Synthesis, characterization and optical band gap of La2CuO4 nanoparticles

Enhessari, Morteza; Shaterian, Maryam; Esfahani, Mohammad Javad; Motaharian, Mohammad Nasser

doi:10.1016/j.mssp.2013.05.005

Cited by 44 publications

(19 citation statements)

References 14 publications

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“…The optical band-gap of the sample can be evaluated by its absorption spectrum, as shown in Fig. 4 [13,26]. As reported, as far as LaFeO 3 is concerned, the charge transfer transitions include transitions of both ligand-to-metal charge transfer and metal-to-metal charge transfer [27].…”

Section: Drs Analysismentioning

confidence: 97%

Synergetic effect of copper species as cocatalyst on LaFeO3 for enhanced visible-light photocatalytic hydrogen evolution

Pan

et al. 2015

International Journal of Hydrogen Energy

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Section: Drs Analysismentioning

confidence: 97%

Synergetic effect of copper species as cocatalyst on LaFeO3 for enhanced visible-light photocatalytic hydrogen evolution

Pan

et al. 2015

International Journal of Hydrogen Energy

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“…The background oxidation of water does not appear until 1 V. The point at which the J d ( V ) curve intercepts the potential‐axis in, the cathodic side corresponds to the hydrogen evolution reaction and a value of −0.84 V is obtained. Figure shows the chrono‐amperometry under full light; the cathodic photocurrent ( J ph ) is characteristic of p type behavior, which takes its origin from oxygen insertion in the crystal lattice and which is responsible of the superconductivity reported early . The photocurrent decays rapidly, because the anodic bias is not large enough to induce a band bending and such behavior reflects an electron tunneling from Cu 2+ : 3d VB to localized states which is inhibited at low anodic polarization.…”

Section: Resultsmentioning

confidence: 99%

reduction on the novel heterosystem La₂CuO₄/SnO₂ under solar light

Lahmar

Rekhila

Trari

et al. 2014

Env Prog and Sustain Energy

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The chromate reduction is successfully achieved over the new heterosystem La2CuO4/SnO2 under solar light. La2CuO4 is a narrow band gap semiconductor with a direct optical transition of 1.27 eV. Its photoelectrochemical characterization is undertaken to predict the electrons injection in SnO2, the latter acts as electrons bridge to adsorbed HCrO4−. The Mott‐Schottky plot of La2CuO4 is characteristic of p‐type conductivity with a flat band potential of −0.46 VSCE. Hence, the conduction band (−1.62 VSCE) is cathodic enough to reduce HCrO4− into Cr3+. The chrono‐potentiometry shows that the adsorption is reached after ∼ 40 min. and averages 15% for an initial concentration of 30 mg/L at pH = 4. The photoactivity is strongly enhanced in presence of oxalic acid as holes scavenger, which hinders the recombination of electron/hole pairs. A complete reduction (30 mg/L) occurs in less than 2 h under solar irradiation. The kinetic of the chromate reduction is well described by the Langmuir‐Hinshelwood model with an apparent rate constant of 0.23 mn−1. The saturation beyond 75 min is due to the competitive water reduction which inhibits considerably the chromate reduction. The reutilization of the heterosystem shows a negligible deactivation effect and the heterosystem could be promising for the water depollution. © 2014 American Institute of Chemical Engineers Environ Prog, 2014 34: 744–750, 2015

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“…The object for the evaluation is the legislation regulating the organizational functional structure of the carriers in the regions on the territories of Volga FederalDistrict. Legislation [14][15][16][17][18][19][20] was evaluated as of 2014. This year was chosen due to the fact that the regional regulatory acts within the existing federal legislation had been completely developed.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of motor transport legislation impact on passenger transportation safety

Yakunina¹,

Yakunin²,

Menshikh³

et al. 2018

IJET

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The article describes the issues regarding organization of passenger motor transport work. The purpose of the research was set, which consists in elaboration of theoretical and methodological regulations for safety assessment of motor transport legislation affecting passenger transportation. The description of theoretical and methodological instruments for assessment of motor transport legislation effect on passenger transportation safety was presented. Multi-level structure of motor transport legislation, resulting in excessive, not always efficient, variety of motor transport activities regulation, was shown. The analysis of regulation of organizational and functional structure indicators of transporters in motor transport legislation of regions' located in the territory of Volga Federal District as of 2014 was carried out. The analysis of breakdown rate indicators was performed in passenger transport for the same period. Correlation analysis of those groups' indicators was conducted. The obtained results indicate the existence of moderate negative relation between those groups' indicators. An important scientific and practical task was solved, which consists in assessment of motor transport legislation affecting passenger transportation safety. It was ascertained that one of methods for managing the safety of passenger transportation by motor transport is regulation of organizational and functional structure of the transporters. The theoretical and methodological instruments were developed to purposefully improve the organization of and technology of passenger transportation by motor transport. There was an assumption made that an optimization of regulated requirements structure would eventually facilitate increase of safety of passenger transportation by motor transport. It was recommended to apply the results of this work in the course of transport legislation elaboration. There was the summary formulated. The conclusion of aim achievement and research hypothesis validity was made.

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Synthesis, characterization and optical band gap of La2CuO4 nanoparticles

Cited by 44 publications

References 14 publications

Synergetic effect of copper species as cocatalyst on LaFeO3 for enhanced visible-light photocatalytic hydrogen evolution

Synergetic effect of copper species as cocatalyst on LaFeO3 for enhanced visible-light photocatalytic hydrogen evolution

reduction on the novel heterosystem La₂CuO₄/SnO₂ under solar light

Evaluation of motor transport legislation impact on passenger transportation safety

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Synthesis, characterization and optical band gap of La2CuO4 nanoparticles

Cited by 44 publications

References 14 publications

Synergetic effect of copper species as cocatalyst on LaFeO3 for enhanced visible-light photocatalytic hydrogen evolution

Synergetic effect of copper species as cocatalyst on LaFeO3 for enhanced visible-light photocatalytic hydrogen evolution

reduction on the novel heterosystem La2CuO4/SnO2 under solar light

Evaluation of motor transport legislation impact on passenger transportation safety

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Product

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reduction on the novel heterosystem La₂CuO₄/SnO₂ under solar light