Fe2.5Co0.3Zn0.2O4/CuCr-LDH as a visible-light-responsive photocatalyst for the degradation of caffeine, bisphenol A, and simazine in pure water and real wastewater under photo-Fenton-like degradation process

Inactivation of harmful algal bloom by an environmentally friendly photocatalyst under photo-Fenton-like degradation process

“…The so-synthesized photocatalysts were then examined for the removal of Scenedesmus quadricauda algal cells by the photo-Fenton-like degradation process. Considering the results obtained in our previous work (Fazli et al, 2022), the Fe2.5Co0.3Zn0.2O4/CuCr-LDH composite is more active in the degradation of different industrial pollutants under a photo-Fenton-like process. Therefore, the Fe2.5Co0.3Zn0.2O4/CuCr-LDH composite was selected to evaluate its photocatalytic efficiency for removing the algal cells under the photo-Fenton-like process.…”

“…in the accumulation of nanoparticles, which declines the contribution of the composite surface on the Fenton-like or photo-Fenton-like reactions; moreover, 2) the high concentration of the composite avoids the penetration of visible light inside the solution (Fazli et al, 2022). The lower light contribution reduces the photocatalytic efficiency of the composite in the degradation process, which confirms the critical importance of applied visible light and composite in algal removal.…”

“…Fe3O4, Fe2.5Co0.3Zn0.2O4, Fe3O4/CuCr-LDH, and Fe2.5Co0.3Zn0.2O4/CuCr-LDH samples were used as they were prepared in our previous paper. Any further information about the synthesis and characterization of the samples was given in our previous paper (Fazli et al, 2021a(Fazli et al, , 2022.…”

“…However, to the best of our knowledge, there is no report on applying the photo-Fenton-like process in the presence of magnetically recoverable photocatalyst for the effective deactivation of algal cells such as Scenedesmus quadricauda. In our previous study (Fazli et al, 2021a(Fazli et al, , 2022, we studied the photo-Fentonlike degradation efficiency of different types of water contaminants in the presence of Fe3O4,Fe2.5Co0.3Zn0.2O4,Fe2.5Co0.3Zn0.2O4/CuCr-LDH composites. Moreover, from the previous studies, we knew that the materials containing Zn 2+ and Cr 3+ have an appropriate influence on the deactivation of microorganisms (Fan et al, 2018).…”

Zinc-chromium layered double hydroxides anchored on carbon nanotube and biochar for ultrasound-assisted photocatalysis of rifampicin

“…LDHs are widely used as catalysts in wastewater treatment owing to some characteristics including layered and porous structures, high specific surface area, and interlayer anion mobility. What’s more, LDHs are a type of outstanding and broadly used adsorbent in wastewater treatment that can be used to eliminate a variety of substances including nitrate, phosphate, heavy metals, etc [12] . However, bare LDHs typically own low charge carrier mobility, which resulted in rapid electron-hole recombination and low quantum yield under light irradiations.…”