Synergistic effect of nitrogen vacancy on ultrathin graphitic carbon nitride porous nanosheets for highly efficient photocatalytic H2 evolution

Controllable synthesis of Co nanoparticles with the assistance of cucurbit[6]uril and its efficient photoelectrochemical catalysis in water splitting on a g-C3N4 photoanode

“…In Q [6]-Co NPs to efficiently harvest the visible light and produce more photo-generated charge carriers. Subsequently, the band gap (E g ) of the prepared sample was calculated from Tauc's equation, 3,5,9 as shown in Fig. 2d, and the E g of bare g-C 3 N 4 (2.65 eV) coincided with the values in previous reports.…”

“…Photoelectrochemical water splitting has shown great prospects in generating hydrogen and oxygen to solve the energy crisis and environmental issues. 1,2 Among the semiconductor family, graphite carbon nitride (g-C 3 N 4 ) is considered to be a visible light active polymer semiconductor with a bandgap of 2.7 eV, [3][4][5] which has been regarded as a promising photoelectrode material in PEC systems with the advantages of a suitable band position, a moderate bandgap, a certain range of visible-light absorption, non-toxicity, and economic applicability. Unfortunately, compared to metal oxide semiconductors, g-C 3 N 4 exhibits a relatively low conductivity and a high electron-hole recombination rate, which limit its widespread application.…”

Doping regulates pyro-photo-electric catalysis to achieve efficient water splitting in Ba1−xSrxTiO3 through solar energy and thermal resources

“…Furthermore, new trapping sites are introduced by the incorporation of dopant ions. The trapping sites 33 can prolong the lifetime of charge carriers and improve their separations. This indicates that doping regulation can enhance light capture 34,35 and can effectively induce the generation and separation of photoelectric charge, generating more charge for interfacial redox reaction.…”

Facile one‐pot pyrolysis preparation of SnO2/g‐C3N4 composites for improved photocatalytic H2 production

“…As a photocatalyst, polymeric g-C 3 N 4 has the advantages of suitable band structure, good chemical stability, nontoxicity, low cost, easy preparation, etc. [26][27][28][29][30][31][32][33] However, because of low specific surface area, limited utilization of visible light and excessively high photogenerated carrier recombination rate of g-C 3 N 4 , [34][35][36][37][38][39][40][41] its photocatalytic H 2 production performance has been limited to date.…”