Novel Cu3P/g-C3N4 p-n heterojunction photocatalysts for solar hydrogen generation

0D CoP cocatalyst/ 2D g‐C3N4 nanosheets: An efficient photocatalyst for promoting photocatalytic hydrogen evolution

“…Metal phosphide is reported to be an electrocatalyst with excellent properties including low overpotential and good durability over a wide pH range . Transition metal phosphides, such as FeP, Cu 3 P, MoP, Ni 2 P, CoP, Co 2 P, and NiCoP, were proposed as efficient cocatalysts for catalytic H 2 evolution. Compared with other noble metal‐free cocatalysts, transition metal phosphides exhibit many advantages such as high hydrogen production activity, good stability, and wide pH tolerance.…”

3D‐Graphene Decorated with g‐C3N4/Cu3P Composite: A Noble Metal‐free Bifunctional Electrocatalyst for Overall Water Splitting

“…Further, the specific surface area of the catalyst has been calculated via the Brunauer‐Emmett‐Teller (BET) analysis; shown in Figure S8. The BET surface area (S a ) of 3DG and 3DG‐Mix are found to be 154 and 145 m 2 /g respectively, which reveals that the nanohybrid synthetic process doesn't lead to significant agglomeration . The distribution of catalyst nanoparticles have been already discussed via EDX elemental mapping.…”

“…(Figure d–i) The structure and morphology of the 3DG‐Mix sample are characterized via SEM (Figure b) and high‐resolution TEM (HR‐TEM) shown in Figure c where lattice fringes of individual material are clearly been observed. The lattice fringes of 0.24 nm, 0.20 nm, 0.17 nm correspond to the plan of (112), (300) and (220) of hexagonal Cu 3 P and that of 0.33 nm for the graphitic layers refers to (002) plane of both graphene and g‐C 3 N 4 . Nevertheless, it is very difficult to visualize the g‐C 3 N 4 nanosheet lattice spacing separately in the 3DG‐graphene matrix due to the presence of a very low amount of g‐C 3 N 4 compared to graphene.…”

“…The BET surface area (S a ) of 3DG and 3DG-Mix are found to be 154 and 145 m 2 /g respectively, which reveals that the nanohybrid synthetic process doesn't lead to significant agglomeration. [30] The distribution of catalyst nanoparticles have been already discussed via EDX elemental mapping. (Figure 3d-i) The structure and morphology of the 3DG-Mix sample are characterized via SEM (Figure 3b) and high-resolution TEM (HR-TEM) shown in Figure 3c where lattice fringes of individual material are clearly been observed.…”

“…The lattice fringes of 0.24 nm, 0.20 nm, 0.17 nm correspond to the plan of (112), (300) and (220) of hexagonal Cu 3 P and that of 0.33 nm for the graphitic layers refers to (002) plane of both graphene and g-C 3 N 4 . [7,16,30,31] Nevertheless, it is very difficult to visualize the g-C 3 N 4 nanosheet lattice spacing separately in the 3DG-graphene matrix due to the presence of a very low amount of g-C 3 N 4 compared to graphene. Pure g-C 3 N 4 TEM and HR-TEM images have been shown in Figure S7, where the graphitic lattice fringes of g-C 3 N 4 (~0.34 nm) nanosheet has clearly been depicted.…”