Photocatalytic degradation of model organic pollutants on an immobilized particulate TiO2 layer

Anodized titania nanotube array microfluidic device for photocatalytic application: Experiment and simulation

“…Titania nanotube arrays have been reported to have higher photocatalytic efficiency compared to P25 layers in spite of their lower surface area compared to the latter [47]. The TNA nanotubes provide an optimized geometry that has a shorter carrier-diffusion path in the tube walls and lower recombination rates of photogenerated electron-hole pairs in comparison with P25 layer.…”

Kinetic modeling of hydrogen generation over nano-Cu (s) /TiO 2 catalyst through photoreforming of alcohols

“…As reported by others [18], reaction r 2 is regulated by a secondorder kinetic law in which k r is the electron/hole recombination reaction constant.…”

“…The sole values found in the literature for these two parameters are related to bare TiO 2 -P25 [18,25,26], which could be adopted in the present modeling just as starting values for the optimization procedure. For the N parameter, that is the moles of active sites per unit mass of the catalyst, the value (3.98 × 10 −4 mol g −1 ) was calculated from hydroxyl group surface density reported by Mueller et al [23] for TiO 2 -P25 and adopted as starting datum.…”

Measurement of diffuse reflectance from combinatorial samples

“…Our initial purpose in constructing this device was to explore doped TiO 2 which is one of the best candidates for photocatalysis on safety and economic grounds [1], the most active field being the photo-degeneration of organic compounds [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] including organics, viruses, bacteria, fungi, algae, and cancer cells, which can be decomposed to less harmful species [2,11,[13][14][15]17]. TiO 2 is also able to form complex inorganic colourants (CIC) [18] that present structural and chemical stability toward dissolution after firing [19,20]; the rutile lattice offering considerable scope for colour variation by metal ion doping [21].…”