Triolein, a major component of many vegetable oils, was chosen as the triglyceride for generating fatty acid methyl ester/biodiesel in the present work. A novel, economical, eco-friendly catalyst was generated by incorporating Mg/Al layered double hydroxide (LDH) into the coconut-husk biochar matrix via the hydrothermal method and was named the ‘biochar-LDH nanocomposite’. With a reaction temperature of 65 oC, methanol: triolein molar ratio of 30:1, and a catalyst weight of 7.5%, a high conversion of triolein of 99% is achieved within 4 hours of reaction time. Overall transesterification kinetics and adsorption kinetics were investigated in a batch reactor using a reduced catalyst loading of 5 wt% and a biochar: LDH ratio of 25:75, following an experimental method. The overall rate constant (at 65 oC), activation energy (EA), and pre-exponential factor (A) are determined to be 0.305 min-1, 8.25 kJ/mol, and 24.3 min-1 following the Arrhenius equation. The adsorption constants are also high for triolein, methanol, methyl oleate (FAME), and glycerol, revealing the desired catalytic performance. It is evident from the results that the kinetic constant is higher than that of many conventional transesterification catalysts, e.g., Potassium hydroxide (KOH), Calcium Oxide (CaO)