A novel photocatalytic reactor for the extended reuse of W–TiO2 in the degradation of sulfamethazine

A light–heat synergism in the sub-bandgap photocatalytic response of pristine TiO2: a study of in situ diffusion reflectance and conductance

“…9,10 Moreover, artificial dopants can also lead to a decrease in the thermal stability and durability of TiO 2 materials. 11 For undoped pristine TiO 2 materials, it has been found that they can respond to light with a photon energy lower than the band gap energy (E g ), i.e., the sub-bandgap (SBG) light response, although the efficiency is much lower than that of the superbandgap response. For example, it has been reported that photoelectrochemical (PEC) water oxidations can occur over pristine rutile TiO 2 anodes and SrTiO 3 under SBG light illuminations; 12,13 we recently saw that SBG light illumination can result in a relatively high PEC property over TiO 2 nanorod arrays.…”

Solar photo-oxidation of recalcitrant industrial wastewater: a review

“…Similar to the falling film reactor, W-titanium dioxide was coated on tilted aluminum plates under simulated solar light for improving the reusability of the catalyst without the need for a tedious collecting process (Fouad et al 2020). This design was further improved by including an additional chamber with a vertical coated plate to increase the irradiation time per water cycle showing high reusability of different photocatalysts (Samy et al 2020b(Samy et al , c, e, 2021Fouad et al 2021c).…”

Towards Scaling-up Photocatalytic Process for Multiphase Environmental Applications: A Review

“…This kind of setup does not require air/oxygen purging to maintain aerated conditions and can work using non-concentrated solar radiation [51]. For instance, Fouad et al reported the use of W-TiO2 coating on inclined stainless-steel plates illuminated by two metal halide lamps placed above the reactor (Figure 3d) [52]. By this configuration, complete degradation of 30 mg/L sulfamethazine was attained in 120 min and the reuse for five consecutive cycles showed that catalyst could retain 90% of its initial performance.…”