Construction of S-scheme heterojunction catalytic nanoreactor for boosted photothermal-assisted photocatalytic H2 production

Lu, Jialin; Sun, Xinhai; Chen, Zhouze; Shen, Yu; Yuan, Hao; Guo, Feng; Shi, Weilong

doi:10.1016/j.apsusc.2023.158648

Cited by 33 publications

(3 citation statements)

References 87 publications

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“…Clearly, this is completely in line with the typical S-scheme heterojunction charge-transfer pathway. Therefore, the IEF, band bending, and electrostatic interaction play critical roles in the construction of S-scheme heterojunction, which not only facilitates the spatial separation of photogenerated charges but also preserves the stronger reactivity of charges, greatly improving the photocatalytic performance. − Based on the above experimental data and analysis results, in order to clarify the photocatalytic mechanism of the H-C-ZIS heterophase junction in RhB degradation, Cr(VI) reduction, and water splitting for hydrogen production, the schematic diagram of charge-transfer and reaction path during the catalytic process is illustrated in Scheme . In addition, the specific reaction equations involved are shown in Table S3.…”

Section: Resultsmentioning

confidence: 99%

Three-Dimensional Multihierarchical Hexagonal/Cubic ZnIn₂S₄ S-Scheme Heterophase Junction for Superior Photocatalysis

Ke,

Tang,

Xiong

et al. 2024

Inorg. Chem.

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It is an important strategy to design composite materials with a special microstructure and a tunable electronic structure through structural compatibility. In this work, a novel hexagonal/cubic ZnIn 2 S 4 polymorphic heterophase junction with a three-dimensional multihierarchical structure is successfully constructed by in situ growth of hexagonal ZnIn 2 S 4 nanosheets on the surface of cubic ZnIn 2 S 4 flower-like microspheres prepared by topological chemical synthesis. On the one hand, the multihierarchical architecture provides large specific surface area, abundant active sites, and excellent light trapping capability. On the other hand, the construction of a direct S-scheme heterophase junction enables the formation of a special charge-transfer channel under the force of a built-in electric field, which not only improves the separation efficiency of carriers but also ensures the stronger reaction activity of charges. The prepared ZnIn 2 S 4 heterophase junction composite photocatalyst exhibits greatly boosted photocatalytic efficiency in rhodamine B degradation, hexavalent chromium reduction, and water splitting for hydrogen production, which are 12.3, 6.5, and 3.1 times higher than that of pure hexagonal ZnIn 2 S 4 and 8.1, 5.1, and 2.3 times higher than that of pure cubic ZnIn 2 S 4 , respectively, demonstrating its significant potential for applications in energy and environmental fields.

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Section: Resultsmentioning

confidence: 99%

Three-Dimensional Multihierarchical Hexagonal/Cubic ZnIn₂S₄ S-Scheme Heterophase Junction for Superior Photocatalysis

Ke,

Tang,

Xiong

et al. 2024

Inorg. Chem.

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“…Hydrogen production from photocatalytic water/seawater splitting has attracted extensive research interest due to the urgency of energy shortage. − Especially, seawater is an abundant resource on Earth, and the direct hydrogen generation from seawater decreases the cost of water purification. − However, various salt ions (Na + , Mg 2+ , etc.) and impurities in seawater suppress the photocatalytic hydrogen evolution, resulting in decreased activity and stability .…”

Section: Introductionmentioning

confidence: 99%

PtCu Alloy-Modified Triptycene-Based Polymer with Charge Separation for Photocatalytic Hydrogen Evolution from Water/Seawater

Zhang,

Li,

Peng

et al. 2024

Inorg. Chem.

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Direct photocatalytic hydrogen from earth-abundant seawater is a great potential way to achieve sustainable and clean energy, yet unsatisfactory decomposition and rapid electron−hole pair recombination of catalysts hinder the solar-driven H 2 conversion efficiency. Herein, we designed a series of PtCu alloy nanoparticlemodified porous triptycene-based polymers (Pt x Cu 1 -TCP) to construct the heterostructure for highly efficient hydrogen generation from photocatalytic water/seawater splitting. Characterizations displayed that TCP with an ultrahigh surface area can confine the agglomeration of PtCu alloy; meanwhile, the PtCu alloy can facilitate the rapid electron transfer from TCP. In addition, TCP with a stable covalent bond structure can resist the corrosion of seawater. Benefiting from these two advantages, Pt 7 Cu 1 -TCP showed a remarkably enhanced photocatalytic performance with a maximum H 2 evolution rate of 3255 μmol g −1 h −1 in natural seawater with triethanolamine, which is 2.69, 116.25, and 1.08 times that of Pt-TCP, Cu-TCP, and optimal catalyst in pure water, respectively. This study provides an idea for the development of a novel catalytic system for hydrogen production from solar-driven water/seawater splitting.

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“…As the key to photocatalytic degradation, the issue of how to improve the separation efficiency of photogenerated carriers needs to be urgently resolved. 17–22 To solve this problem, it is a common method to construct heterojunctions. However, in the conventional type II heterojunction structure, the carrier separation efficiency is improved at the expense of the redox capacity of the catalyst.…”

Section: Introductionmentioning

confidence: 99%

Solid-waste-recycled CuO/C₃N₄ S-scheme heterojunctions for efficient photocatalytic antibiotic degradation

Liu,

Lin,

et al. 2024

Nanoscale

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Construction of S-scheme heterojunction catalytic nanoreactor for boosted photothermal-assisted photocatalytic H2 production

Cited by 33 publications

References 87 publications

Three-Dimensional Multihierarchical Hexagonal/Cubic ZnIn₂S₄ S-Scheme Heterophase Junction for Superior Photocatalysis

Three-Dimensional Multihierarchical Hexagonal/Cubic ZnIn₂S₄ S-Scheme Heterophase Junction for Superior Photocatalysis

PtCu Alloy-Modified Triptycene-Based Polymer with Charge Separation for Photocatalytic Hydrogen Evolution from Water/Seawater

Solid-waste-recycled CuO/C₃N₄ S-scheme heterojunctions for efficient photocatalytic antibiotic degradation

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Construction of S-scheme heterojunction catalytic nanoreactor for boosted photothermal-assisted photocatalytic H2 production

Cited by 33 publications

References 87 publications

Three-Dimensional Multihierarchical Hexagonal/Cubic ZnIn2S4 S-Scheme Heterophase Junction for Superior Photocatalysis

Three-Dimensional Multihierarchical Hexagonal/Cubic ZnIn2S4 S-Scheme Heterophase Junction for Superior Photocatalysis

PtCu Alloy-Modified Triptycene-Based Polymer with Charge Separation for Photocatalytic Hydrogen Evolution from Water/Seawater

Solid-waste-recycled CuO/C3N4 S-scheme heterojunctions for efficient photocatalytic antibiotic degradation

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Product

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Three-Dimensional Multihierarchical Hexagonal/Cubic ZnIn₂S₄ S-Scheme Heterophase Junction for Superior Photocatalysis

Three-Dimensional Multihierarchical Hexagonal/Cubic ZnIn₂S₄ S-Scheme Heterophase Junction for Superior Photocatalysis

Solid-waste-recycled CuO/C₃N₄ S-scheme heterojunctions for efficient photocatalytic antibiotic degradation