Facile preparation of BiVO4/FeVO4 heterostructure for efficient water-splitting applications

Li, Ning; Wu, Xiaofeng; Wang, Meng; Huang, Keke; He, Jingjing; Ma, Wei; Chen, Huanwen; Li, Yue

doi:10.1016/j.ijhydene.2019.07.063

Cited by 36 publications

(23 citation statements)

References 31 publications

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“…Table 1S displays comparison between the photocatalytic activity of our samples that obtained in this work and that found in other literatures [21,22,24,30,42,44,46,[58][59][60][61][62]. As shown in Table 1S the 10%RGO/Fe 3 O 4 -FeVO 4 showed the highest photoactivity for photodegradation of organic pollutants under solar light.…”

Section: ( )supporting

confidence: 51%

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One-Step Preparation of RGO/Fe3O4-Fevo4 Nanocomposites As Highly Effective Photocatalysts Under Natural Sunlight Illumination

Alsulami

Rajeh

Mannaa

et al. 2022

Preprint

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The study used a one-step hydrothermal method to prepare Fe3O4-FeVO4 and xRGO/Fe3O4-FeVO4 nanocomposites. XRD, TEM, EDS, XPS, DRS, and PL techniques were used to examine the structurally and morphologically properties of the prepared samples. The XRD results appeared that the Fe3O4-FeVO4 has a triclinic crystal structure. Under hydrothermal treatment, (GO) was effectively reduced to (RGO) as illustrated by XRD and XPS results. UV-Vis analysis revealed that the addition of RGO enhanced the absorption in the visible region and narrowed the band gap energy. The photoactivities of the prepared samples were evaluated by degrading methylene blue (MB), phenol and brilliant green (BG) under sunlight illumination. As indicated by all the nanocomposites, photocatalytic activity was higher than the pure Fe3O4-FeVO4 photocatalyst, and the highest photodegradation efficiency of MB and phenol was shown by the 10%RGO/Fe3O4-FeVO4. In addition, the study examined the mineralization (TOC), photodegradation process, and photocatalytic reaction kinetics of MB and phenol.

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Section: ( )supporting

confidence: 51%

“…However, FeVO 4 gave low photocatalytic activity, low optical absorption and poor transport of photogenerated charges which limited its applications [12,13]. Many novel composites are created as a result of this combining procedure [14]. Fe 3 O 4 -FeVO 4 in particular stands out for its broad range of bene cial properties.…”

Section: Introductionmentioning

confidence: 99%

One-Step Preparation of RGO/Fe3O4-Fevo4 Nanocomposites As Highly Effective Photocatalysts Under Natural Sunlight Illumination

Alsulami

Rajeh

Mannaa

et al. 2022

Preprint

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“…Using hole-scavenging Na 2 SO 3 in the electrolyte, rather than relying on water oxidation, further enhanced the PCD to 3.3 mA cm −2 (Figure 9d). [91] Another example of a type II heterostructure is the combination of BiVO 4 /FeVO 4 deposited by Li et al [100] This film had a small grain size (Figure 9e) with a thickness of ≈400 nm (inset of Figure 9e). Here, the favorable band positions (Figure 9f) allow excited photogenerated electrons of the FeVO 4 conduction band to be injected into the conduction band of BiVO 4 , thereby enhancing the photocurrent of the sample.…”

confidence: 99%

“…Reproduced with permission. [ 100 ] Copyright 2019, Elsevier. Surface modification by electrospray i) SEM images (inset image shows Pd nanoparticles), and j) deposition‐temperature dependent PCD of Pd decorated TiO 2 .…”

Section: E‐spray Deposited Materials For Energy Conversion and Storagmentioning

confidence: 99%

“…The improvement in PEC performance is much more significant than in the single layers of BiVO 4 or FeVO 4 (Figure 9g), and the thickness variation of BiVO 4 and FeVO 4 showed that a 1:1 ratio resulted in enhanced PCD (Figure 9h). [ 100 ] However, the long deposition time might have enhanced the porosity of films and PCD. In this case, EG was used as a solvent, and the substrate temperature was 350 °C, which is suitable to produce porous films at higher deposition times.…”

