Facile in situ formation of a ternary 3D ZnIn₂S₄–MoS₂ microsphere/1D CdS nanorod heterostructure for high-efficiency visible-light photocatalytic H₂ production

Abstract

<p>A novel ternary 3D ZnIn₂S₄–MoS₂ microsphere/1D CdS nanorod (ZIS/MoS₂/CdS) photocatalyst was created to achieve excellent photocatalytic H₂ evolution under visible light irradiation.</p>

Construction of NiPx/MoS2/NiS/CdS composite to promote photocatalytic H2 production from glucose solution

“…With the cocatalysts loaded one by one, the color of samples changes from bright yellow to dark green (insert image of Figure 1B), also indicating that the visible light absorption is enhanced. In addition, the band gap energies of the semiconductors are estimated from the following formula: the linear region of the (αhν) 2 versus energy plot, 27 as CdS, 29 NiS 30 2D), consistent with the previously reported results. 22 There are six peaks about Ni 2p and metal Ni 0 (Figure 2E) 2F), which is consistent with the previous report.…”

“…Additionally, cocatalyst deposition is another common strategy to facilitate the transfer of charge carriers, such as MoS 2 and NiP x , which are widely used to boost the photocatalytic H 2 production 25,26 . The synergistic effects of heterostructure and multiple cocatalysts may effectively suppress the recombination of charge carriers and achieve high photocatalytic activity 27 …”

“…25,26 The synergistic effects of heterostructure and multiple cocatalysts may effectively suppress the recombination of charge carriers and achieve high photocatalytic activity. 27 Based on the above speculation, structure designing and composition modifying are skillfully combined to synthesize the multi-component photocatalyst ( O (8 mmol) into 50 ml EDA, with the molar ratio of 1:8. A certain amount of NaBH 4 was then added in the stirring process, and the reaction was carried out at 180℃ for 12 h, and the precipitate remaining in the reaction was washed and dried to obtain NiP x .…”

A Review and Recent Developments in Full‐Spectrum Photocatalysis using ZnIn2S4‐Based Photocatalysts

“…Researchers have conducted extensive studies on the hydrogen evolution mechanism and performance of the ZIS photocatalyst under visible and NIR light. [ 43,63,78,129,145–154 ] For instance, Tan et al reported visible‐light‐active WO 3 /ZIS nanocomposites with a Z‐scheme heterojunction, with good photocatalytic activity toward hydrogen production. [ 155 ] The intimate contact interfaces and favorable Z‐scheme charge transfer pathways significantly accelerated the separation and transportation of photogenerated charge carriers.…”

Simultaneously Efficient Solar Light Harvesting and Charge Transfer of Hollow Octahedral Cu2S/CdS p–n Heterostructures for Remarkable Photocatalytic Hydrogen Generation

“…Owing to the sluggish charge-carrier separation in various semiconductors, the photocatalytic performance is still far below what is expected. Aiming at these issues, diverse approaches have been exploited to address, such as heteroatoms doping [15], dye sensitization [16], defect engineering [17,18], and heterostructure engineering [19,20]. Among these strategies, heterojunction engineering has been considered an effective tool to suppress the photoexcited charge recombination and optimize photocatalytic performance.…”