst regeneration studies}, volume={45}, ISSN={["0926-3373"]}, DOI={10.1016/S0926-3373(03)00165-6}, abstractNote={In our previous studies, three variations of a kinetic model for the transient gas–solid photocatalytic oxidation of aromatic contaminants on titanium dioxide (TiO2) were developed and compared with experimental data. Two of the models, based upon a single type of catalyst site, were not capable of replicating transient experimental data from the photocatalytic oxidation of benzene, toluene, or m-xylene in air at a single feed concentration (50 mg/m3). The remaining kinetic model, the Two-Site model, presumed the presence of a more hydrophilic type of site and was capable of replicating the time-varying behavior seen with all three aromatic contaminants considered. In the present study, this Two-Site kinetic model is extended to separately consider the photocatalytic oxidation of gas-phase toluene at various feed concentrations (20–100 mg/m3) and the regeneration of used catalysts via flowing, humidified air and UV illumination. Our Two-Site model provides reasonable fits for experimental data collected during the photocatalytic oxidation of toluene at several concentration levels with no significant changes to the prior model. It is also capable of representing catalyst regeneration, although some significant differences between the model predictions and experimental results are noted.}, number={3}, journal={APPLIED CATALYSIS B-ENVIRONMENTAL}, author={Lewandowski, M and Ollis, DF}, year={2003}, month={Oct}, pages={223–238} }
 @article{lewandowski_ollis_2002, title={Effects of TiO2 pretreatments on the photocatalytic oxidation of gas-phase aromatic contaminants}, volume={5}, DOI={10.1515/jaots-2002-0105}, abstractNote={Abstract}, number={1}, journal={Journal of Advanced Oxidation Technologies}, author={Lewandowski, M. and Ollis, D. F.}, year={2002}, pages={33–40} }