Section: E‐spray Deposited Materials For Energy Conversion and Storagmentioning

confidence: 99%

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Electrostatically Sprayed Nanostructured Electrodes for Energy Conversion and Storage Devices

Joshi

Samuel

Kim

et al. 2021

Adv Funct Materials

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The electrostatic spray method is a promising nonvacuum technique for efficient deposition of thin films from solutions or dispersions. The multitude of electrostatic spray process parameters, including surface tension, viscosity, and conductivity of the liquid, applied voltage, nozzle size, and flow rate, make electrostatic spray deposition very versatile for the morphological engineering of nanostructured films. The current state-of-the-art in electrostatic spraying can produce exceptional morphologies. Such tailoring of morphologies is notably useful in electrochemical applications where high electrolyte-accessible surface area often improves performance. Interesting morphologies of metal oxides and their composites are highlighted, including nanopillars, nanoferns, and porous microspheres produced by electrostatic spraying to enhance energy conversion and storage performance. The physics associated with the electrostatic spray process and morphology control using it are also presented. The manuscript highlights the potential of electrospray processing for producing thin films of controlled microstructure, from ultrasmooth layers in organic photovoltaics and perovskite photovoltaics to hierarchical nanostructured films for anodes and photoanodes. It aims to help researchers appreciate essential aspects of electrostatic spray deposition efficiency, process control, and morphology engineering for energy conversion (e.g., solar cell, fuel cell, and photoelectrochemical cell) and energy storage (e.g., lithium-ion battery and supercapacitor) electrodes.

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Surface Engineering of BiVO₄ Photoanodes for Photoelectrochemical Water Splitting: Recent Advances

Arunachalam,

Amer,

Al‐Mayouf

et al. 2024

ChemCatChem

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Energy demand worldwide demands clean, cheap, and renewable energy. Through the use of photoelectrochemical (PEC) conversion, solar energy can be transformed into chemical energy. Bismuth vanadate (BiVO4), a material exhibiting visible light activity, favourable conduction band edge energies, and ease of synthesis, has become increasingly popular in recent years. In BiVO4, charge carriers recombine rapidly, which adversely affects the PEC performance and stability. There have been several strategies developed to mitigate these deficiencies, including novel heterojunctions, doping with metals, coupling with cocatalysts, interface modification and modifying morphology. To achieve the best results, it is required to develop PEC devices with exceptional cost‐to‐efficiency ratios and long‐term durability. This review also examines novel yet commercially viable applications for BiVO4‐based photoanodes. Lastly, we discuss the challenges and perspectives facing PEC water splitting systems based on BiVO4.

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Facile preparation of BiVO4/FeVO4 heterostructure for efficient water-splitting applications

Cited by 36 publications

References 31 publications

One-Step Preparation of RGO/Fe3O4-Fevo4 Nanocomposites As Highly Effective Photocatalysts Under Natural Sunlight Illumination

One-Step Preparation of RGO/Fe3O4-Fevo4 Nanocomposites As Highly Effective Photocatalysts Under Natural Sunlight Illumination

Electrostatically Sprayed Nanostructured Electrodes for Energy Conversion and Storage Devices

Surface Engineering of BiVO₄ Photoanodes for Photoelectrochemical Water Splitting: Recent Advances

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Facile preparation of BiVO4/FeVO4 heterostructure for efficient water-splitting applications

Cited by 36 publications

References 31 publications

One-Step Preparation of RGO/Fe3O4-Fevo4 Nanocomposites As Highly Effective Photocatalysts Under Natural Sunlight Illumination

One-Step Preparation of RGO/Fe3O4-Fevo4 Nanocomposites As Highly Effective Photocatalysts Under Natural Sunlight Illumination

Electrostatically Sprayed Nanostructured Electrodes for Energy Conversion and Storage Devices

Surface Engineering of BiVO4 Photoanodes for Photoelectrochemical Water Splitting: Recent Advances

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Product

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Surface Engineering of BiVO₄ Photoanodes for Photoelectrochemical Water Splitting: Recent Advances