Scholarlink

<p>In this study, graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) was subjected to controlled shock wave treatments ranging from 100, 150, and 200 shock pulses to investigate their impact on its structural, morphological, and optical properties. The g-C<sub>3</sub>N<sub>4</sub> samples were synthesized through thermal condensation method and exposed to shock waves using a semi-automatic Reddy tube, with a Mach number of 2.2, transient pressure of 2.0&#xa0;MPa, and temperature of 864&#xa0;K. Characterization techniques including powder X-ray diffraction, Fourier-transform infrared spectroscopy, UV-Vis spectroscopy, photoluminescence spectroscopy, and Scanning electron microscopy were employed. The results demonstrated that shock wave treatment leads to a reduction in crystallite size, modification of vibrational modes, a red shift in the absorption edge, and band gap tuning. Notably, moderate shocks enhanced photoluminescence, while shocks introduced defects, resulting in blue shifts. Morphological changes, such as surface densification, were also observed. This study introduces a unique approach by applying shock waves to tailor the physicochemical properties of g-C<sub>3</sub>N<sub>4</sub>. Such tunable features make the material highly suitable for advanced applications in photocatalysis, optoelectronic devices, and energy conversion systems.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Tailoring graphitic carbon nitride properties through shock wave engineering: a path to enhanced optical and structural performance

  • 期刊论文

  • 发表日期：

    2025年7月29日

查看全文
  • J. Venkatesan,
  • J. Vinoth Kumar,
  • E. Ragulkumar,
  • J. Bosco Franklin,
  • S. John Sundaram,
  • Mir Waqas Alam,
  • Shima sadaf

摘要

In this study, graphitic carbon nitride (g-C3N4) was subjected to controlled shock wave treatments ranging from 100, 150, and 200 shock pulses to investigate their impact on its structural, morphological, and optical properties. The g-C3N4 samples were synthesized through thermal condensation method and exposed to shock waves using a semi-automatic Reddy tube, with a Mach number of 2.2, transient pressure of 2.0 MPa, and temperature of 864 K. Characterization techniques including powder X-ray diffraction, Fourier-transform infrared spectroscopy, UV-Vis spectroscopy, photoluminescence spectroscopy, and Scanning electron microscopy were employed. The results demonstrated that shock wave treatment leads to a reduction in crystallite size, modification of vibrational modes, a red shift in the absorption edge, and band gap tuning. Notably, moderate shocks enhanced photoluminescence, while shocks introduced defects, resulting in blue shifts. Morphological changes, such as surface densification, were also observed. This study introduces a unique approach by applying shock waves to tailor the physicochemical properties of g-C3N4. Such tunable features make the material highly suitable for advanced applications in photocatalysis, optoelectronic devices, and energy conversion systems.