Efficient biodiesel production from recycled cooking oil using a NaOH/CoFe2O4 magnetic nano-catalyst: synthesis, characterization, and process enhancement for sustainability

Dalila Bousba, Chafia Sobhi, Emna Zouaoui, Karima Rouibah, Abir Boublia, Hana Ferkous, Ahmed Haddad, Abir Gouasmia, Ivalina Avramova, Zighed Mohammed, Vasile I. Pârvulescu, Krishna Kumar Yadav, Mudassir Hasan, Marina M.S. Cabral-Pinto, Noureddine Elboughdiri, Yacine Benguerba