Impact of Zn2+ Doping on the Structural, Morphological and Photodiode Properties of V2O5 Nanorods

N, Senthil Kumar; Chang, Jih-Hsing; Ho, Mon−Shu; Babu, B.; Sivakumar, Chandrasekar; Mohanbabu, B.; Gowtham, M.; Guo, Donghui; Mohanraj, K.

doi:10.1007/s10904-020-01751-y

Cited by 17 publications

(5 citation statements)

References 35 publications

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“…Indeed, a number of works have reported on the impact of Zn and Mn on morphological features. [19][20][21][22] where the dopant elements (Zn and Mn) were shown to enhance the formation of V 2 O 5 nanostructures. Kumar et al [20] were reported that Zn boosted the nucleation sites for the formation of V 2 O 5 .…”

Section: Resultsmentioning

confidence: 99%

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Effect of Manganese and Zinc co-dopants on electrochemical properties of vanadium oxide (V2O5) based electrode: application for supercapacitor

Ghannam,

Rossi,

Haloui

et al. 2024

Preprint

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Vanadium oxides have been investigated for their potential use in electrochemical supercapacitors due to their variable oxidation states yielding surface redox. However, its electrochemical performance is limited by its poor electronic and ionic conductivity. In an attempt to improve the electronic conductance and electrochemical performance of V2O5, (Mn, Zn) co-doped V2O5 is investigated. (Mn, Zn) (2, 2) wt% co-doped V2O5 provides the high specific capacitance, it achieves 23.72F/g at a scan rate of 5mV/s, and it is characterized by very low charge transfer resistance (301mΩ). At 2A/g current density, its power density and energy density are about 2520Wkg− 1, and 4.85Whkg− 1respectively. Because of its good electrochemical performance, (Mn, Zn) (2, 2) wt% co-doped V2O5 has great application prospects in supercapacitors.

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Section: Resultsmentioning

confidence: 99%

“…[19][20][21][22] where the dopant elements (Zn and Mn) were shown to enhance the formation of V 2 O 5 nanostructures. Kumar et al [20] were reported that Zn boosted the nucleation sites for the formation of V 2 O 5 . Additionally, the buildup of V 2 O 5 nanoparticles was blamed for the increase in the surface area to volume ratio.…”

Section: Resultsmentioning

confidence: 99%

Effect of Manganese and Zinc co-dopants on electrochemical properties of vanadium oxide (V2O5) based electrode: application for supercapacitor

Ghannam,

Rossi,

Haloui

et al. 2024

Preprint

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“…The PL spectrum of the synthesized photocatalysts was analyzed using an excitation wavelength around 320 nm. The V₂O₅ nanoparticle exhibited a pronounced emission intensity peak at approximately 450 nm, indicative of a fast electron-hole recombination rate [45,46]. In contrast, its emission intensity of ZnO was possibly diminished comparing to V₂O₅, with a peak at 400 nm [47,48].…”

Section: Photoluminescence Studymentioning

confidence: 99%

Enhanced photocatalytic activity of V2O5 /g-C3N4 /ZnO nanocomposite for efficient degradation of Amoxicillin, Chlorpyrifos and Methylene blue

Vijayalakshmi,

Shanmugavelan,

MuthuMareeswaran

2024

Preprint

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In the present research investigation, a novel nanocomposite viz. V2O5/g-C3N4/ZnO was synthesized using wet impregnation technique. Its photocatalytic degradation performance was assessed against various organic pollutants including the antibiotic Amoxicillin (AMX), the pesticide Chlorpyrifos (CPF), and the dye Methylene Blue (MB), under the effect of visible light in an aqueous medium. The materials synthesised and their photodegradation effectiveness were systematically characterized by a variety of techniques including XRD, HR-SEM, TEM, EDS, XPS, UV-DRS, PL, BET, and EIS. XRD spectra confirmed the existence in the hexagonal phase of g-C3N4, the hexagonal wurtzite structure in ZnO, and the orthorhombic phase in V2O5. The corresponding plane in the V2O5/g-C3N4/ZnO nanocomposite was also identified. The HR-SEM images depicted a composite of nanosheets and nanorods within the nanocomposite. The synthesized photocatalyst revealed an effective visible light absorption with a bandgap of 2.5 eV and displayed remarkable photocatalytic degradation efficiencies of 93.23% for MB, 62.02% for CPF, and 55.36% for AMX when exposed to visible light for 90 minutes. This proved its higher efficiency than that of individual components viz. g-C3N4, ZnO, and V2O5. The hydrogen ions (h+) and superoxide ions (O2•−) were found to be the key reactive species, which are involving in the photodegradation process by radical scavenging tests. Furthermore, the present nano photocatalyst proved its remarkable photocatalytic stability even after three cycles, showing its favorable chemical properties. The findings imply that this reported photocatalyst is highly suitable for efficiently photodegrading the organic pollutants in aqueous environments.

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“…The diameter of the crystallites has really been found to have an impact on Eg, with smaller crystallites resulting in more distinct energy levels and a greater Eg. [26,27].…”

Section: Optical Measurementsmentioning

confidence: 99%

Structural,Spectral and Electrical Properties of BaNi2-xZnxFe16O27 Nanoparticles Ferrites

Khoreem¹,

Al-Hammadi²

2023

jast

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In the current study, w-type BNF-NPs synthesis via ceramic method.the effects of zinc ions doping on the physical properties of BNF-NPs were analyzed. The formation of BNF-NPs emphasized by XRD, FTIR, UV-Visible spectroscopy and electrical conductivity measurement. The phases structure , crysttallite size and lattice parameters wrere evaluated using XRD results. Hexagonal structure with a single phase apeares, the average grain size was found to be in Nano scale from 32 to 34 nm, while the lattice parameters increased slolly as the doping concentration of zinc ions increases. The spectra of FTIR showed main absorption bands which confirmed formation of hexagonal ferrite phase. UV-VIS analysis was also performed and found that the band gaps were in the semiconducting region and increased with increasing zinc concentration. The AC conductivity of the samples decreased with increasing zinc content and showed a dependence on the frequency and temperature. Additionally, as frequency increase the σac conductivity showed dispersion that decreased as temperature increased.dispersion decreases as the temperature increases.

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Impact of Zn2+ Doping on the Structural, Morphological and Photodiode Properties of V2O5 Nanorods

Cited by 17 publications

References 35 publications

Effect of Manganese and Zinc co-dopants on electrochemical properties of vanadium oxide (V2O5) based electrode: application for supercapacitor

Effect of Manganese and Zinc co-dopants on electrochemical properties of vanadium oxide (V2O5) based electrode: application for supercapacitor

Enhanced photocatalytic activity of V2O5 /g-C3N4 /ZnO nanocomposite for efficient degradation of Amoxicillin, Chlorpyrifos and Methylene blue

Structural,Spectral and Electrical Properties of BaNi2-xZnxFe16O27 Nanoparticles Ferrites

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