Comparison of photocatalytic space-time yields of 12 reactor designs for wastewater treatment

A Facile Method for the Synthesis of a MoS2/g‐C3N4 Photocatalyst

“…The optimized composite MoS 2 /g-C 3 N 4 exhibited a photochemical space-time yield (PSTY) as high as 8.3 10 -3 d -1 kW -1 , which was two orders of magnitude greater than the values calculated from the results of previous reports [18,19]. PSTY previously served as a new benchmark measure to compare energy efficiency of photochemical systems [21]. The effect of initial pH, catalyst loading, and H 2 O 2 /RhB molar ratio on the catalyst activity was investigated.…”

“…Accounting for the lamp power and the treated solution volume, a new benchmark could be used to compare the photocatalytic activity of different reactor and catalyst combinations. This benchmark measure is the PSTY, which can be calculated by the following equation [21]:…”

Mixing regime simulation and cellulose particle tracing in a stacked frame photocatalytic reactor

“…In addition to the conventional reactor design parameters such as reactor geometry, mixer configuration, mode of operation (continuous or batch), separation efficiency, residence time, reaction selectivity, materials of construction and cost, the following parameters with respect to illumination needs to be considered while designing a photocatalytic reactor [5] shown in Figure 1. As previously reported in the literature, photocatalytic reactor designs can potentially fulfil the following objectives: [6][7][8] (i) Improve the catalyst to reactant ratio and residence time, Recently, however, 12 different photocatalytic reactors for wastewater treatment were compared using a benchmark ratio proposed as the photocatalytic space time yield (PSTY) [6]. According to Leblebici et al PSTY is defined as "the volume of water treated for each kW lamp power per volume of reactor per unit of time" [6].…”

“…As previously reported in the literature, photocatalytic reactor designs can potentially fulfil the following objectives: [6][7][8] (i) Improve the catalyst to reactant ratio and residence time, Recently, however, 12 different photocatalytic reactors for wastewater treatment were compared using a benchmark ratio proposed as the photocatalytic space time yield (PSTY) [6]. According to Leblebici et al PSTY is defined as "the volume of water treated for each kW lamp power per volume of reactor per unit of time" [6].…”

Visible‐light‐driven photocatalytic degradation of fenpyroximate in rotating packed bed reactor using Fe3O4@PbS@Ni2P magnetic nanocomposite photocatalyst: Response surface modelling and optimization

“…Amongst them, photocatalytic degradation based on semiconductors with a significant capability for the generation of highly reactive and nonselective hydroxyl radicals is a low‐cost, highly efficient and sustainable treatment technique . In spite of the broad application of photocatalytic degradation as an efficient method for the degradation of various pollutants on a laboratory scale, few researches have been devoted to extending its usage in large‐scale reactors due to some limitations such as poor light distribution inside the reactor and low photocatalyst surface area per unit volume of reactor . These limitations cause reduction in mass transfer rate and, consequently, low degradation efficiency, which can be reduced or even removed by the replacement of a conventional reactor with a novel reactor based on rotating packed beds that operate under high‐gravity environment (>100 g ).…”