Microwave-assisted synthesis of Z-scheme CdS/BiOBr heterojunction for improved visible-light photocatalytic degradation of organic dyes

Hu, Hanmei; Wang, Tao; Peng, Lulu; Ling, Xuemei; He, Yunyun; Sun, Min; Yang, Ming‐Chang; Deng, Chonghai

doi:10.1007/s00339-022-05595-w

Cited by 6 publications

(3 citation statements)

References 51 publications

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“…To date, without considering g-C 3 N 4 , TiO 2 , 4 ZnO, 31 CdS, 36 etc. have been widely regarded as the most commonly used photocatalysts, as shown in Fig.…”

Section: G-c3n4 As a Type Of Promising And Green Photocatalystmentioning

confidence: 99%

Construction of a g-C₃N₄-driven photocatalytic system for boosted biomass-derived alcohol oxidation: a promising route towards sustainable biomass valorization

Cui

Lü

Guo

et al. 2023

Catal. Sci. Technol.

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“…To date, without considering g-C 3 N 4 , TiO 2 , 4 ZnO, 31 CdS, 36 etc. have been widely regarded as the most commonly used photocatalysts, as shown in Fig.…”

Section: G-c3n4 As a Type Of Promising And Green Photocatalystmentioning

confidence: 99%

Construction of a g-C₃N₄-driven photocatalytic system for boosted biomass-derived alcohol oxidation: a promising route towards sustainable biomass valorization

Cui

Lü

Guo

et al. 2023

Catal. Sci. Technol.

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“…Finally, the tiny island-like 0D CdS nanograins are anchored on the surface of 2D SnS 2 NSs through the Ostwald ripening process. The whole formation procedure of binary CdS/SnS 2 nanojunctions can be expounded in figure 1, which is analogous to the creation of binary 0D/2D CdS/BiOBr and CuO/BiOBr nanostructures [25,26].…”

Section: Growth Mechanismmentioning

confidence: 99%

Constructing a noble-metal-free 0D/2D CdS/SnS₂ heterojunction for efficient visible-light-driven photocatalytic pollutant degradation and hydrogen generation

Hu,

He,

et al. 2023

Nanotechnology

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Semiconductor photocatalysis has attracted a wide attention for its outstanding capacity on water purification and energy conversion. Herein, a noble-metal-free nanoheterojunction by planting zero-dimensional (0D) CdS nanograins with 10-20 nm in size on the surface of 2D SnS2 nanosheets (NSs) has been created using an in-situ chemical bathing deposition process, where SnS2 NSs have the average diameters of 400 nm as well as thicknesses of less than 20 nm. The possible formation mechanism of CdS/SnS2 (CS/SS) heterogeneous nanostructure is elaborated. The catalytic activities over CS/SS nanocomposites for the photodegradation of organic dye and hydrogen evolution from photolysis water splitting are examined under visible light irradiation. The apparent rate constant (k) of the optimal CS/SS-3 composite in decontamination of methylene blue (MB) is up to 3.34 and 1.87 times as high as that of pristine SnS2 and pure CdS counterparts, respectively. Consistently, the optimized CS/SS-3 sample achieves the highest photocatalytic hydrogen production rate, being 10.3 and 5.7 folds higher than that of solo SnS2 and CdS panels, respectively. The boosted photocatalytic capacities of CdS/SnS2 heterostructures is essentially attributed to the formation of the closely interfacial incorporation between CdS and SnS2 semiconductors, resulting in the effective charge transportation and spatial separation for the photoinduced electron-hole pairs. Furthermore, the traditional type-II charge transfer pathway is proposed based on the perfect band structure and the free radical experiment results.

