Photoelectrocatalytic activity of spray deposited ZnO thin films againstE. coliDavis

Synergetic photoelectrocatalytic reactors for environmental remediation: A review

“…Derived from experimental devices applied in these two individual processes, the configuration of an electrolytic tank with an external light source has been constructed in photoelectrocatalytic experiments for basic research of this field [73,[75][76][77][78][79][80]. The general outline of this kind of reactor is depicted in Fig.…”

“…The general outline of this kind of reactor is depicted in Fig. 8 immobilized on transparent conducting substrate upon UV illumination [76]. When positive bias is applied, it not only enhances the production of reactive oxygen species (ROS), but it also induces the electrostatic attraction between the viral capsid and the photoelectrode [81].…”

Photo-assisted electrochemical advanced oxidation processes for the disinfection of aqueous solutions: A review

“…In addition to TiO 2 , some other wide band gap semiconductor materials have been explored for water disinfection processes. In this regard, Zinc oxide (ZnO) has attracted much attention since it is a widely available n-type semiconductor material (band gap>3 eV), that is characterized by its low cost, non-toxicity and high photo-activity ( Lam et al., 2020 ; Lee et al., 2017 ; Sapkal et al., 2012 ). Lam et al.…”

“…The novel arrangement of materials in the photo-anode structure produced a potential barrier that was assumed to prevent charge carrier recombination which resulted not only in outstanding charge separation and extended visible light absorption, but also in an excellent activity towards bacterial inactivation ( Gupta et al., 2019 ). • OH, h + and superoxide radicals were identified as the species responsible for inactivation of E. coli by means of an oxidative stress mechanism that lead to membrane damage ; achieving 95% inactivation when compared to UV illuminated samples that reached 20% ( Sapkal et al., 2012 ).…”

3D‐Printed TiO2 Electrode as a Viable Alternative for Photoelectrocatalytic Purification of Water

“…[10,11] Among AOPs, photoelectrocatalysis (PEC) is an attractive technology that can not only remove persistent organic compounds in water, [12] but also work as a disinfection process. [13,14] The working principle of PEC is the production of hydroxyl radical (OH * ) at the semiconductor electrode surface after this is irradiated at wavelengths with sufficient energy (3.2 eV for TiO 2 anatase form) to promote the electron from the valence band to the conduction band creating an oxidizing site for water conversion into OH * . [15] The PEC process typically offers higher treatment performance when compared to photocatalysis (PC).…”