Improving oxygen evolution activity by constructing a perylene imide based Z-scheme heterojunction

Abstract

Solar water splitting is an eco-friendly technology to produce clean energy, but the water oxidation half reaction hinders the overall water splitting due to four electron transfer processes. Z-Scheme photocatalytic...

Photocatalytic generation of H2O2 over a Z-scheme Fe2O3@C@1T/2H-MoS2 heterostructured catalyst for high-performance Fenton reaction

“…In the heterojunction with a low Fermi level, the photoinduced e − is able to rapidly transfer to the surface due to surface band bending and a built-in electric field, leading to low recombination efficiency. 38 In Fig. 4d, the work function of Fe 2 O 3 , Fe 2 O 3 @C, Fe 2 O 3 @C@2H-MoS 2, and Fe 2 O 3 @C@1T/2H-MoS 2 is 4.76, 5.20, 5.55 and 5.67 eV, respectively.…”

Metal–organic frameworks in photocatalytic Z-scheme heterojunctions: an emerging technology

“…Further, the cleavage of the O-H bond and formation of the O-O bond has a high overpotential of B700 mV, that hinders the OER. 61 Therefore, most Z-scheme photocatalysts for OER investigations are still in nascent stages and pristine MOF-based Z-schemes are practically unavailable. In contrast, the photo-oxidation power of MOF-Z-scheme photocatalysts has been widely studied for pollutant degradation, where the pollutants themselves act as sacrificial agents and lower the thermodynamic potential for the oxidation reaction.…”

Roles of Cobalt‐Coordinated Polymeric Perylene Diimide in Hematite Photoanodes for Improved Water Oxidation

“…[ 17 ] In the composite photoanode system, PDI was combined with CdS to fabricate a Z‐scheme heterojunction configuration for improving the interfacial carrier transfer. [ 18 ] Overall, the progressive application of PDI for photochemical oxygen evolution has been achieved, but the studies about PDI in PEC water splitting fields have been scarcely reported. Besides, its potential function in interfacial modulation needs urgent exploration.…”