Two-dimensional nickel nanosheets coupled with Zn0.5Cd0.5S nanocrystals for highly improved visible-light photocatalytic H2 production

Efficient hydrogenation of cinnamaldehyde to 3-phenylpropanol on Ni/NiS-modified twin Zn0.5Cd0.5S under visible light irradiation

“…S2a †), which corresponds to the (010) diffraction plane of metallic Ni 0 . 22,23 The corresponding selected area electron diffraction (SAED) image in Fig. 1g shows bright points with different arrangements of (100), (300), (010) and (102) planes, demonstrating the presence of twin crystal ZCS, NiS and Ni 0 , respectively.…”

Transition‐Metal‐Based Cocatalysts for Photocatalytic Water Splitting

“…Owing to the enlarged interface contact, the increased light harvesting, and the accelerated electron transfer, the resultant TiO 2 /CuNWs composite exhibited a remarkably improved photocatalytic H 2 evolution activity and AQE compared to bare TiO 2 (Figure 8I). Zeng et al [ 71 ] found that Ni cocatalyst with the structure of 2D nanosheets was used as a support to load Zn 0.5 Cd 0.5 S semiconducting nanocrystals which led to an efficient photocatalytic H 2 evolution efficiency (Figure 8J).…”

“…The enhanced photocatalytic performance resulted from the cocatalytic function of introduced Cu clusters (Figure 9D), which can tune the electronic structure of TiO 2 to achieve optimized Gibbs free energy (Figure 9E) and enable the efficient transfer of electrons from TiO 2 to Cu (Figure 9F). The work by Gao et al [74] found that Fe, Co, and Ni clusters with [29] CdS Co Photodeposition λ > 420 nm (Xe) (NH 4 ) 2 SO 3 25980 (H 2 ) -18 (2018) [69] g-C 3 N 4 Co Photodeposition AM 1.5G (Xe) TEOA 2295 (H 2 ) 6.2 (400 nm) 48 (2018) [70] Zn 0.5 Cd 0.5 S Ni Impregnation λ > 420 nm (Xe) Na 2 SþNa 2 SO 3 5930 (H 2 ) -13.5 (2021) [71] HNb -12 (2020) [74] CdS Ni Photodeposition λ > 420 nm (Xe) Na 2 SþNa 2 SO 3 630100 (H 2 ) -16 (2020) [57a] g-C 3 N 4 Ni Impregnation-calcination (Xe) TEOA 354.9 (H 2 ) -36 (2020) [75] TiO 2 Cu Hydrothermal-calcination (Xe) Methanol 3700 (H 2 ) -16 (2021) [76] pyridyl-functionalized conjugated microporous polymer (PCMP) [77] ZnIn 2 S 4 Ni Photodeposition λ > 420 nm (Xe) TEOA 22000 (H 2 ) 56.14 (450 nm) 12 (2022) [78] ZnIn 2 S 4 CoNi Impregnation λ > 420 nm (Xe) Ascorbic acid 3336 (H 2 ) 2.15 (420 nm) 16 (2019) [30] TiO 2 Cu-Ni [79] g-C 3 N 4 MoNi-MoO 2 Grinding λ ≥ 400 nm (Xe) TEOA 1359 (H 2 ) 6.9 25 (2020) [80] mpg-C 3 N 4 Fe-Co Impregnation-Calcination λ > 420 nm (Xe) TEOA 1957.8 (H 2 ) 2.26 (405 nm) 16 (2021) [81] TiO 2 Ni-Fe Impregnation AM 1.5G (Xe) Methanol 8270 (H 2 ) -30 (2021) [82] a)…”

“…J) Schematic illustration of the photocatalytic H 2 production reaction using the photocatalyst of Ni nanosheets supported Zn 0.5 Cd 0.5 S nanocrystals. Reproduced with permission [71]. Copyright 2020, Elsevier.…”

Insights into the Operation of Noble‐Metal‐Free Cocatalyst 1T‐WS2‐Decorated Zn0.5Cd0.5S for Enhanced Photocatalytic Hydrogen Evolution

“…However, Zn x Cd 1À x S has some disadvantages, such as fast recombination of photogenerated electron-hole pairs and photocorrosion. [6][7][8] Traditionally, noble metal co-catalysts (such as Pt, Au, etc.) deposited on a metal sulfide surface can enhance the photo-induced carrier separation and transport to deal with the above problems.…”