Magnetic Ag3PO4/CoFe2O4 Z-scheme heterojunction material for photocatalytic decomposition of ofloxacin

Poly Meta-Aminophenol (PmAP) as a Solid-State Electron Mediator in the Z-Scheme, Ag3PO4/CoFe2O4 Heterojunction: Mineralization of Highly Concentrated Bisphenol-A and Reactive Dyes Water Pollutants

“…CoFe 2 O 4 (CFO), being a magnetic iron-based semiconductor oxide with high chemical stability, low toxicity, and high coercivity, has garnered significant interest in the field of photocatalysis . Many review articles have been published focusing on its augmented activity in wastewater treatment and H 2 production from water. − The potential of CoFe 2 O 4 in H 2 evolution reactions via water splitting, superconductivity, photocatalysis, and lithium-ion batteries has been explored. , Use of the CoFe 2 O 4, neat or in association with a cocatalyst/noble metals for H 2 production has been reported by several workers. − In contrast, Ag 3 PO 4 is a superior visible light active catalyst that has 90% quantum efficiency in oxygen evolution reactions. − It has dozens of times more potential than the commercial TiO 2 and BiVO 4 catalysts in terms of dye degradation reactions. − The combination of both CFO and Ag 3 PO 4 showed exceptional photoactivity in dye removal applications but failed with highly concentrated dye solutions and recyclability points. − Many authors designed the Z-scheme catalyst based on Ag 3 PO 4 /CoFe 2 O 4 with and without a mediator or electron shuttle. − Herein for the first time, PmAP was used in this heterojunction as a mediator to yield a Z-scheme heterojunction with augmented activity for remediation of highly concentrated aquatic pollutants within minutes under visible light illumination. Establishing a dynamic equilibrium among the mediator’s electron-donating and electron-accepting capabilities is the difficult part of creating a solid-state electron mediator as it keeps the mediator mostly unaltered during the process. , An ongoing electron flow between the source and target photocatalysts is also dependent upon the photocatalyst mediator photocatalyst contact interface.…”

“… 28 − 30 The combination of both CFO and Ag 3 PO 4 showed exceptional photoactivity in dye removal applications but failed with highly concentrated dye solutions and recyclability points. 31 − 33 Many authors designed the Z-scheme catalyst based on Ag 3 PO 4 /CoFe 2 O 4 with and without a mediator or electron shuttle. 31 − 35 Herein for the first time, PmAP was used in this heterojunction as a mediator to yield a Z-scheme heterojunction with augmented activity for remediation of highly concentrated aquatic pollutants within minutes under visible light illumination.…”

“… 31 − 33 Many authors designed the Z-scheme catalyst based on Ag 3 PO 4 /CoFe 2 O 4 with and without a mediator or electron shuttle. 31 − 35 Herein for the first time, PmAP was used in this heterojunction as a mediator to yield a Z-scheme heterojunction with augmented activity for remediation of highly concentrated aquatic pollutants within minutes under visible light illumination. Establishing a dynamic equilibrium among the mediator’s electron-donating and electron-accepting capabilities is the difficult part of creating a solid-state electron mediator as it keeps the mediator mostly unaltered during the process.…”