Oxygen vacancy and Van der Waals heterojunction modulated interfacial chemical bond over Mo2C/Bi4O5Br2 for boosting photocatalytic CO2 reduction

Enhanced plasmonic photocatalytic performance of C3N4/Cu by the introduction of a reduced graphene oxide interlayer

“…The Mulliken charge populations of RGO/Cu and WRGO/Cu are compared, suggesting that C–O–Cu bonds also lead to more electron transport. 97…”

“…S15, ESI †) of CN/RGO and RGO/Cu heterostructures reveal the charge transfer between PCN and RGO as well as between RGO and Cu, where RGO is the electron enriched region, and the C-O-C and C-O-Cu bonds also participate in the electron transport. 96 In addition, the Mulliken charge populations (Table S3 97 The partial density of states (PDOS) of adsorption sites of protons on RGO, CN, and Cu sites of CN/RGO/Cu were calculated to determine the adsorption sites of protons. Combining the distribution of photo deposited nanoparticles, work function calculations, and the strong conductivity of RGO, it is demonstrated that a large number of electrons are trapped and gathered near the Fermi level of RGO.…”

Field‐assisted electrocatalysts spark sulfur redox kinetics: From fundamentals to applications

“…Additionally, the strength of built‐in EF should be quantitative to guide its further functional improvements. [ 69 ] As proposed by Zhu and coworkers, the strength of the built‐in EF could be experimentally determined by measuring the surface potential ( V S ) and surface charge density ( ρ ). [ 70 ] The built‐in EF of materials can be calculated with the Kanata model equation: [ 71 ] $$$E={\left(\frac{-2{V}_{S}\rho }{Ɛ{Ɛ}_{0}}\right)}^{\frac{1}{2}},$$$where E is the value of the built‐in EF, Ɛ is the low‐frequency dielectric constant, and Ɛ 0 is the vacuum dielectric constant.…”

The 2D van der Waals heterojunction MoC@NG@CN for enhanced photocatalytic hydrogen production

“…Recently, Peng et al designed a VDW heterojunction of Mo 2 C/Bi 4 O 5 Br 2 with an interfacial Mo–O bond to realize efficient green energy conversion. 26 Yao et al revealed that photogenerated electrons and holes in a graphene-based VDW heterojunction migrate from MoS 2 to the relative regions of graphene under the polarization promotion of monolayer graphene, which effectively facilitates the separation of photogenerated charge carriers. 8 Furthermore, the 2D VDW heterojunction Mo 2 C/g-C 3 N 4 achieves extraordinary photocatalytic degradation activity of tetracycline benefiting from ordered in-plane and VDW force-induced interlayer electron transport.…”

“…24,25 2D van der Waals (VDW) heterojunctions are favored for their large specic surface area, excellent stability, and the absence of lattice mismatch and atomic diffusion problems. 8,9,26,27 Additionally, as an intermolecular force, the VDW force can provide a driving force for charge transfer between layers to enhance photocatalytic performance. Recently, Peng et al designed a VDW heterojunction of Mo 2 C/Bi 4 O 5 Br 2 with an interfacial Mo-O bond to realize efficient green energy conversion.…”