Substantially enhanced photoelectrochemical performance of TiO2 nanorods/CdS nanocrystals heterojunction photoanode decorated with MoS2 nanosheets

Ultrasonication-assisted liquid-phase exfoliation enhances photoelectrochemical performance in α-Fe2O3/MoS2 photoanode

“…Two peaks are shown in the modified sample at 232.46 and 235.54 eV, which respectively correspond to Mo 3d 3/2 and Mo 3d 5/2 and confirm the existence of Mo 6+ cations in MoS 2 . The energy separation between Mo 3d 5/2 and Mo 3d 3/2 is estimated to be 3.08 eV (<3.3 eV), which is indicative of the presence of MoS 2 [59] .…”

“…This behavior could be attributable to the heterojunction between MoS 2 and α-Fe 2 O 3 , which improved the charge separation and reduced the recombination of the photogenerated electrons and holes. However, further increases the amount of MoS 2 loaded on the surface of α-Fe 2 O 3 gradually decreased the photocurrent density, because excessive MoS 2 may block the light absorption of α-Fe 2 O 3 [58] , [59] . Moreover, after the deposition of MoS 2 nanosheets, the onset potential significantly shifts from 0.25 V for α-Fe 2 O 3 to a lower applied voltage of 0.1 V. Further, the chopped plot shown in Fig.…”

β-In2S3 as Water Splitting Photoanodes: Promise and Challenges

“…One of the most effective way to convert solar energy to controllable energy is the hydrogen production by photoelectrochemical (PEC) water splitting [8,9]. Since Fujishima and Honda reported water splitting with titanium oxides (TiO 2 ) for the first time in 1972, extensive efforts have been devoted to photoanodes using TiO 2 [10][11][12][13][14][15][16]. However, TiO 2 can only absorb the ultraviolet (UV) light because of its wide band gap of 3.2 eV, where UV light occupies only 5% of total solar spectrum [17].…”

Flower-like MoS2 microspheres compounded with irregular CdS pyramid heterojunctions: highly efficient and stable photocatalysts for hydrogen production from water

“…Many highly active MoS 2 -loaded CdS photocatalysts have been reported in the literature. [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43] Zhao et al reported a platinum-free 1D/2D CdS/MoS 2 photocatalyst, and their experimental results showed that the highest hydrogen production rate of 1.79 mmol g À1 h À1 was obtained when the reaction ratio of CdS to MoS 2 was 0.3. 41 Yin et al reported noble-metal-free CdS@MoS 2 core-shell nanoheterostructures.…”