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<p>This paper reports the simple wet chemical method to synthesis pure molybdenum trioxide (MoO<sub>3</sub>) and silver-doped molybdenum trioxide (Ag@MoO<sub>3</sub>) nanorods including photocatalysts for removal of pollutants from wastewater and photodiode for optical communication. XRD analysis reveals the successful creation of orthorhombic structure in both MoO<sub>3</sub> and Ag@MoO<sub>3</sub>. Minor deviation in position of predominant crystal planes as (110) and (120) is detected from X-ray diffraction (XRD) results with the size of the particle to be in the range of 27–31.4&#xa0;nm. Field Emission Scanning Electron Microscopy (FE-SEM) images reveal that 15% Ag@MoO<sub>3</sub> sample has interwoven nanorods along with caterpillar-like structure. HR-TEM (High-resolution transmission electron microscopy) images provide the d-spacing values of the crystal planes are 0.389&#xa0;nm and 0.345&#xa0;nm respectively corresponds to the planes (110) and (041) respectively. Photoluminescence (PL) spectra reveal the three emission bands which are located at 425, 490 and 520&#xa0;nm. Syntheses of pure MoO<sub>3</sub> and Ag@MoO<sub>3</sub> are used for the photocatalytic degradation of Methylene blue (MB) under UV-Vis light illumination. The optimized samples of Ag@MoO<sub>3</sub> and MoO<sub>3</sub> showed the degradation efficiency is 98.7% and 95.78% respectively after seven cycles. A photodiode device is created using high-quality crystalline particles and Ag contacts are deposited on Ag@MoO<sub>3</sub> using a metal with interdigitated electrodes. The ideality factor (n) values Ag-α-MoO<sub>3</sub> under bright and dark conditions are found to be 0.68 and 0.78 respectively. Under optimum conditions, the device showed a high current gain and sensitivity. Applications for wastewater treatment and optical communications are carried by the transition metal incorporation metal oxides.</p>

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Silver Decorated α-MoO3 Nanoparticles Synthesis for MB Dye Degradation and Heterostructure Photodetector Under Visible Light Irradiation

  • 期刊论文

  • 发表日期：

    2025年6月24日

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  • Rajiv Chandar Natarajan,
  • Subramani Shanmugam,
  • Vijayakumar Gopal,
  • SaravanaVadivu Arunachalam

摘要

This paper reports the simple wet chemical method to synthesis pure molybdenum trioxide (MoO3) and silver-doped molybdenum trioxide (Ag@MoO3) nanorods including photocatalysts for removal of pollutants from wastewater and photodiode for optical communication. XRD analysis reveals the successful creation of orthorhombic structure in both MoO3 and Ag@MoO3. Minor deviation in position of predominant crystal planes as (110) and (120) is detected from X-ray diffraction (XRD) results with the size of the particle to be in the range of 27–31.4 nm. Field Emission Scanning Electron Microscopy (FE-SEM) images reveal that 15% Ag@MoO3 sample has interwoven nanorods along with caterpillar-like structure. HR-TEM (High-resolution transmission electron microscopy) images provide the d-spacing values of the crystal planes are 0.389 nm and 0.345 nm respectively corresponds to the planes (110) and (041) respectively. Photoluminescence (PL) spectra reveal the three emission bands which are located at 425, 490 and 520 nm. Syntheses of pure MoO3 and Ag@MoO3 are used for the photocatalytic degradation of Methylene blue (MB) under UV-Vis light illumination. The optimized samples of Ag@MoO3 and MoO3 showed the degradation efficiency is 98.7% and 95.78% respectively after seven cycles. A photodiode device is created using high-quality crystalline particles and Ag contacts are deposited on Ag@MoO3 using a metal with interdigitated electrodes. The ideality factor (n) values Ag-α-MoO3 under bright and dark conditions are found to be 0.68 and 0.78 respectively. Under optimum conditions, the device showed a high current gain and sensitivity. Applications for wastewater treatment and optical communications are carried by the transition metal incorporation metal oxides.