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<p>Spiral gas–solid two–phase flow (S–GSF) mechanochemical method was employed to successfully synthesize metal molybdates AMoO<sub>4</sub> (A = Ca, Ba) at room temperature. The functional groups and phase composition of the products were analyzed using X–ray diffraction, Raman spectroscopy and Fourier–transform infrared spectroscopy. By using the S–GSF method, CaMoO<sub>4</sub> was synthesized into particle–like nanostructures, and BaMoO<sub>4</sub> was fabricated into fusiform–like architectures. Ultraviolet (UV)–visible diffuse reflectance spectroscopy was employed to determine the optical band gap of the materials. Photoluminescence measurements showed that CaMoO<sub>4</sub> exhibited a maximum emission at 547&#xa0;nm under 370&#xa0;nm excitation, and BaMoO<sub>4</sub> displayed emission peaks at 367 and 468&#xa0;nm under 275&#xa0;nm excitation.</p>

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Synthesis of scheelite–structured AMoO4 (A = Ca, Ba) via the spiral gas–solid two–phase flow mechanochemical method

  • 期刊论文

  • 发表日期：

    2026年1月6日

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  • Xing Lan,
  • Binshen Wang,
  • Zeli Xiao,
  • Bangnian Cai,
  • Guangfu Lv,
  • Qi Huang,
  • Rufang Peng,
  • Bo Jin

摘要

Spiral gas–solid two–phase flow (S–GSF) mechanochemical method was employed to successfully synthesize metal molybdates AMoO4 (A = Ca, Ba) at room temperature. The functional groups and phase composition of the products were analyzed using X–ray diffraction, Raman spectroscopy and Fourier–transform infrared spectroscopy. By using the S–GSF method, CaMoO4 was synthesized into particle–like nanostructures, and BaMoO4 was fabricated into fusiform–like architectures. Ultraviolet (UV)–visible diffuse reflectance spectroscopy was employed to determine the optical band gap of the materials. Photoluminescence measurements showed that CaMoO4 exhibited a maximum emission at 547 nm under 370 nm excitation, and BaMoO4 displayed emission peaks at 367 and 468 nm under 275 nm excitation.