Synthesis of butterfly-like BiVO 4 /RGO nanocomposites and their photocatalytic activities

Zhang, Liangliang; Wang, Aolan; Zhu, Nan; Liang, Yan; Wu, Wei

doi:10.1016/j.cjche.2017.09.007

Cited by 16 publications

(5 citation statements)

References 44 publications

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“…2S ), four peaks appear at 284.59, 286.28, 288.33 and 289.06 eV are attributed to sp 2 and sp 3 carbon 20 , 42 , 43 . However, positional shift of the peaks located at 288.33 and 289.06 eV to 287.84 and 288.91 eV in the 10%RGO/Fe 3 O 4 –FeVO 4 were observed and the intensity of peaks that attributed to oxygenated groups were decreased sharply which indicates the effective reduction of GO to RGO 20 , 44 . Based on the results above the shifting in the peaks position of Fe 2 p , V 2 p and O1 s in the 10%RGO/Fe 3 O 4 –FeVO 4 attribute to the strong interactions between Fe 3 O 4 –FeVO 4 and RGO in the nanocomposites 2 , 23 .…”

Section: Resultsmentioning

confidence: 95%

One-step preparation of RGO/Fe3O4–FeVO4 nanocomposites as highly effective photocatalysts under natural sunlight illumination

Alsulami

Rajeh

Mannaa

et al. 2022

Sci Rep

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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 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: Resultsmentioning

confidence: 95%

One-step preparation of RGO/Fe3O4–FeVO4 nanocomposites as highly effective photocatalysts under natural sunlight illumination

Alsulami

Rajeh

Mannaa

et al. 2022

Sci Rep

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“…Such materials show promise in treating real water samples that often contain multiple pollutant species, making them a valuable tool for achieving environmental sustainability. [310][311][312][313][314][315][316][317][318][319][320][321][322][323][324][325][326] Fig. 26 shows examples of the hypothesised LMCT mechanism, which show simultaneous 4-CP oxidation and Cr(VI) reduction over a Nb 2 O 5 /GR composite and a glucose/rGO complex, respectively.…”

Section: Removal Of Heavy Metalsmentioning

confidence: 99%

Advanced graphene-based (photo & electro) catalysts for sustainable & clean energy technologies

Akhter,

Hussain,

Maktedar

2024

New J. Chem.

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“…[ 3 , 22 , 23 ] The photocatalytic efficiency of m‐BiVO 4 is confined because of its low charge transportation and fewer surface absorption phenomena. [ 24 ] BiVO 4 has a centrosymmetric structure and is not piezoresponsive. [ 25 , 26 ] Disrupted bonding on the surface and discontinuity in microstructure induces internal stress relaxation in BiVO 4 imparting flexoelectric effect in the material.…”

Section: Introductionmentioning

confidence: 99%

Sonophotocatalytic Dye Degradation Using rGO‐BiVO₄ Composites

et al. 2022

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Reduced graphene oxide (rGO)/bismuth vanadate BiVO 4 composites are fabricated with varied rGO amounts (0, 1, 2, and 3 wt%) through the synergetic effects of ultrasonication, photoinduced reduction, and hydrothermal methods, and the materials are tested as tools for sonophotocatalytic methylene blue (MB) dye degradation. The effect of rGO content on the sonophotocatalytic dye degradation capabilities of the composites are explored. Characterization of the proposed materials is done through transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transformation infrared spectroscopy as well as scanning electron microscopy. The coexistence of BiVO 4 and rGO is confirmed using Raman spectroscopy and XRD. TEM confirms the existence of interfaces between rGO and BiVO 4 and XPS affirms the existence of varied elemental oxidation states. In order to investigate the charge carriers transportation, time-dependent photocurrent responses of BiVO 4 and 2 wt%-rGO/BiVO 4 are done under visible light irradiation. The sonophotocatalytic MB dye degradation in an aqueous medium displays promising enhancement with rGO doping in rGO/BiVO 4 composite. The 2 wt%-rGO/BiVO 4 sample exhibits ≈52% MB dye degradation efficiency as compared to pure BiVO4 (≈25%) in 180 min of the sonophotocatalysis experiment. Phytotoxicity analysis through germination index is done using vigna radiata seeds.

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Synthesis of butterfly-like BiVO 4 /RGO nanocomposites and their photocatalytic activities

Cited by 16 publications

References 44 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

Advanced graphene-based (photo & electro) catalysts for sustainable & clean energy technologies

Sonophotocatalytic Dye Degradation Using rGO‐BiVO₄ Composites

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Synthesis of butterfly-like BiVO 4 /RGO nanocomposites and their photocatalytic activities

Cited by 16 publications

References 44 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

Advanced graphene-based (photo & electro) catalysts for sustainable & clean energy technologies

Sonophotocatalytic Dye Degradation Using rGO‐BiVO4 Composites

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Sonophotocatalytic Dye Degradation Using rGO‐BiVO₄ Composites