1D/2D TiO2/ZnIn2S4 S-scheme heterojunction photocatalyst for efficient hydrogen evolution

Cooperative Coupling of H2O2 Production and Organic Synthesis over a Floatable Polystyrene‐Sphere‐Supported TiO2/Bi2O3 S‐Scheme Photocatalyst

“…In Figure S6, Supporting Information, the slopes of TO and BO are both positive, which are associated with their n-type properties, and the flat band potentials are extrapolated to −0.1 and −0.4 V, respectively. Combining UPS analysis (in Figure S7, Supporting Information) and literature, [39] the staggered band structures of TO and BO are depicted in Figure S8a, Supporting Information. The conduction band (CB) bottom potentials of TO and BO are approximately −0.4 and −0.9 V (vs normal hydrogen electrode (NHE), pH = 0) and the valence band (VB) top potentials are 2.9 and 2.3 V referring to the bandgap energies from the UV-vis spectra, respectively.…”

H2-production and electron-transfer mechanism of a noble-metal-free WO3@ZnIn2S4 S-scheme heterojunction photocatalyst

“…Indium zinc sulde (ZnIn 2 S 4 ) is an n-type reduction photocatalyst with a high conduction band (CB) level and narrow bandgap. [19][20][21][22][23] The photoexcited electrons of ZnIn 2 S 4 can reduce water to H 2 from a thermodynamic perspective. More importantly, the sulfur site of suldes is regarded as the active site for the H 2 evolution reaction (HER) due to its small hydrogen adsorption free energy.…”

Nb–O–C Charge Transfer Bridge in 2D/2D Nb2O5/g‐C3N4 S‐Scheme Heterojunction for Boosting Solar‐Driven CO2 Reduction: In Situ Illuminated X‐Ray Photoelectron Spectroscopy Investigation and Mechanism Insight

“…Among the many modification strategies of g-C 3 N 4 , the construction of heterojunction with other semiconductors is considered to be a very effective and feasible strategy to improve the photocatalytic performance. [36][37][38][39][40][41] 2D semiconductors have attracted wide attention due to their unique size effect (thickness less than 10 nm), excellent electronic and optical properties, interface effects, high dispersion, and short charge transfer paths. [42][43][44][45] Considering sluggish charge separation of g-C 3 N 4 , we introduced Bi 3 NbO 7 to generate a solid junction in previous work to help electron transfer from Bi 3 NbO 7 to g-C 3 N 4 , thus prolonging the lifetimes of visible-light-induced photoelectrons.…”