Advanced strategies for promoting the photocatalytic performance of FeVO4 based photocatalysts: A review of recent progress

Development of ABO4‐type photoanodes for photoelectrochemical water splitting

“…Magnetic adsorption ensures that the photocatalyst can be easily separated from the reacted photocatalytic water/ wastewater, which makes FeVO 4 have excellent recycling value. 261 Although FeVO 4 exhibits many excellent photophysical and chemical properties, its lab-achieved photocurrent density (3.83 mA cm −2 ) is still far lower than its theoretical value (12.9 mA cm −2 ) due to poor bulk charge transport and surface catalysis. 266 Therefore, it is necessary to improve the charge transfer performance of FeVO 4 to enhance the PEC performance.…”

“…Among the four crystal forms (orthorhombic (I), orthorhombic (II), triclinic, and monoclinic), triclinic FeVO 4 is widely used in PEC reactions. 261 As shown in Figure 9A, the triclinic FeVO 4 is piled up by the threedimensional framework, which is formed by four twisted octahedral FeO 6 and two twisted bipyramidal FeO 5 connected with VO 4 tetrahedron. The interstitial space in this layered structure can be used as the active area for photocatalytic reactions.…”

“…Among the metal vanadate materials, FeVO 4 is one of the most environmentally friendly and cheapest photocatalysts. Among the four crystal forms (orthorhombic (I), orthorhombic (II), triclinic, and monoclinic), triclinic FeVO 4 is widely used in PEC reactions 261 . As shown in Figure 9A, the triclinic FeVO 4 is piled up by the three‐dimensional framework, which is formed by four twisted octahedral FeO 6 and two twisted bipyramidal FeO 5 connected with VO 4 tetrahedron.…”

“…In particular, in addition to the above microscopic properties, FeVO 4 has an advantage of being magnetic. Magnetic adsorption ensures that the photocatalyst can be easily separated from the reacted photocatalytic water/wastewater, which makes FeVO 4 have excellent recycling value 261 . Although FeVO 4 exhibits many excellent photophysical and chemical properties, its lab‐achieved photocurrent density (3.83 mA cm −2 ) is still far lower than its theoretical value (12.9 mA cm −2 ) due to poor bulk charge transport and surface catalysis 266 .…”

Magnetically recyclable nanophotocatalysts in photocatalysis-involving processes for organic pollutant removal from wastewater: current status and perspectives

“…177 Second, ozone reacts with water to generate H 2 O 2 , which can be cleaved into ˙OH by UV light (eqn (20) and ( 21)). 178 Second, ozone can be reduced by electrons to ozonide radicals (eqn (22)), which further react with H + to produce ˙OH (eqn (23) and ( 24)). 179 Third, the O 2 ˙− produced through the reaction between oxygen and electrons (eqn (3)) can also react with ozone to generate ozonide radicals (eqn (25)) and further produce ˙OH through a chain reaction (eqn ( 23) and ( 24)).…”