Behavioral analysis of simultaneous photo-electro-catalytic degradation of antibiotic resistantE. coliand antibioticviaZnO/CuI: a kinetic and mechanistic study

Abstract

Photoelectrocatalytic mechanism of ZnO/CuI for antibiotic resistant bacterial disinfection.

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

“…In these processes, the potential gradient forces the electrons towards the cathode, thus promoting the photo-generated h + reaction at the anode with water to yield • OH radicals (Eq. (6) – (8)) ( Garcia-Segura and Brillas, 2017 ; Gupta et al., 2019 ; He et al., 2020 ; Venieri et al., 2013 ). …”

“…The corresponding experiments reached complete E. coli inactivation after 60 min of treatment by the combined effects of h + injection and • OH production ( Lam et al., 2020 ). Gupta et al. (2019) on the other hand, reported the disinfection performance of a ZnO/CuI nanorod array that was grown on a fluorine-doped tin oxide (FTO) substrate.…”

“…(2019) on the other hand, reported the disinfection performance of a ZnO/CuI nanorod array that was grown on a fluorine-doped tin oxide (FTO) substrate. 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 ).…”

Bacterial Lysis via Photocatalysis ‐ A Critical Mechanistic Review

“…Therefore, ICPMS of the samples taken at different time intervals can show the real picture of bacterial cell disinfection. Figure shows the ICPMS analysis for the centrifuged bacterial samples to separate the bacteria from the suspension at the end of the reaction i. e. 1 h through an experimental study for ZnO, CuI and ZnO/CuI immobilized materials for E. coli disinfection . Apart from our ZnO/CuI composites there are various reports suggesting that K + ion leaching is one of the important mechanisms to show the compromise the bacterial cell membrane .…”

Photocatalytic performance of Ti/MMO/ZnO at degradation of levofloxacin: Effect of pH and chloride anions

“…Among these strategies, the doping of ZnO with other semiconductor oxides or metals and the immobilization of this oxide on metallic mixture oxides (MMO) have achieved promising results [21][22][23]. Thus, the Ti/MMO/ZnO electrode could be a promising photoanode for the treatment of recalcitrant organic compounds according to its high stability, photoactivity and easy sinthesis when compared to some photoanodes previously reported in the literature [24][25][26].…”