Design of AgxAu1−x alloy/ZnIn2S4 system with tunable spectral response and Schottky barrier height for visible-light-driven hydrogen evolution

An, Huiqin; Li, Min; Liu, Ruidong; Gao, Zirui; Zhang, Yin

doi:10.1016/j.cej.2019.122953

Cited by 66 publications

(27 citation statements)

References 51 publications

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“…However, it may be that as said above such photocorrosion does not occur when trying to photogenerate H 2 using a sacrificial reagent, as is the case not only of Refs. [7,8] (in the latter case, using photoelectrochemistry), which are the first ones that the present authors could detect; additionally, other more recent cases have appeared [24,[47][48][49][50]. In fact, not only H 2 can be produced by ZnIn 2 S 4 ; in recent years, it has also been found possible to photoreduce CO 2 or produce syngas, in some cases combining two semiconductors [51][52][53][54].…”

Section: Discussionsupporting

confidence: 63%

V-Substituted ZnIn2S4: A (Visible+NIR) Light-Active Photocatalyst

Lucena

Conesa

2021

Photochem

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ZnIn2S4 is known to be a visible light-active photocatalyst. In this work, it is shown that by substituting part of the In atoms with vanadium, the visible light range of photocatalytic activity of such material can be extended, using the so-called in-gap band scheme that has been shown to enhance photovoltaic characteristics. Characterization of this material using several techniques, complemented by DFT calculations, will support this statement. While here only the degradation of aqueous HCOOH in well-aerated conditions is discussed, the same material may be used, with an adequate sacrificial reagent, for photocatalytic H2 generation.

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Section: Discussionsupporting

confidence: 63%

V-Substituted ZnIn2S4: A (Visible+NIR) Light-Active Photocatalyst

Lucena

Conesa

2021

Photochem

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“…Gold and silver are noble metals exhibit large surface plasmonic effects that cause high absorption of visible light and a strong electric field on their surface. Plasma hybridization regulates the adsorption band by adjusting the ratio of silver to gold in Agx-Au1-x nanoparticles [174].…”

Section: Plasmonic Bi-noble Metal Photocatalystsmentioning

confidence: 99%

Hydrogen evolution via noble metals based photocatalysts: A review

et al. 2021

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In recent decades, the use of photocatalysts in the evolution of hydrogen (H2) has received much attention. However, the use of the well-known titanium oxide and another photocatalyst as a base for noble metals is limited due to their major weakness in electron-hole pair separation. The use of cocatalysts can be a good way to overcome this problem and provide better performance for the evolution of hydrogen. In this review, suitable high-efficiency cocatalysts for solar hydrogen production have been thoroughly reviewed. New strategies and solutions were examined in terms of increasing the recombination of charge carriers, designing reactive sites, and enhancing the wavelengths of light absorption. Several new types of cocatalysts based on semiconductors in noble groups and dual metals have been evaluated. It is expected that these photocatalysts will be able to reduce the activation energy of reaction and charge separation. In this regard, the existing views and challenges in the field of photocatalysts are presented. The characteristics of monoatomic photocatalysts are reviewed in this manuscript and the latest advances in this field are summarized. Further, the future trends and upcoming research are also briefly discussed. Finally, this review presents noble metal-based photocatalysts for providing suitable photocatalysts on a larger scale and improving their applicability.

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“…To date, extensive striving have been committed to broaden visible‐light responsive photocatalysts for high‐efficiency H 2 production. [ 1–4 ] Among the various catalysts, such as transition metal nitrides, [ 5–7 ] the 2D ternary chalcogenide ZnIn 2 S 4 is a highly promising n‐type semiconductor for photocatalytic H 2 evolution, [ 8–10 ] thanks to its good visible‐light‐harvesting capability (energy bandgap [ E g ] = 2.34–2.48 eV), photostability, and nontoxicity. [ 11,12 ] Yet the single‐phase ZnIn 2 S 4 catalyst typically suffers from serious deterioration in both photocatalytic activity over H 2 evolution, due to its physical and structural deficiencies.…”

Section: Figurementioning

confidence: 99%

Enhancement of Interfacial Charge Transportation Through Construction of 2D–2D p–n Heterojunctions in Hierarchical 3D CNFs/MoS₂/ZnIn₂S₄ Composites to Enable High‐Efficiency Photocatalytic Hydrogen Evolution

et al. 2020

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Hierarchical three‐dimensional (3D) carbon nanofibers (CNFs)/molybdenum disulfide (MoS2)/ZnIn2S4 composites with p–n heterojunctions between the basal planes of two‐dimensional (2D) phases are fabricated, using in situ spinning‐based chemical vapor deposition together with hydrothermal processing. It is found that large and intimately interfaced 2D–2D planes between the n‐type ZnIn2S4 and the CNFs‐supported p‐type MoS2 enable evident junction rectification effect, which facilitates interfacial charge separation to assist effective suppression of the recombination of photogenerated electrons and holes. In addition, the p‐type MoS2 nanosheets with high in‐plane conductivity and narrower bandgap are highly effective in providing larger quantities of photoinduced electrons, which can be readily injected into the outer n‐type ZnIn2S4 coating for the reduction of H2O into H2, whereas the holes are driven into the CNF cores by the junction field to be finally scavenged. The large specific surficial area of the sulfides provides abundant sulfur‐rich sites active for H2 evolution. Consequently, the optimal CNFs/MoS2/ZnIn2S4 composite with 5 mmoL MoS2 loading exhibits robust H2 evolution under simulate sunlight irradiation, achieving a remarkably enhanced photocatalytic H2 production rate over 151.42 mmoL⋅h−1⋅g−1 and a high apparent quantum yield of 20.88% at 365 nm, which is 4.65 times higher than that of pristine ZnIn2S4.

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Design of AgxAu1−x alloy/ZnIn2S4 system with tunable spectral response and Schottky barrier height for visible-light-driven hydrogen evolution

Cited by 66 publications

References 51 publications

V-Substituted ZnIn2S4: A (Visible+NIR) Light-Active Photocatalyst

V-Substituted ZnIn2S4: A (Visible+NIR) Light-Active Photocatalyst

Hydrogen evolution via noble metals based photocatalysts: A review

Enhancement of Interfacial Charge Transportation Through Construction of 2D–2D p–n Heterojunctions in Hierarchical 3D CNFs/MoS₂/ZnIn₂S₄ Composites to Enable High‐Efficiency Photocatalytic Hydrogen Evolution

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Design of AgxAu1−x alloy/ZnIn2S4 system with tunable spectral response and Schottky barrier height for visible-light-driven hydrogen evolution

Cited by 66 publications

References 51 publications

V-Substituted ZnIn2S4: A (Visible+NIR) Light-Active Photocatalyst

V-Substituted ZnIn2S4: A (Visible+NIR) Light-Active Photocatalyst

Hydrogen evolution via noble metals based photocatalysts: A review

Enhancement of Interfacial Charge Transportation Through Construction of 2D–2D p–n Heterojunctions in Hierarchical 3D CNFs/MoS2/ZnIn2S4 Composites to Enable High‐Efficiency Photocatalytic Hydrogen Evolution

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Enhancement of Interfacial Charge Transportation Through Construction of 2D–2D p–n Heterojunctions in Hierarchical 3D CNFs/MoS₂/ZnIn₂S₄ Composites to Enable High‐Efficiency Photocatalytic Hydrogen Evolution