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“…In addition, microwave synthesis has the advantages of a rapid temperature rise, uniform heat transfer, high controllability, and quick reaction rate [28,29]. The microwave synthesis has been used for the preparation of heterojunction materials, such as BiOI/BiF 3 [30], CdS/BiOBr [31], La(OH) 3 /BiOCl [32], BiVO 4 /WO 3 [33], and so on. Sriram et al [34] used a hydrothermalmicrowave synthesis to prepare a MoS 2 /BiVO 4 modified electrode, and then measure 3-nitro-L-tyrosine in a biological media with this electrode without any pretreatment.…”

Section: Introductionmentioning

confidence: 99%

Microwave-Assisted Synthesis of MoS2/BiVO4 Heterojunction for Photocatalytic Degradation of Tetracycline Hydrochloride

et al. 2023

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Compared with traditional hydrothermal synthesis, microwave-assisted synthesis has the advantages of being faster and more energy efficient. In this work, the MoS2/BiVO4 heterojunction photocatalyst was synthesized by the microwave-assisted hydrothermal method within 30 min. The morphology, structure and chemical composition were characterized by X-ray diffraction (XRD), Raman, X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), and high-resolution transmission electron microscopy (HRTEM). The results of characterizations demonstrated that the synthesized MoS2/BiVO4 heterojunction was a spherical structure with dimensions in the nanorange. In addition, the photocatalytic activity of the samples was investigated by degrading tetracycline hydrochloride (TC) under visible light irradiation. Results indicated that the MoS2/BiVO4 heterojunction significantly improved the photocatalytic performance compared with BiVO4 and MoS2, in which the degradation rate of TC (5 mg L−1) by compound where the mass ratio of MoS2/BiVO4 was 5 wt% (MB5) was 93.7% in 90 min, which was 2.36 times of BiVO4. The active species capture experiments indicated that •OH, •O2− and h+ active species play a major role in the degradation of TC. The degradation mechanism and pathway of the photocatalysts were proposed through the analysis of the band structure and element valence state. Therefore, microwave technology provided a quick and efficient way to prepare MoS2/BiVO4 heterojunction photocatalytic efficiently.

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Microwave-assisted synthesis of Z-scheme CdS/BiOBr heterojunction for improved visible-light photocatalytic degradation of organic dyes

Cited by 6 publications

References 51 publications

Construction of a g-C₃N₄-driven photocatalytic system for boosted biomass-derived alcohol oxidation: a promising route towards sustainable biomass valorization

Construction of a g-C₃N₄-driven photocatalytic system for boosted biomass-derived alcohol oxidation: a promising route towards sustainable biomass valorization

Constructing a noble-metal-free 0D/2D CdS/SnS₂ heterojunction for efficient visible-light-driven photocatalytic pollutant degradation and hydrogen generation

Microwave-Assisted Synthesis of MoS2/BiVO4 Heterojunction for Photocatalytic Degradation of Tetracycline Hydrochloride

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Microwave-assisted synthesis of Z-scheme CdS/BiOBr heterojunction for improved visible-light photocatalytic degradation of organic dyes

Cited by 6 publications

References 51 publications

Construction of a g-C3N4-driven photocatalytic system for boosted biomass-derived alcohol oxidation: a promising route towards sustainable biomass valorization

Construction of a g-C3N4-driven photocatalytic system for boosted biomass-derived alcohol oxidation: a promising route towards sustainable biomass valorization

Constructing a noble-metal-free 0D/2D CdS/SnS2 heterojunction for efficient visible-light-driven photocatalytic pollutant degradation and hydrogen generation

Microwave-Assisted Synthesis of MoS2/BiVO4 Heterojunction for Photocatalytic Degradation of Tetracycline Hydrochloride

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Construction of a g-C₃N₄-driven photocatalytic system for boosted biomass-derived alcohol oxidation: a promising route towards sustainable biomass valorization

Construction of a g-C₃N₄-driven photocatalytic system for boosted biomass-derived alcohol oxidation: a promising route towards sustainable biomass valorization

Constructing a noble-metal-free 0D/2D CdS/SnS₂ heterojunction for efficient visible-light-driven photocatalytic pollutant degradation and hydrogen generation