Effect of SILAR-anchored ZnFe2O4 on the BiVO4 nanostructure: An attempt towards enhancing photoelectrochemical water splitting

Facile preparation of nickel phosphide for enhancing the photoelectrochemical water splitting performance of BiVO4 photoanodes

“…R s represented the contact resistance of the photoanode, while R ct represented the interfacial charge transfer resistance. 50,51 The R s values for the bare BVO, BVO/Ni 2 P, and BVO/Ni 12 P 5 photoanodes were 24.56 U, 22.72 U, 26.15 U, respectively. These very close R s values indicated that the loading of Ni 2 P and Ni 12 P 5 didn't affect the photoanode contact.…”

SILAR Deposition of Metal Oxide Nanostructured Films

“…[185] As mentioned in the previous section, BiOI, although not technically an oxide, is a well-studied material for photocatalysis, and has been also prepared by SILAR. [179,181,[259][260][261] However, in most cases, it exhibits a lower PEC performances than BiVO 4 , and therefore, in some reports, SILAR-BiOI was then converted to BiVO 4 by reacting it with a vanadium source. [259,260] The as-prepared BiVO 4 gave a good performance toward PEC water splitting, e.g., 1.21 mA cm −2 at 1.23 V versus RHE (3.55 mA cm −2 in the presence of hole scavenger Na 2 SO 3 ).…”

“…[179,181,[259][260][261] However, in most cases, it exhibits a lower PEC performances than BiVO 4 , and therefore, in some reports, SILAR-BiOI was then converted to BiVO 4 by reacting it with a vanadium source. [259,260] The as-prepared BiVO 4 gave a good performance toward PEC water splitting, e.g., 1.21 mA cm −2 at 1.23 V versus RHE (3.55 mA cm −2 in the presence of hole scavenger Na 2 SO 3 ). [259] Ag/Ag 2 WO 4 was deposited on ZnO nanorods using AgNO 3 and Na 2 WO 4 as the precursors and the composite material displayed excellent performances in PEC water splitting with 3 mA cm −2 at 1.23 V versus RHE in 0.1 m Na 2 SO 4 electrolyte.…”

“…Therefore, many studies have been devoted to the formation of type II heterostructures based on Fe 2 O 3 , BiVO 4 , and TiO 2 . Heterojunctions of Fe 2 O 3 /BiVO 4 , [264] ZnFe 2 O 4 /BiVO 4 , [260] CuCoO 2 / BiVO 4 , [259] BiVO 4 /TiO 2 , [189,265] BiVO 4 /ZnO, [266,267] BiVO 4 /WO 3 , [186] AgVO 3 /BiVO 4 , [268] Fe 2 O 3 /TiO 2 , [269] Ag 2 WO 4 -AgI/TiO 2 , [270] Ag/TiO 2 [271] Cu 2 O/TiO 2 , [190] BiFeO 3 /TiO 2 , [195] Ag/Ag 2 WO 4 /ZnO, [262] and CuWO 4 /BiOI [261] were prepared where at least one of the materials is deposited by SILAR. For example, TiO 2 nanotubes were synthesized by anodization of Ti-foil and then using SILAR to deposit a AgI-Ag 2 WO 4 layer to achieve heterojunction structure.…”

Construction of organic–inorganic hybrid photoanodes with metal phthalocyanine complexes to improve photoelectrochemical water splitting performance

“…11 To eliminate these drawbacks, researchers are committed to modifying the photoanode surface with oxygen evolution catalysts (OECs), which could suppress the charge carrier recombination and accelerate the surface water oxidation kinetics. [12][13][14][15] Up to now, numerous non-noble-metalbased OECs materials have been developed on BVO photoanodes, most of which are transition metal oxides [16][17][18][19] and hydroxides. 4,[20][21][22][23] In general, these inorganic OECs are modified on the surface of BVO photoanodes by hydrothermal, immersing-annealing, and (photo)electrodeposition methods.…”