Microfluidic Photocatalytic Device Utilizing Anodized Titania Nanotube Arrays: Application and Simulation Validation
A computational model of the microfluidic format was developed to evaluate the effect of diffusion coefficient and rate constant on the photocatalytic performance. The improved performance of the TNA photocatalyst over the nanoparticle film can be attributed to higher generation of, and improved diffusion of oxidizing species. The model and microfluidic platform developed can easily be modified to suit other channel geometries and pollutants. A comparison of similar microfluidic photocatalytic platforms was made on the basis of dimensionless Peclet number. The system described in this study demonstrates high advective flow compared to otherwise similar microfluidic photocatalytic systems.