Ultrathin cadmium sulfide nanosheets for visible-light photocatalytic hydrogen production

Xie, Ya-Meng; Liu, Xiaohua; Zhang, Rui; Liu, Hui; Mao, Jing; Dong, Cunku; Du, Xi‐Wen

doi:10.1039/c9ta13685a

Cited by 13 publications

(6 citation statements)

References 27 publications

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“…In 2007, one-dimensional (1D) CdS nanowires (NWs) synthesized via a solvothermal method in ethylenediamine were found to exhibit a higher rate of photocatalytic H 2 production in the mixed aqueous solution of Na 2 S and Na 2 SO 3 as sacrificial re- agents [168]. Meanwhile, CdS nanosheets with engineered thicknesses have been fabricated by different methods [169][170][171][172]. Subsequently, various noble-metal or non-noble-metal cocatalysts, such as Pt-PdS [173], MoS 2 [166], NiS [174], Ni(OH) 2 [175] and Ni 3 C [176], have been applied in photocatalytic H 2 evolution over CdSbased photocatalysts.…”

Section: Science China Materialsmentioning

confidence: 99%

Nanostructured CdS for efficient photocatalytic H2 evolution: A review

et al. 2020

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Cadmium sulfide (CdS)-based photocatalysts have attracted extensive attention owing to their strong visible light absorption, suitable band energy levels, and excellent electronic charge transportation properties. This review focuses on the recent progress related to the design, modification, and construction of CdS-based photocatalysts with excellent photocatalytic H 2 evolution performances. First, the basic concepts and mechanisms of photocatalytic H 2 evolution are briefly introduced. Thereafter, the fundamental properties, important advancements, and bottlenecks of CdS in photocatalytic H 2 generation are presented in detail to provide an overview of the potential of this material. Subsequently, various modification strategies adopted for CdS-based photocatalysts to yield solar H 2 are discussed, among which the effective approaches aim at generating more charge carriers, promoting efficient charge separation, boosting interfacial charge transfer, accelerating charge utilization, and suppressing charge-induced self-photocorrosion. The critical factors governing the performance of the photocatalyst and the feasibility of each modification strategy toward shaping future research directions are comprehensively discussed with examples. Finally, the prospects and challenges encountered in developing nanostructured CdS and CdS-based nanocomposites in photocatalytic H 2 evolution are presented.

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Section: Science China Materialsmentioning

confidence: 99%

Nanostructured CdS for efficient photocatalytic H2 evolution: A review

et al. 2020

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“…Interestingly, structural degradation of thicker nanosheets was found already after 20 h of illumination. [84] MoS 2 is a well-known cocatalyst with good adsorption/desorption properties for H intermediates (ΔG H* close to 0), which promotes H 2 generation. [40] On its own, MoS 2 demonstrates poor HER activity, mainly due to the reduced activity of catalytic sites associated with nanostructure aggregation and poor electronic conductivity of its basal plane.…”

Section: Cds-based Photocatalystsmentioning

confidence: 99%

Solar Fuel Production from Hydrogen Sulfide: An Upstream Energy Perspective

Ferree

Koščo

Laquai

et al. 2023

Adv Energy and Sustain Res

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Hydrogen sulfide is readily available in vast quantities in the subsurface as a byproduct of industrial processes. Hydrogen evolution from H2S can transform this highly toxic gas into a source of green fuel. Compared to water splitting, H2S dissociation is thermodynamically more favorable. However, feasible industrial‐scale catalytic technologies are not developed yet. The recovery of valuable chemicals using carbon‐neutral photocatalytic processes can capitalize on abundant solar irradiation and advanced semiconductors. The challenge is developing photocatalysts that can efficiently operate over the long term in the harsh environment of subsurface and industry, while utilizing as much of the light source spectrum as possible and providing optimum adsorption/desorption abilities of hydrogen and sulfur‐containing intermediates. Meeting these requirements demands improved kinematic models of photocatalytic H2S decomposition to assess the effect of high temperatures, pressures, mixtures of hydrocarbons, produced water, and other contaminants. Metal sulfides‐based catalysts may be the key to H2S decomposition in the subsurface (e.g., oil and gas reservoirs) and wellbores, but first they need to be upscaled as bulk, robust, and recyclable materials. This review presents a guide for the development of the upstream energy production technology via photocatalytic H2S conversion.

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“…[79,80] Cadmium sulfide (CdS) is one of the well-known visible-light active semiconductor photocatalysts, which is easy to prepare in different nanostructures. [81] CdS nanostructures generally require precious metal Pt as a cocatalyst to enhance photocatalytic H 2 evolution performance, but precious metal Pt reserves are scarce and expensive. Therefore, some researchers have been coupling CdS with other semiconductors, which show an efficient visible-light photocatalytic H 2 evolution.…”

Section: •−mentioning

confidence: 99%

1D/2D Heterostructured Photocatalysts: From Design and Unique Properties to Their Environmental Applications

Zhang

et al. 2020

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With the progress of dissimilar dimensional materials, 1D and 2D materials have been extensively investigated as heterogeneous photocatalysts, which realize the unique dimensionality‐dependent advantages and mitigate the disadvantages during the environmental and sustainable energy applications. The progress in 1D/2D heterogeneous photocatalysts stems from the combination of different growth modes between 1D and 2D nanostructures and the judicious control to establish the oriented 1D/2D interface. To promote this field, it is necessary to gain insights into the interface engineering in the 1D/2D heterogeneous photocatalysts. This mini‐review summarizes the designed synthesis and application of dimensional heterogeneous photocatalysts from 1D and 2D materials. Some typical research to overview the advantages of different types of interface engineered 1D/2D heterogeneous photocatalysts for various photocatalytic processes is highlighted in detail. At last, this review ends by drawing on more design strategies for such 1D/2D heterogeneous photocatalysts, which may inspire further developments of efficient dissimilar dimensional heterogeneous photocatalysts.

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Ultrathin cadmium sulfide nanosheets for visible-light photocatalytic hydrogen production

Abstract: Cd4S5 nanosheets with thickness of 1 nm were successfully synthesized and applied for photocatalytic hydrogen production due to their ultrathin thickness, unexpected stoichiometry and unsaturated surface S− anions.

Cited by 13 publications

References 27 publications

Nanostructured CdS for efficient photocatalytic H2 evolution: A review

Nanostructured CdS for efficient photocatalytic H2 evolution: A review

Solar Fuel Production from Hydrogen Sulfide: An Upstream Energy Perspective

1D/2D Heterostructured Photocatalysts: From Design and Unique Properties to Their Environmental Applications

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