Microwave-assisted synthesis and characterization of BiOI/BiF3 p–n heterojunctions and its enhanced photocatalytic properties

Lu, Huabao; Ju, Tianzhen; She, Houde; Wang, Lei; Wang, Qizhao

doi:10.1007/s10854-020-03939-x

Cited by 11 publications

(1 citation statement)

References 32 publications

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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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