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Updated: Jun 2, 2026
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The Effect of Interfacial Chemical Bonding in TiO2-SiO2 Composites on Their Photocatalytic NOx Abatement Performance
Published on: July 4, 2017
Evaluation of model parameters for simulating TiO(2) coated UV reactors
J E Duran1, F Taghipour, M Mohseni
1Department of Chemical and Biological Engineering, The University of British Columbia, Vancouver, Canada. eduran@chbe.ubc.ca
Summary
A computational fluid dynamics (CFD) model was developed to simulate titanium dioxide (TiO2) coated reactors for water purification. The model integrates hydrodynamics, mass transfer, UV radiation, and chemical reactions, showing promise for optimizing photocatalytic processes.
Area of Science:
- Environmental Engineering
- Chemical Engineering
- Water Treatment Technologies
Background:
- Photocatalytic reactors using titanium dioxide (TiO2) are crucial for advanced drinking water treatment.
- Accurate simulation of these reactors requires integrating complex physicochemical phenomena.
- Existing models may not fully capture the interplay of hydrodynamics, mass transfer, radiation, and surface reactions.
Purpose of the Study:
- To develop and evaluate a computational fluid dynamics (CFD) based model for simulating TiO2 coated photocatalytic reactors.
- To integrate key aspects including hydrodynamics, mass transfer, UV-radiation field, and surface chemical reactions into a unified simulation framework.
- To experimentally validate the performance of the integrated CFD model for drinking water treatment applications.
Main Methods:
- Development of individual models for hydrodynamics, mass transfer, UV-radiation, and surface chemical kinetics.
- Experimental and analytical examination of each physicochemical phenomenon model.
- Integration of validated sub-models into a comprehensive CFD-based simulation of the photocatalytic reactor.
- Experimental evaluation of the integrated CFD model's predictive capabilities.
Main Results:
- A functional CFD-based model simulating TiO2 coated photocatalytic reactors was successfully developed.
- The model effectively integrates hydrodynamics, mass transfer, UV-radiation, and surface reaction kinetics.
- Experimental validation confirmed the model's ability to represent photocatalytic reactor performance.
Conclusions:
- The developed CFD model provides a valuable tool for simulating and optimizing TiO2 photocatalytic reactors in water treatment.
- Integration of multiple physicochemical phenomena is feasible and essential for accurate reactor simulation.
- The model shows potential for enhancing the design and efficiency of photocatalytic water purification systems.
