Well-designed NiS/CdS nanoparticles heterojunction for efficient visible-light photocatalytic H2 evolution

Boosting photocatalytic H2 evolution through interfacial manipulation on a lotus seedpod shaped Cu2O/g-C3N4 p-n heterojunction

“…[1][2][3][4] Although tremendous progress has been made, photocatalysis technology is still restricted by the unsatisfactory performance of the existing photocatalysts. [5][6][7][8][9][10][11][12] To overcome this dilemma, it is essential to design cost-effective and high-performance photocatalysts to achieve efficient H 2 production for practical applications. 13,14 Among various photocatalysts, graphitic carbon nitride (g-C 3 N 4 ) has shown great potential for water splitting under visible light irradiation owing to its environmental friendliness, good physicochemical stability and distinctive electronic properties.…”

α-NiS–β-NiS growth on Cd0.5Zn0.5S formed Schottky heterojunctions for enhanced photocatalytic hydrogen production

“…For pure NiS, the binding energies at 860.6 eV and 878.6 eV are the satellite peaks of Ni 2p, while the binding energies at 855.4 eV and 873.0 eV are ascribed to Ni 2p 3/2 and 2p 1/2 , which indicates the existence of Ni 2+ . 45,46 The other two peaks located at 852.4 and 869.7 eV are ascribed to Ni d + with very small positive charges of NiS. 47 Compared to pure NiS, the Ni binding energies of 17%-NiS/Cd 0.5 Zn 0.5 S have changed, which demonstrates the formation of the NiS/Cd 0.5 Zn 0.5 S heterojunction.…”

Application of the similarity theory to analysis of photocatalytic hydrogen production and photocurrent generation

“…The Q1' criterion may serve as the similarity criterion in case of the composite materials based on graphitic carbon nitride doped by P and titanium carbide; the catalyst components were mixed at different time [72]. In [79] CdS with deposited NiS was described, and the crystallization time of CdS was varied. Figure 10 showed that for this set of samples the Q1' value remained constant, excluding the first sample.…”

“…Figure 10The dependence of Q 1 ' on the mixturing time of CdS suspension obtained for NiS/CdS samples discussed in[79].…”