Novel β-NiS film modified CdS nanoflowers heterostructure nanocomposite: Extraordinarily highly efficient photocatalysts for hydrogen evolution

Enhanced photocarriers separation of novel CdS/pt/Mo2C heterostructure for visible-light-driven hydrogen evolution

“…Compared with other samples, CdS/Pt/Mo 2 C-0.5 possesses apparent quantum yield of 9.39% (AQY ¼ 9.39%) under visible-light irradiation. 25,[28][29][30][31][32][33] Interestingly, upon further increasing the percent of Pt nanoparticles, the rate for photocatalytic hydrogen generation decreases, which is probably due to the extra percent of Pt nanoparticles in the CdS/Pt/Mo 2 C system. The excessive Pt may act as the center of recombination, which has been proven by previous research.…”

NiS‐Decorated ZnO/ZnS Nanorod Heterostructures for Enhanced Photocatalytic Hydrogen Production: Insight into the Role of NiS

“…The photocatalytic properties of the samples toward water splitting were evaluated by irradiating with a 300 W Xe lamp (780 nm > λ > 320 nm) as the simulative solar light in the presence of 20 vol% methanol as the sacrificial agent. As shown in Figure a, the pure NiS showed no photocatalytic H 2 production activity, revealing that NiS only played the role of the cocatalyst in NiS/ZnOS–15 photocatalyst . In addition, both ZnO and ZnOS exhibited a limited activity with the hydrogen production rate of 2.66 and 4.06 mmol g −1 h −1 , respectively, due to their poor light absorption and low carrier transfer efficiency.…”

Novel Method of MoS2 Decorated CdS Core‐shell Nano‐Heterojunctions for Highly Efficient and Stable Hydrogen Generation

“…The possible reason for this phenomenon is that the photo‐induced electrons were excited from the valence band (VB) of CdS to the conduction band (CB) of CdS under visible light, and these photo‐induced electrons were migrated to the CB of MoS 2 . Meanwhile, driven by potential energy, photogenerated holes were transferred from the VB of CdS to the VB of MoS 2 , thus the generation and transfer of electron‐hole pairs reached equilibration, and the constant current was formed, which effectively prevented the combination of the electron‐hole pairs . Notably, it can be concluded that the maximum photocurrent density of CdS@MoS 2 ‐2 wt% is about 40 times greater than that of pure CdS.…”