IWA Publishing

Novel composite photocatalyst made of TiO2 nanoparticles

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A novel photocatalyst based on TiO2 nanoparticles was developed for application in fluidised bed photocatalytic reactors for water treatment. The mechanically robust photocatalyst consists of composite spheres made of TiO2 nanoparticles and TiO2 commercial powder. X-ray diffraction (XRD), scanning electron microscopy (SEM) and specific surface area analysis (BET) were used to characterise the catalyst. The photocatalytic activity was evaluated using model pesticide micro-pollutant. A complete model comprised of radiation, kinetic, and reactor bed models was also developed, allowing for detailed analysis of the photoreactor.

Keywords: fluidised bed photocatalytic reactor, modelling, organic pollutant, sol–gel method, TiO2 nanoparticles

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