Sanji Firmansyah, Egi Agustian, Nino Rinaldi, Nuni Widiarti, Yuliza Hanifah, Maisaroh, Anny Sulaswatty
Natural bentonite from Pacitan - Indonesia as a support in the preparation of Ti and Zr-pillared metal catalysts (Ti-Zr/bent) for esterification reaction were studied. The preparation of Ti-Zr/bent catalyst was prepared to find out the effect of molar ratios (Ti:Zr) where an investigation was performed in the esterification of waste cooking oil. The catalyst was varied as follows: 0.5:1 (Ti-Zr-1/bent), 1:1 (Ti-Zr-2/bent), 1.5:1 (Ti-Zr-3/bent), 2:1 (Ti-Zr-4/bent), and 5:1 (Ti-Zr-5/bent) were used to determine the yield. The reaction was carried out for 3 hours at 150°C and a pressure of 40 bar N2 gasses. The result of the Ti-Zr/bent catalyst was given increasing significantly for surface area of 133-147 m /g compares to bentonite 27 m /g and 10 times of acidity. The best catalyst was shown in 2:1 of ratio Ti:Zr (molar) on esterification reaction with succesfuly performed about 80.40% of yield. © 2025 by Authors.
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, Central Java, Semarang, 50229, Indonesia; Research Center for Chemistry, National Research and Innovation Agency (BRIN), KST BJ Habibie, Banten, Tangerang Selatan, 15314, Indonesia; Research Center for Agroindustry, National Research and Innovation Agency (BRIN), KST BJ Habibie, Banten, Tangerang Selatan, 15314, Indonesia
