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<p>The synergistic interaction between carbon materials and metals has been widely utilized in industrial selective hydrocarbon oxidation. In this study, a pronounced synergistic effect between g-C<sub>3</sub>N<sub>4</sub>-M and MnO<sub>2</sub> nanoparticles was observed, which significantly promoted the oxidation of cumene, facilitated the decomposition of cumene hydroperoxide (CHP), and enhanced the selectivity toward 2-phenyl-2-propanol (PP). Specifically, the 30-MnO<sub>2</sub>/g-C<sub>3</sub>N<sub>4</sub>-M catalyst achieved a cumene conversion of 73.83% with a PP selectivity of 69.61%, representing the most efficient performance among all investigated catalysts. The structural characteristics of the synthesized catalysts were systematically analyzed by SEM, TEM, XRD, FTIR, and XPS. Furthermore, gas chromatography confirmed PP as the predominant reaction product. Mechanistic investigations revealed that the decomposition of CHP constitutes a crucial step in the cumene oxidation process. The facile synthesis and low cost of g-C<sub>3</sub>N<sub>4</sub>-M catalysts offer significant advantages for industrialscale aromatic hydrocarbon oxidation.</p>

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MnO2 nanoparticles supported on g-C3N4-M for the selective oxidation of cumene to 2-phenyl-2-propanol

  • 期刊论文

  • 发表日期：

    2026年5月6日

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  • Xin-shun Chen,
  • Si-zhe Wang,
  • Bing-xu Fan,
  • Li-xin Xu,
  • Chao Wan

摘要

The synergistic interaction between carbon materials and metals has been widely utilized in industrial selective hydrocarbon oxidation. In this study, a pronounced synergistic effect between g-C3N4-M and MnO2 nanoparticles was observed, which significantly promoted the oxidation of cumene, facilitated the decomposition of cumene hydroperoxide (CHP), and enhanced the selectivity toward 2-phenyl-2-propanol (PP). Specifically, the 30-MnO2/g-C3N4-M catalyst achieved a cumene conversion of 73.83% with a PP selectivity of 69.61%, representing the most efficient performance among all investigated catalysts. The structural characteristics of the synthesized catalysts were systematically analyzed by SEM, TEM, XRD, FTIR, and XPS. Furthermore, gas chromatography confirmed PP as the predominant reaction product. Mechanistic investigations revealed that the decomposition of CHP constitutes a crucial step in the cumene oxidation process. The facile synthesis and low cost of g-C3N4-M catalysts offer significant advantages for industrialscale aromatic hydrocarbon oxidation.