Mesoporous Zn/MgO hexagonal nano-plates as a catalyst for camelina oil biodiesel synthesis

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Abstract

A novel mesoporous Zn/MgO hexagonal-nano-plate catalyst was synthesized by a simple template-free hydrothermal method and applied in the base-catalyzed transesterification of Camelina oil for biodiesel synthesis. The Zn/MgO catalyst calcinated at 873 K exhibited the highest catalytic activity with a yield of 88.7%. This catalytic reaction was performed using 3% w/w of the catalyst with a methanol-to-oil molar ratio of 24:1 at 393 K in 8 h. The excellent catalytic performance is possibly attributed to its favorable textural features with relatively high surface area (69.1 m2 g−1) and appropriate size of the mesopores (10.4 nm). In addition, the as-synthesized catalyst demonstrated a greater basic sites density than single mesoporous MgO, which might have been promoted by the addition of Zn, leading to a synergetic interaction that enhanced its catalytic activity. This catalytic system demonstrated high stability for five catalytic runs and catalytic activity with over 84% yield.

Original languageEnglish
Article number2690
JournalNanomaterials
Volume11
Issue number10
DOIs
Publication statusPublished - 13 Oct 2021

Keywords

  • Biodiesel
  • Camelina oil
  • Heterogeneous base catalyst
  • Mesoporous
  • Nano-plates
  • Transesterification
  • Zn/MgO

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)

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