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This work explores the transformation of waste cooking oil (WCO) into epoxidized oil using titanium dioxide (TiO2) as a solid catalyst through an in situ peracid approach. The study focuses on how variations in reaction temperature and catalyst amount affect the relative conversion to oxirane (%RCO). Among the tested conditions, 75 °C produced the highest oxirane yield, suggesting it as the optimal temperature for balancing reactivity and product stability. Furthermore, using 0.25 g of TiO2 catalyst resulted in a better conversion outcome compared to 0.5 g, likely due to reduced side reactions. These findings highlight the potential of TiO2 in driving a cleaner, waste-to-value epoxidation route and offer insight into process parameter optimization for future scale-up.

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Epoxidation of Waste Cooking Oil Applied Hybrid Peracids Mechanism with Applied Titanium Dioxide

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  • 发表日期：

    2026年

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  • Mohd Jumain Jalil,
  • Intan Suhada Azmi,
  • Norhafini Hambali,
  • Noorfazlida Binti Mohamed,
  • Siti Nadia Abdullah,
  • Norin Hafizah Rahim,
  • Mohammad ‘Aathif Addli

摘要

This work explores the transformation of waste cooking oil (WCO) into epoxidized oil using titanium dioxide (TiO2) as a solid catalyst through an in situ peracid approach. The study focuses on how variations in reaction temperature and catalyst amount affect the relative conversion to oxirane (%RCO). Among the tested conditions, 75 °C produced the highest oxirane yield, suggesting it as the optimal temperature for balancing reactivity and product stability. Furthermore, using 0.25 g of TiO2 catalyst resulted in a better conversion outcome compared to 0.5 g, likely due to reduced side reactions. These findings highlight the potential of TiO2 in driving a cleaner, waste-to-value epoxidation route and offer insight into process parameter optimization for future scale-up.