en تخصصي Special مقاله اصیل Original Article <div style="text-align: justify;">Background: Metal-organic frameworks (MOFs) represent tremendous potential as heterogeneous catalyst in renewable energy production. In this study, biodiesel production using the modified MOF nanocatalyst was investigated in the esterification reaction.<br> Methods: MOF nanocatalyst was prepared using solvothermal method and modified through sulfation process. The nanocatalysts was characterized by XRD, FT-IR, FE-SEM, TEM, N2 adsorption-desorption, and NH3-TPD techniques. The performance of the nanocatalysts was evaluated in the esterification reaction of free fatty acid (FFA) at different operating conditions.<br> Results: The results showed the high crystallinity, appropriate textural properties (995.6 m2g-1), well-adjusted acidity, and high hydrophobicity. The sulfation degree of 4 cc g-1 resulted in the best nanocatalyst, which led to the highest FFA conversion (97%) at the optimal conditions: methanol to FFA ratio of 10:1, 3wt.% nanocatalyst, 160 &deg;C, and 6 hours. Surprisingly, the developed nanocatalyst had a great reusability while the conversion reduction was only 8% after six sequence cycles.<br> Conclusion: These results proved the high capability of the developed nanocatalyst in the esterification reaction to produce biodiesel.<br> <br> Search other works by the article authors:&nbsp;<br> Mahsa Oghabi:&nbsp;<a href="https://www.scopus.com/authid/detail.uri?authorId=58150897800"><span style="color:#006600;">(Scopus)</span></a><br> Mohammad Rostamizadeh:&nbsp;<a href="https://scholar.google.com/citations?hl=en&user=wgr816MAAAAJ"><span style="color:#006600;">(Google Scholar)</span></a><a href="https://pubmed.ncbi.nlm.nih.gov/?term=%C2%A0Mohammad+Rostamizadeh"><span style="color:#006600;">(Pubmed)</span></a><br> <br> <br> &nbsp;</div> Esterification, Methanol, Fatty acids, Metal-organic frameworks 321 329 http://ehemj.com/browse.php?a_code=A-10-1-304&slc_lang=en&sid=1 Mahsa Oghabi chemeng.proj@gmail.com 100319475328460013514 0009-0001-7217-0872 No Faculty of Chemical Engineering, Sahand University of Technology, Sahand New Town, Tabriz, Iran Mohammad Rostamizadeh Rostamizadeh@sut.ac.ir 100319475328460013515 100319475328460013515 Yes Corresponding author: Faculty of Chemical Engineering, Sahand University of Technology, Sahand New Town, Tabriz, Iran