Grain size disposed structural, optical and polarization tuning in ZnO

Transition metal oxide has emerged as one of the most potential candidates for environment remediation by utilizing solar energy through photocatalysis. This study compares the optical characteristics of zinc oxide (ZnO) and ceria‐doped zinc oxide (CeZnO) nanoparticles synthesized through a facile chemical precipitation method without using any assistant catalyst. The present work investigates the consequences of ceria (cerium dioxide, CeO2) intrusion on the photocatalytic activity of ZnO nanoparticles using methylene blue (MB) as a probe pollutant. The CeZnO showed an increase in photoactivity when compared to ZnO nanoparticles for degradation of MB in an aqueous solution under ultraviolet (UV) irradiance. The resulting heterojunction between ZnO and that of ceria enhances the charge separation efficiency showing a strong correlation between ZnO and CeO2 heterojunction on the charge transfer mechanism across the interface.

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“…This also suggests that introducing ceria results in formation of impurity band formed by overlapped impurity states. [ 42 ]…”

Section: Resultsmentioning

confidence: 99%

Enhanced photocatalytic activity of ceria‐doped zinc oxide under UV illumination prepared via chemical precipitation

et al. 2022

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“…Also, we know that h-BN is a material having high thermal stability, therefore changes reflected in the lattice parameters can be ascribed to the stress-induced in the lattice due to confinement of grain in the nano dimension. 39,40 This process of attaining thermal stability thus leads to the successful formation of h-BNNS.…”

Section: Resultsmentioning

confidence: 99%

Enhanced Electrochemical Performance of Hydrothermally Exfoliated Hexagonal Boron Nitride Nanosheets for Applications in Electrochemistry

Sharma

Puri

2021

J. Electrochem. Soc.

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Two-dimensional (2D) morphology of hexagonal boron nitride (h-BN), owing to its peculiar characteristics of non-toxicity and uniquely featured oxidation resistance has attracted extensive attention in electrochemical applications. Here, we report a facile top-down approach for the successful synthesis of hexagonal boron nitride nanosheets (h-BNNS) through a low-temperature hydrothermal method. The structural and spectroscopic characterizations have been performed using XRD, FT-IR, Raman and UV-Visible Spectroscopy that reveals incorporation of maximum induced strain, multifunctional groups and formation of few layers h-BNNS. The nanosheets morphology is confirmed by series of characterizations (SEM, TEM, and AFM) revealing the large lateral size and relatively low surface roughness of h-BNNS. The electrodes for electrochemical characterizations are prepared using the electrophoretic deposition (EPD) technique onto ITO substrates with the help of magnesium nitrate [Mg(NO3)2·6H2O] as a mediator. Electrochemical Studies has been performed in phosphate buffer saline (PBS) with Ferro-ferricyanide [Fe(CN)6]3−/4− as a redox couple. Cyclic voltammogram of h-BNNS (Ipa = 1.29 mA and Ipc = −1.23 mA) indicates 69.96% enhancement in redox peaks current and 71.04% rise in electro-active surface area with respect to Bulk h-BN. The electrochemical studies uncover the potential of h-BNNS in the development of electroanalytical devices in applications such as sensing, anticorrosion, energy conversion and energy storage applications owing to their enhanced redox peaks, large electroactive surface area, and reduced charge transfer resistance as well as the admittance of Warburg element.

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Design and characterization of structural, mechanical, electronic, and optical properties of CrxMo1-xS2 alloys for advanced material applications

Moslehi,

Nourbakhsh,

Vashaee

2024

J Mater Sci

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Grain size disposed structural, optical and polarization tuning in ZnO

Cited by 17 publications

References 65 publications

Enhanced photocatalytic activity of ceria‐doped zinc oxide under UV illumination prepared via chemical precipitation

Enhanced photocatalytic activity of ceria‐doped zinc oxide under UV illumination prepared via chemical precipitation

Enhanced Electrochemical Performance of Hydrothermally Exfoliated Hexagonal Boron Nitride Nanosheets for Applications in Electrochemistry

Design and characterization of structural, mechanical, electronic, and optical properties of CrxMo1-xS2 alloys for advanced material applications

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