Development of visible-light-driven Ca2Fe1−xSmxBiO6 double perovskites for decomposition of Rhodamine 6G dye

Feraru, Simona; Borhan, Adrian Iulian; Samoilă, Petrişor; Mîţă, Carmen; Cucu-Man, Simona; Iordan, Alexandra Raluca; Palamaru, Mircea Nicolae

doi:10.1016/j.jphotochem.2015.04.004

Cited by 28 publications

(10 citation statements)

References 36 publications

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“…For this purpose, different strategies and techniques have been Examined to eradicate dyes (e.g., electron oxidation, ozonation, electro-kinetic coagulation with ions, membrane filtration, and microbial degradation) [9][10][11][12][13]. Among these techniques, photocatalytic degradation has been widely used for contaminated water treatments due to its eco-friendly nature and low cost [14,15]. Numerous catalyst have been investigated for dye degradation such as TMDSc-graphene, polyethylene-TiO2, Hollow cobalt NPs,Si/Six core shell nanowires, Sns nano particles, silver nanoparticles etc.…”

Section: Introductionmentioning

confidence: 99%

Structural, Optical and Photocatalytic Activity of The Cerium Doped Ba2TiMoO6 Double Perovskite.

Ghrib¹,

Al-Otaibi²,

Mahmoud³

et al. 2021

Preprint

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In this work, it was highlighted synthesis strategy and fundamental characterization of the pure and Ce doped Ba2TiMoO6 with different Ce concentrations were presented. It was investigated its thermal stability by using the Thermal Gravimetric Analysis and Differential Thermal Analysis. The crystal structures and the purity of the compounds were analyzed by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. The Surface morphology was examined by using Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) and surface area analysis. The optical properties were examined by using the UV-Vis diffuse reflectance and photoluminescence (PL) spectroscopies. The prepared Ba2TiMoO6 nanopowders are characterized by band gap of 3.41~3.6 eV and violet emission of 426.67 nm wavelength. The degradation efficiency was found approximately 16% of Methyl Blue (MO) after 120 min duration. Our results will predicate new Perovskites materials, which can be used for future environmental applications.

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Section: Introductionmentioning

confidence: 99%

Structural, Optical and Photocatalytic Activity of The Cerium Doped Ba2TiMoO6 Double Perovskite.

Ghrib¹,

Al-Otaibi²,

Mahmoud³

et al. 2021

Preprint

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“…Perovskite oxides with formula ABO 3 or A 2 BO 4 are very important functional materials in various areas as: gas sensors [1,2], automotive exhaust catalysts [3,4], methane reformers that produce syngas [5,6], cathodes in solid oxide fuel cells (SOFCs) [7,8] or visible light photocatalysts [9,10]. The perovskite oxides (ABO 3 ) are used as gas sensor materials because of their thermal stability at higher temperature in different atmospheres.…”

Section: Introductionmentioning

confidence: 99%

Perovskite La1-xSrxFeO3 Thin Films Deposited by Laser Ablation Process

Cyza

Cieniek

Kopia

2016

Archives of Metallurgy and Materials

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The aim of the research was to investigate the influence of strontium on the structure of thin films La1-xSrxFeO 3 (x = 0; 0,1; 0,2). The LaFeO 3 and Sr-doped LaFeO3 films were produced by pulsed laser deposition (PLD) on Si (100) substrate using the Nd-YAG (λ = 266 nm) laser. SEM, AFM and XRD methods were used to characterize the structure and morphology of the thin films. X-Ray Diffraction analysis showed only the LaFeO 3 phase in the undoped thin film and the La0.9Sr0.1O 3 and La0.8Sr0.2O 3 phases in thin films doped by Sr. The mean crystallite size, calculated by Williamson-Hall method, was smaller (of the order of 18 nm) in films doped by Sr. SEM analysis showed small droplets in thin films doped by Sr. Highly developed surface layer was observed using the AFM microscope for thin films doped by Sr.Keywords: Perovskite LaFeO 3 , thin films, gas sensors, PLD on the surface structure of thin films by modification of process parameters. it were found optimal conditions for the deposition of nanocrystalline thin films of LaCoO 3 doped by Sr using laser ablation method. The study of the influence of Sr doping on the structure of LaFeO 3 thin films deposited by PLD is presented in this paper. Experimental Preparation of targetsThe undoped LaFeO 3 targets were purchased from the Kurt J. Lesker Company. The powders of La1-xSrxO 3 (x = 0.1, 0.2) were prepared by mechanical alloying method. The powders La1-xSrxO 3 multiphase La 2 O 3 , La(OH) 3 , La1-xSrxFeO 3 (x = 0, 0.1, 0.2) were milled in ball mill during t = 2, 4, 6, 10 hours using ZrO 2 balls. The powders were dried at temperature 973 K during 4 hours. Then, the targets were prepared by compacting the powders of La1-xSrxFeO 3 under a pressure of p = 10 9 Pa during 5 min then the pellets were sintered at T = 1623°K during 10 h. Deposition of thin filmsThe La1-x SrxCoO 3 (x = 0, 0.1, 0.2) thin films were deposited on (100) oriented Si substrate using a laser ablation system equipped with the Nd-YAG (266 nm) laser and the chamber

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“…Among other photocatalysts, ZnO [16,25] and perovskites have also been widely applied. In addition to water splitting [26,27] and solar cells [27,28], perovskites were also applied successfully in wastewater treatment process for the removal of organic pollutants [27,[29][30][31]. The main advantages of perovskites are their electronic structure and broad spectrum of solar light absorption from the visible to near-infrared region [27].…”

Section: Introductionmentioning

confidence: 99%

“…As one of the important factors influencing the photocatalytic removal of CAF by the flux-grown crystals was the extent of band gap energy: 3.5 eV for CsBa2Ta3O10 and 2.1 eV for LaTiO2N and SrTaO2N.The possible photodegradation mechanisms of CAF over the flux-grown crystals involved fast hydroxylation and oxidation reactions by *OH[31]) leading to the generation of byproducts (dimethylparabanic acid and 1,3-dimethyl-2,4,5-tricarboxy-imidazolidine)[54] and 1,3-dihydroxymethyl-2,4,5-tricarboxyimidazolidine[40]; however, the incorporation of two oxygens led to the generation of di(hydroxymethyl)parabanic acid as an unprecedented intermediate[54] (Scheme 1.). The further mineralization into CO2, NH3, and methylamine proceeded slowly.The kinetics was also calculated for the photocatalytic removal of TOC from aqueous solution containing CAF during the photodegradation reaction.…”

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confidence: 99%

UVA- and visible-light-driven photocatalytic activity of three-layer perovskite Dion-Jacobson phase CsBa2M3O10 (M=Ta, Nb) and oxynitride crystals in the removal of caffeine from model wastewater

Czech

Hojamberdiev

2016

Journal of Photochemistry and Photobiology A: Chemistry

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Development of visible-light-driven Ca2Fe1−xSmxBiO6 double perovskites for decomposition of Rhodamine 6G dye

Cited by 28 publications

References 36 publications

Structural, Optical and Photocatalytic Activity of The Cerium Doped Ba2TiMoO6 Double Perovskite.

Structural, Optical and Photocatalytic Activity of The Cerium Doped Ba2TiMoO6 Double Perovskite.

Perovskite La1-xSrxFeO3 Thin Films Deposited by Laser Ablation Process

UVA- and visible-light-driven photocatalytic activity of three-layer perovskite Dion-Jacobson phase CsBa2M3O10 (M=Ta, Nb) and oxynitride crystals in the removal of caffeine from model wastewater

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