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Updated: Apr 18, 2026

Author Spotlight: Employing Green-Chemistry Principles for Safe and Sustainable Synthesis of Biodiesels
Published on: April 19, 2024
Biodiesel production from waste cooking oil using copper doped zinc oxide nanocomposite as heterogeneous catalyst
Baskar Gurunathan1, Aiswarya Ravi1
1Department of Biotechnology, St. Joseph's College of Engineering, Chennai 600 119, India.
Abstract:
A novel CZO nanocomposite was synthesized and used as heterogeneous catalyst for transesterification of waste cooking oil into biodiesel using methanol as acyl acceptor. The synthesized CZO nanocomposite was characterized in FESEM with an average size of 80 nm as nanorods. The XRD patterns indicated the substitution of ZnO in the hexagonal lattice of Cu nanoparticles. The 12% (w/w) nanocatalyst concentration, 1:8 (v:v) O:M ratio, 55 °C temperature and 50 min of reaction time were found as optimum for maximum biodiesel yield of 97.71% (w/w). Hence, the use of CZO nanocomposite can be used as heterogeneous catalyst for biodiesel production from waste cooking oil.
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