Scholarlink

<p>The pursuit of sustainable chemical processes has led to the development of efficient catalysts for synthesizing high-value product like ethyl lactate through the esterification of lactic acid with ethanol. This study aims to develop mesoporous silica-based catalysts (SBA-15) by incorporating with CuO, V₂O₅, and WO₃ to improve catalytic efficiency in ethyl lactate production. Synthesized via wet impregnation, the catalysts were characterized using SEM–EDX, TEM, XRD, TGA, FT-IR, NH<sub>3</sub>-TPD, and XPS. These techniques confirmed effective metal incorporation in mesopore structure. Catalytic performance tests showed that 9%Cu-SBA-15 and 9%W-SBA-15 achieved high lactic acid conversions of 82.8% and 78.5%, outperforming Amberlyst-15 (54.6%). These catalysts demonstrated stable reusability, maintaining approximately 60% efficiency after three cycles without further regeneration, except V-SBA-15, which showed a 45.21% drop due to leaching and pore blockage. This research emphasizes the influence of metal type and loading on the catalytic efficiency and long-term viability of metal oxide-supported SBA-15, providing insights for optimizing sustainable synthesis processes.</p> Graphical Abstract <p></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

Enhancing efficiency of metal oxide-silica based catalysts, characterization and eco-friendly ethyl lactate production

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年11月10日

查看全文
  • Kanogwan Tohdee,
  • Sorasich Veeraviroj,
  • Surat Semmad,
  • Piyasan Praserthdam,
  • Bunjerd Jongsomjit

摘要

The pursuit of sustainable chemical processes has led to the development of efficient catalysts for synthesizing high-value product like ethyl lactate through the esterification of lactic acid with ethanol. This study aims to develop mesoporous silica-based catalysts (SBA-15) by incorporating with CuO, V₂O₅, and WO₃ to improve catalytic efficiency in ethyl lactate production. Synthesized via wet impregnation, the catalysts were characterized using SEM–EDX, TEM, XRD, TGA, FT-IR, NH3-TPD, and XPS. These techniques confirmed effective metal incorporation in mesopore structure. Catalytic performance tests showed that 9%Cu-SBA-15 and 9%W-SBA-15 achieved high lactic acid conversions of 82.8% and 78.5%, outperforming Amberlyst-15 (54.6%). These catalysts demonstrated stable reusability, maintaining approximately 60% efficiency after three cycles without further regeneration, except V-SBA-15, which showed a 45.21% drop due to leaching and pore blockage. This research emphasizes the influence of metal type and loading on the catalytic efficiency and long-term viability of metal oxide-supported SBA-15, providing insights for optimizing sustainable synthesis processes.

Graphical Abstract