Study of the different morphologies of Zn0.5Cd0.5S for photocatalytic H2 production

Ren, Wei; Si, Ruiru; Wang, Jiahui; Yang, Yang; Zheng, Xiuzhen; Chen, Shifu

doi:10.1039/d3va00042g

Environ. Sci.: Adv.

2023

DOI: 10.1039/d3va00042g

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Study of the different morphologies of Zn_0.5Cd_0.5S for photocatalytic H₂ production

Wei Ren

Ruiru Si

Jiahui Wang

et al.

Abstract: As the catalytic reaction usually occurs on the surface of the catalysts, regulating their morphology may largely affect the photocatalytic properties. Zn0.5Cd0.5S with the shape of nanoparticles, nanorods, microsheets and...

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2024

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Cited by 2 publications

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Dual-Defect Modified 2D/2D TiO₂/g-C₃N₄ Heterojunction for Photocatalytic H₂ Production

Wang,

Li,

et al. 2024

Crystal Growth & Design

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In order to solve the current energy and environmental crisis, the design of efficient catalyst materials is a highly effective solution. In this paper, the photocatalytic performance of TiO 2 /g-C 3 N 4 composites was improved by regulating their microstructure, such as by constructing nanosheet structures, defect sites, and contact interfaces. Although TiO 2 had limited activity in H 2 production under visible light irradiation, it could serve as an electron acceptor of g-C 3 N 4 , and it greatly increased the photocatalytic activity of g-C 3 N 4 . The optimal TiO 2 /g-C 3 N 4 composite showed good photocatalytic performance (436.3 μmol h −1 g −1 ), which was 23.8 and 3 times that of T400 and g-C 3 N 4 , respectively. The increased photocatalytic activity of the TiO 2 /g-C 3 N 4 composite could be attributed to the higher separation rate of the photogenerated charge carriers (PCCs), more active sites for the reaction, and a lower energy barrier than that of g-C 3 N 4 . Through many characterization and testing technologies, this work deeply studies the relationship between the fine structure and reaction mechanism of 2D/2D TiO 2 /g-C 3 N 4 , providing a new direction and understanding for the design and development of 2D materials with highly efficient activity.

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Dual-Defect Modified 2D/2D TiO₂/g-C₃N₄ Heterojunction for Photocatalytic H₂ Production

Wang,

Li,

et al. 2024

Crystal Growth & Design

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Construction of Bi–Bi₂S₃/Zn_0.5Cd_0.5S tubular heterojunction for enhancing photocatalytic H₂ production

Wang,

Yang,

et al. 2024

J Am Ceram Soc.

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Photocatalytic H2 production is considered as a promising method to solve the energy crisis, and how to increase the photocatalytic efficiency is an urgent issues that need to be addressed. In this work, Bi–Bi2S3/Zn0.5Cd0.5S (BBS/ZCS) composites were successfully prepared by a simple hydrothermal method. By electrostatic attraction, Zn0.5Cd0.5S (ZCS) nanoparticles were loaded on the surface of Bi–Bi2S3 (BBS) microtubes, facilitating the formation of heterojunctions. Although BBS showed little activity in H2 production, it largely enhanced the photocatalytic performance of ZCS. After optimizing the amount of BBS cocatalyst, it was found that 10% BBS/ZCS had the best H2 production performance of 10.18 mmol g−1 h−1, which was 30 times higher than that of ZCS (0.34 mmol g−1 h−1). The enhanced photocatalytic performance could be ascribed to the formation of interfacial heterojunctions, as the photogenerated electrons of ZCS migrate to the Bi0 while photogenerated holes transfer to the valence band (VB) of Bi2S3. With BBS as the bridge to accept the photogenerated electrons and holes of ZCS, the fast recombination of photogenerated charge carriers (PCCs, including photogenerated electrons and holes) for ZCS was improved. This work not only promotes the separation of PCCs, but provides a new idea for the design of catalysts.

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Study of the different morphologies of Zn_0.5Cd_0.5S for photocatalytic H₂ production

Abstract: As the catalytic reaction usually occurs on the surface of the catalysts, regulating their morphology may largely affect the photocatalytic properties. Zn0.5Cd0.5S with the shape of nanoparticles, nanorods, microsheets and...

Cited by 2 publications

References 49 publications

Dual-Defect Modified 2D/2D TiO₂/g-C₃N₄ Heterojunction for Photocatalytic H₂ Production

Dual-Defect Modified 2D/2D TiO₂/g-C₃N₄ Heterojunction for Photocatalytic H₂ Production

Construction of Bi–Bi₂S₃/Zn_0.5Cd_0.5S tubular heterojunction for enhancing photocatalytic H₂ production

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Study of the different morphologies of Zn0.5Cd0.5S for photocatalytic H2 production

Abstract: As the catalytic reaction usually occurs on the surface of the catalysts, regulating their morphology may largely affect the photocatalytic properties. Zn0.5Cd0.5S with the shape of nanoparticles, nanorods, microsheets and...

Cited by 2 publications

References 49 publications

Dual-Defect Modified 2D/2D TiO2/g-C3N4 Heterojunction for Photocatalytic H2 Production

Dual-Defect Modified 2D/2D TiO2/g-C3N4 Heterojunction for Photocatalytic H2 Production

Construction of Bi–Bi2S3/Zn0.5Cd0.5S tubular heterojunction for enhancing photocatalytic H2 production

Contact Info

Product

Resources

About

Study of the different morphologies of Zn_0.5Cd_0.5S for photocatalytic H₂ production

Dual-Defect Modified 2D/2D TiO₂/g-C₃N₄ Heterojunction for Photocatalytic H₂ Production

Dual-Defect Modified 2D/2D TiO₂/g-C₃N₄ Heterojunction for Photocatalytic H₂ Production

Construction of Bi–Bi₂S₃/Zn_0.5Cd_0.5S tubular heterojunction for enhancing photocatalytic H₂ production