A critical innovation of photocatalytic degradation for toxic chemicals and pathogens in air

Current perspective in metal oxide based photocatalysts for virus disinfection: A review

“…4 , Fig. 5 a) ( Truong et al, 2021 ). Catalyst generates •O 2 ‾, •OOH, and •OH active ROS in the presence of solar light and actively degrade the components of viruses present on its surface ( Truong et al, 2021 ; Bayarri et al, 2021 ).…”

“…In principle, disturbing the outer cell membrane, destroying functional as well as structural proteins, and genetic RNA by the generation of reactive oxidation species, inhibited the growth of virus and may lead to cell lysis. Potential photocatalytic materials as antiviral agents are the best alternative solution to battle the pandemic like COVID-19 ( Nasir et al, 2021 ; Truong et al, 2021 ). Among photoactive transition metal oxides, non-toxic, economical, and profusely available TiO 2 photocatalyst has exposed the high potential for deactivation of phage MS2, bacteriophage, phage f2, HIV, norovirus, etc.…”

“…Among AOPs, photocatalytic disinfection is the most efficient technique for wastewater treatment without forming any harmful by-products ( Fig. 3 a) ( Truong et al, 2021 ). As solar light is a freely abundant, and obtainable source of energy, an effectual photocatalytic material should be capacitated with harnessing an extensive range of the solar spectrum ranging from ultra-violet to near-infrared light ( Truong et al, 2021 ).…”

“…3 a) ( Truong et al, 2021 ). As solar light is a freely abundant, and obtainable source of energy, an effectual photocatalytic material should be capacitated with harnessing an extensive range of the solar spectrum ranging from ultra-violet to near-infrared light ( Truong et al, 2021 ). The utilization of photocatalysis with bare or promoted photoactive materials has been suggested as an operative tool for surface self-sterilization under mild conditions.…”

“…3 (a) Schematic diagram of radical generation mechanisms for the photocatalytic degradation of harmful pathogens, Adapted with permission from Elsevier (license No. 5121780790083) ( Truong et al, 2021 ); (b) Mechanism of inactivating virus process through photocatalysis, Adapted with permission from Elsevier, (license No. 5121780134344) ( Nasir et al, 2021 ).…”