Recent advances in CdS heterojunctions: morphology, synthesis, performances and prospects

Wang, Wenchao; Xue, Jing; Liu, Jixian

doi:10.1039/d4ta01260g

J. Mater. Chem. A

2024

DOI: 10.1039/d4ta01260g

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Recent advances in CdS heterojunctions: morphology, synthesis, performances and prospects

Wenchao Wang,

Jing Xue,

Jixian Liu

Abstract: Hydrogen evolution technology by photocatalysts has shown broad prospects in solving the global energy crisis and environmental pollution problems. Cadmium sulfide (CdS) heterojunctions have been concerned as a promising photocatalyst...

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Cited by 11 publications

References 146 publications

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Visible Light‐Driven Hypochlorous Acid Synthesis Using a Sustainable and Cost‐Effective WO₃/CdS Photocatalyst without Precious Metals

Wang,

Han,

et al. 2024

ChemSusChem

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Compared with traditional electrolytic technology, directly using photocatalytic materials to produce hypochlorous acid from chlorine‐containing water undoubtedly has stronger low‐carbon and environmentally‐friendly characteristics. However, currently reported materials with photocatalytic chlorine production performance require precious metal Pt for catalysis, which undoubtedly greatly increases production costs. Therefore, developing new types of non‐precious metal‐based photocatalytic materials for efficient hypochlorous acid synthesis has significant implications. In this study, we demonstrate a novel breakthrough by showing that the WO3/CdS with a Z‐scheme structure effectively generated 3.54 mg/L of free chlorine in a 0.5 M NaCl solution, while also exhibiting spectral bactericidal and algal inhibition properties. The Z‐scheme structure can effectively prevent carrier recombination and improve photocatalytic efficiency. Therefore, this research provides a novel approach to photocatalytic antifouling and holds significant implications for the application of photocatalytic technology in the marine antifouling industry.

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Visible Light‐Driven Hypochlorous Acid Synthesis Using a Sustainable and Cost‐Effective WO₃/CdS Photocatalyst without Precious Metals

Wang,

Han,

et al. 2024

ChemSusChem

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Heterostructuring Uniform 2D CdS on Ru/Ti₃C₂‐TiO₂ via In situ Oxidized Ru‐Loaded MXene for Boosting Photocatalytic H₂ Production

Liu,

Han,

Qian

et al. 2024

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Building heterojunctions and exposing more catalytic active sites are effective strategies to enhance the photocatalytic hydrogen evolution activity. Herein, TiO2 nanosheets are oxidized in situ on Ru‐loaded MXene as carriers and subsequently loaded with uniform 2D CdS via hydrothermal method to obtain 2D Ru/Ti3C2‐TiO2/CdS composite photocatalysts that integrate heterojunctions and cocatalysts. The formation of heterojunction between CdS and TiO2 is conducive to promoting the separation and transfer of photogenerated charges, simultaneously, Ru/Ti3C2 with the fully exposed Ru and Ti3C2 can act as effective active sites of photocatalytic hydrogen production reaction. The composite photocatalyst exhibits an improved hydrogen production rate with 5479 µmol g−1 h−1, which is 5, 3, and four times more than that of pristine CdS, CdS loaded Ti3C2‐TiO2 and CdS loaded Ru‐TiO2 respectively. The results reveal that the notable enhancement in performance can primarily be ascribed to the introduction of the TiO2/CdS heterojunction and the efficient cocatalysts of Ru/Ti3C2. Moreover, the 2D Ti3C2 with high conductivity as carriers can increase charge transfer, and its 2D structure can serve as a template for growing 2D photocatalysts with higher activity. The interface engineering with multiple interfaces can offer novel insights for the advancement of efficient hydrogen evolution reaction catalysts.

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Emerging Trends in CdS‐Based Nanoheterostructures: From Type‐II and Z‐Scheme toward S‐Scheme Photocatalytic H₂ Production

Ullah,

Zhao,

Qin

et al. 2024

The Chemical Record

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Cadmium sulfide (CdS) based heterojunctions, including type‐II, Z‐scheme, and S‐scheme systems emerged as promising materials for augmenting photocatalytic hydrogen (H2) generation from water splitting. This review offers an exclusive highlight of their fundamental principles, synthesis routes, charge transfer mechanisms, and performance properties in improving H2 production. We overview the crucial roles of Type‐II heterojunctions in enhancing charge separation, Z‐scheme heterojunctions in promoting redox potentials to reduce electron‐hole (e−/h+) pairs recombination, and S‐scheme heterojunctions in combining the merits of both type‐II and Z‐scheme frameworks to obtain highly efficient H2 production. The importance of this review is demonstrated by its thorough comparison of these three configurations, presenting valuable insights into their special contributions and capability for augmenting photocatalytic H2 activity. Additionally, key challenges and prospects in the practical applications of CdS‐based heterojunctions are addressed, which provides a comprehensive route for emerging research in achieving sustainable energy goals.

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Recent advances in CdS heterojunctions: morphology, synthesis, performances and prospects

Abstract: Hydrogen evolution technology by photocatalysts has shown broad prospects in solving the global energy crisis and environmental pollution problems. Cadmium sulfide (CdS) heterojunctions have been concerned as a promising photocatalyst...

Cited by 11 publications

References 146 publications

Visible Light‐Driven Hypochlorous Acid Synthesis Using a Sustainable and Cost‐Effective WO₃/CdS Photocatalyst without Precious Metals

Visible Light‐Driven Hypochlorous Acid Synthesis Using a Sustainable and Cost‐Effective WO₃/CdS Photocatalyst without Precious Metals

Heterostructuring Uniform 2D CdS on Ru/Ti₃C₂‐TiO₂ via In situ Oxidized Ru‐Loaded MXene for Boosting Photocatalytic H₂ Production

Emerging Trends in CdS‐Based Nanoheterostructures: From Type‐II and Z‐Scheme toward S‐Scheme Photocatalytic H₂ Production

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Recent advances in CdS heterojunctions: morphology, synthesis, performances and prospects

Abstract: Hydrogen evolution technology by photocatalysts has shown broad prospects in solving the global energy crisis and environmental pollution problems. Cadmium sulfide (CdS) heterojunctions have been concerned as a promising photocatalyst...

Cited by 11 publications

References 146 publications

Visible Light‐Driven Hypochlorous Acid Synthesis Using a Sustainable and Cost‐Effective WO3/CdS Photocatalyst without Precious Metals

Visible Light‐Driven Hypochlorous Acid Synthesis Using a Sustainable and Cost‐Effective WO3/CdS Photocatalyst without Precious Metals

Heterostructuring Uniform 2D CdS on Ru/Ti3C2‐TiO2 via In situ Oxidized Ru‐Loaded MXene for Boosting Photocatalytic H2 Production

Emerging Trends in CdS‐Based Nanoheterostructures: From Type‐II and Z‐Scheme toward S‐Scheme Photocatalytic H2 Production

Contact Info

Product

Resources

About

Visible Light‐Driven Hypochlorous Acid Synthesis Using a Sustainable and Cost‐Effective WO₃/CdS Photocatalyst without Precious Metals

Visible Light‐Driven Hypochlorous Acid Synthesis Using a Sustainable and Cost‐Effective WO₃/CdS Photocatalyst without Precious Metals

Heterostructuring Uniform 2D CdS on Ru/Ti₃C₂‐TiO₂ via In situ Oxidized Ru‐Loaded MXene for Boosting Photocatalytic H₂ Production

Emerging Trends in CdS‐Based Nanoheterostructures: From Type‐II and Z‐Scheme toward S‐Scheme Photocatalytic H₂ Production