BiVO4 microstructures with various morphologies: Synthesis and characterization

Wu, Min; Jing, Qifeng; Feng, Xuezhen; Chen, Limiao

doi:10.1016/j.apsusc.2017.07.299

Cited by 67 publications

(28 citation statements)

References 45 publications

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“…Raman characterization is performed to further investigate the structure of the chainlike microstructures. As shown in Figure S2a, the weak and broad peaks at 119, 202, and 818 cm −1 can be assigned to the typical vibrations of BiVO 4 , 33 confirming the formation of amorphous BiVO 4 in the products. All of these results manifest that asobtained products consist of crystalline Bi and amorphous BiVO 4 .…”

Section: Resultsmentioning

confidence: 64%

Bi/BiVO₄ Chainlike Hollow Microstructures: Synthesis, Characterization, and Application as Visible-Light-Active Photocatalysts

Jing

Feng

Zhao

et al. 2018

ACS Appl. Nano Mater.

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Bi/BiVO 4 microstructures with novel hollow chainlike morphology were successfully fabricated for the first time, and their application as photocatalyst is explored. Composites composed of metallic Bi and amorphous BiVO 4 (denoted as Bi/a-BiVO 4 ) are first prepared through a simple solvothermal route using ethylene glycol as solvent and then hydrothermally treated in a basic solution to crystallize BiVO 4 . The Bi content in the Bi/BiVO 4 microstructures can be facilely adjusted by changing the molar ratio of Bi 3+ to V 5+ in the reaction system. The photocatalytic activity of the Bi/BiVO 4 microstructures is assessed by photodegradation of rhodamine B (RhB) under visible-light illumination. The Bi/BiVO 4 microstructures exhibit an obviously improved photocatalytic performance compared to the BiVO 4 and Bi. The synergistic effects of BiVO 4 and Bi may contribute to the improved photocatalytic activity. The present research may provide a new approach to design and fabricate BiVO 4 -based photocatalyst with high photocatalytic activity.

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Section: Resultsmentioning

confidence: 64%

Bi/BiVO₄ Chainlike Hollow Microstructures: Synthesis, Characterization, and Application as Visible-Light-Active Photocatalysts

Jing

Feng

Zhao

et al. 2018

ACS Appl. Nano Mater.

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“… 31 It is well known that the shape and size play a significant role, as broadly described in the literature. 32 − 35 The photocatalytic properties are also strongly dependent on the crystalline structure. Generally, the monoclinic scheelite BiVO 4 (m-BiVO 4 ) is considered to be more active than the other two tetragonal phases.…”

Section: Introductionmentioning

confidence: 99%

Insight into Potassium Vanadates as Visible-Light-Driven Photocatalysts: Synthesis of V(IV)-Rich Nano/Microstructures for the Photodegradation of Methylene Blue

et al. 2022

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Photocatalysis is regarded as a promising tool for wastewater remediation. In recent years, many studies have focused on investigating novel photocatalysts driven by visible light. In this study, K 2 V 6 O 16 · n H 2 O nanobelts and KV 3 O 8 microplatelets were synthesized and investigated as photocatalysts. Samples were obtained via the facile method based on liquid-phase exfoliation with ion exchange. By changing the synthesis temperature (20–80 °C), different compositions, morphologies, and V 4+ /V 5+ ratios were obtained and investigated as photocatalysts for organic dye degradation. Potassium vanadates’ structural, morphological, and optical properties were characterized using X-ray diffraction(XRD), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), Physical Property Measurement System (PPMS), thermogravimetric analysis (TGA) with mass spectrometry (MS), N 2 adsorption, scanning electron microscopy (SEM), photoluminescence (PL), and UV–vis diffuse reflectance spectroscopy (DRS). Synthesized K 2 V 6 O 16 · n H 2 O and KV 3 O 8 showed an efficient absorption in the visible wavelength region with a narrow band gap energy of 1.80 and 1.91 eV, respectively. Their photocatalytic activity was evaluated by the degradation of methylene blue (MB) under simulated solar light illumination. The KV 3 O 8 microplatelets exhibited the greatest photocatalytic activity, resulting in more than 90% degradation of the dye within the first 30 min. It is suggested that the observed excellent photocatalytic performance is attributed to the high content of V 4+ species. Furthermore, the influence of active species was investigated, and the mechanism responsible for the photodegradation of the MB dye was discussed for the first time for potassium vanadates.

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“…For BiVO 4 , n is always 1. 30 As shown in Fig. 8b, the band gap energy of BiVO 4 can be estimated from the relationship between ( αhν ) 2 and photon energy ( hν ).…”

Section: Resultsmentioning

confidence: 99%

Structure, morphology and photocatalytic performance of europium-doped bismuth vanadate

Zhang

Huang

et al. 2022

Inorg. Chem. Front.

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BiVO4 microstructures with various morphologies: Synthesis and characterization

Cited by 67 publications

References 45 publications

Bi/BiVO₄ Chainlike Hollow Microstructures: Synthesis, Characterization, and Application as Visible-Light-Active Photocatalysts

Bi/BiVO₄ Chainlike Hollow Microstructures: Synthesis, Characterization, and Application as Visible-Light-Active Photocatalysts

Insight into Potassium Vanadates as Visible-Light-Driven Photocatalysts: Synthesis of V(IV)-Rich Nano/Microstructures for the Photodegradation of Methylene Blue

Structure, morphology and photocatalytic performance of europium-doped bismuth vanadate

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BiVO4 microstructures with various morphologies: Synthesis and characterization

Cited by 67 publications

References 45 publications

Bi/BiVO4 Chainlike Hollow Microstructures: Synthesis, Characterization, and Application as Visible-Light-Active Photocatalysts

Bi/BiVO4 Chainlike Hollow Microstructures: Synthesis, Characterization, and Application as Visible-Light-Active Photocatalysts

Insight into Potassium Vanadates as Visible-Light-Driven Photocatalysts: Synthesis of V(IV)-Rich Nano/Microstructures for the Photodegradation of Methylene Blue

Structure, morphology and photocatalytic performance of europium-doped bismuth vanadate

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Bi/BiVO₄ Chainlike Hollow Microstructures: Synthesis, Characterization, and Application as Visible-Light-Active Photocatalysts

Bi/BiVO₄ Chainlike Hollow Microstructures: Synthesis, Characterization, and Application as Visible-Light-Active Photocatalysts