Study of trans-2-hexen-1-ol oxidation over metal-modified mesoporous materials

Authors

  • Belen Melisa Viola Centro de Investigación y Tecnología Química-UTN-CONICET
  • Ema Virginia Sabre Centro de Investigación y Tecnología Química-UTN-CONICET
  • Griselda Alejandra Eimer Centro de Investigación y Tecnología Química-UTN-CONICET
  • Analía Laura Cánepa Centro de Investigación y Tecnología Química-UTN-CONICET
  • Sandra Graciela Casuscelli Centro de Investigación y Tecnología Química-UTN-CONICET

DOI:

https://doi.org/10.52292/j.laar.2025.3493

Keywords:

Heterogeneous catalyst, Oxidation, Trans-2-hexen-1-ol, Green oxidant, Leaching

Abstract

The liquid phase oxidation of trans-2-hexen-1-ol over V-MCM-41 using H2O2 (30 wt.% and 55 wt.%) as oxidant was studied. The V-MCM-41 was synthesized by direct incorporation according to the sol-gel method and characterized by XRD, N2 adsorption-desorption, UV-Vis RD, ICP-OES and FTIR. The high water/oxidant molar ratio in the reaction medium with H2O2 30 wt.% had an adverse effect on the catalytic activity due to the competition between water and oxidant for the active sites of the catalyst. Additionally, a proportional relationship between H2O2 concentration (55 wt.%) and alcohol conversion was observed. However, a decrease in the catalytic activities was found during the recycling tests, indicating the lack of stability of the catalyst under the conditions evaluated. Therefore, 0.1 wt.% of titanium was impregnated on V-MCM-41 and three catalytic cycles were achieved without significant loss of activity. In addition, a reaction mechanism was proposed to explain the oxidation products obtained.

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Published

2025-04-10

Issue

Vol. 55 No. 2 (2025): Latin American Applied Research

Section

Applied Chemistry

License

Copyright (c) 2025 Latin American Applied Research - An international journal

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