In-situ phosphating to synthesize Ni2P decorated NiO/g-C3N4 p-n junction for enhanced photocatalytic hydrogen production

CdS/ZnS/ZnO ternary heterostructure nanofibers fabricated by electrospinning for excellent photocatalytic hydrogen evolution without co-catalyst

“…Since the pioneering work of Fujishima and Honda in 1972 [8] on photoelectrochemical water splitting over a TiO2 electrode, photocatalytic H2 generation has been investigated as one of the most promising routes to convert solar energy into available chemical energy [9][10][11][12][13][14][15]. Until now, many semiconductors, such as TiO2 [16][17][18], g-C3N4 [19][20][21][22], ZnO [23,24], and CdS [25,26], have been explored as photocatalysts for hydrogen generation by water splitting. However, single semiconductors have some disadvantages such as high recombination probability of photocarriers and limited redox potential [27][28][29].…”

Cu3P and Ni2P co‐modified g‐C3N4 nanosheet with excellent photocatalytic H2 evolution activities

“…[7][8][9] Currently, many efforts have been devoted to exploiting semiconductor-based photocatalysts, such as cadmium sulfide (CdS), [10][11][12] titanium dioxide (TiO 2 ) , 13,14 bimetallic sulfides, 15,16 bimetallic phosphides 17 and graphite-like phase carbon nitride (g-C 3 N 4 ). 4,[18][19][20][21] g-C 3 N 4 is a rising star amongst these because of its appropriate bandgap, lowcost, nontoxic and earth-abundant nature, facile preparation and high thermal/ chemical stability. [22][23][24][25][26][27] Nevertheless, the photocatalytic activity of pristine g-C 3 N 4 is still limited by its inherently lower carrier transfer efficiency and rapid recombination of photo-induced e − -h +.…”

“…Among the alternative energy sources, hydrogen (H 2 ) is thought to be an ideal substitute to alleviate energy and environmental problems because of its high energy density, zero pollution, as well as sustainable and regenerative features 7–9 . Currently, many efforts have been devoted to exploiting semiconductor‐based photocatalysts, such as cadmium sulfide (CdS), 10–12 titanium dioxide (TiO 2 ) , 13,14 bimetallic sulfides, 15,16 bimetallic phosphides 17 and graphite‐like phase carbon nitride (g‐C 3 N 4 ) 4,18–21 . g‐C 3 N 4 is a rising star amongst these because of its appropriate bandgap, lowcost, nontoxic and earth‐abundant nature, facile preparation and high thermal/chemical stability 22–27 .…”

Recent Progress of Transition Metal Phosphides for Photocatalytic Hydrogen Evolution

“…Under the effect of the p-n junction, the holes in the VB of g-C 3 N 4 could transfer to NiO rapidly, while the electrons on the CB migrated to Ni 2 P through the intimate interfacial contact and then participated in the hydrogen production reaction. [32] The intimate contact between Ni 2 P and NiO and the respectable conductivity of Ni 2 P were helpful to accelerate the transfer of electron and reduce the recombination rate. The photocatalytic activity of these composites is shown in Table 4.…”