dc.date.accessioned |
2021-06-04T08:06:09Z |
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dc.date.available |
2021-06-04T08:06:09Z |
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dc.date.issued |
2021 |
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dc.identifier.issn |
0957-4522 |
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dc.identifier.uri |
https://hdl.handle.net/20.500.12619/95656 |
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dc.description |
The authors acknowledge the funding (Grant N<SUP>o</SUP> B00L01UN160420190020) from the Faculty of Chemistry (Algiers), Algeria. |
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dc.description |
Bu yayının lisans anlaşması koşulları tam metin açık erişimine izin vermemektedir. |
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dc.description.abstract |
Na3V2O2(PO4)(2)F was synthesized by a facile hydrothermal route at 250 degrees C. The synthesized product (abbreviated NVPOF), characterized by X-ray diffraction (XRD) powder crystallizes in a tetragonal symmetry (space group: I4/mmm) with lattice parameters: a = 6.3956 angstrom, c = 10.6591 angstrom. The FTIR spectroscopy shows the characteristic peaks of (PO4)(3-) and V-O bonds. The morphology studied by scanning electron microscopy (SEM) shows that the image displays crystals with rectangular shape; the energy dispersive X-ray spectrometry (EDX) confirms the elements existing in the compound with a composition close to the chemical formulation. The bandgap energy (E-g = 1.63 eV) of NVPOF is consistent with its green pale color. We also reported for the first time the photo-electrochemical characterization. The Mott-Schottky characteristic, plotted in Na2SO4 solution, displays p-type behavior with holes as majority carriers, a flat band potential (E-fb = 1.31 V-SCE). The Electrochemical Impedance Spectroscopy (EIS) shows one semicircle in the frequency range (10 MHz-100 kHz), attributed to the charge transfer with a high impedance. As an application, the photoactivity of synthesized NVPOF was studied by degrading the methyl violet, a hazardous dye, under visible light irradiation. NVPOF is a potential photocatalyst for the photodegradation through the (OH)-O-center dot and O-2(center dot-) radicals. An abatement of 82% was obtained within 240 min and the kinetic follows a pseudo-first model with a half photocatalytic life of 98 min. |
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dc.description.sponsorship |
Faculty of Chemistry (Algiers), Algeria [B00L01UN160420190020] |
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dc.language |
English |
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dc.language |
İngilizce |
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dc.language.iso |
eng |
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dc.publisher |
SPRINGER |
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dc.rights |
info:eu-repo/semantics/closedAccess |
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dc.subject |
HIGH-PERFORMANCE CATHODE |
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dc.subject |
ION BATTERIES |
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dc.subject |
ELECTROCHEMICAL PROPERTIES |
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dc.subject |
HYDROGEN-PRODUCTION |
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dc.subject |
THIN-FILMS |
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dc.subject |
ENHANCEMENT |
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dc.subject |
DYE |
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dc.subject |
SEMICONDUCTORS |
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dc.subject |
NANOPARTICLES |
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dc.subject |
ELECTRODE |
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dc.title |
Preparation and photo-electrochemical characterization of the vanadium fluorophosphate Na3V2O2(PO4)(2)F. application to the photo degradation of methyl violet |
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dc.type |
Article |
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dc.type |
Early Access |
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dc.relation.journal |
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS |
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dc.identifier.wos |
WOS:000650140000013 |
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dc.identifier.doi |
10.1007/s10854-021-06093-0 |
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dc.identifier.eissn |
1573-482X |
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dc.contributor.author |
Tartaya, S. |
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dc.contributor.author |
Bagtache, R. |
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dc.contributor.author |
Djaballah, A. M. |
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dc.contributor.author |
Ozacar, M. |
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dc.contributor.author |
Trari, M. |
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dc.relation.publicationcategory |
Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı |
|