Eco-Friendly Cu(II) Coordination Polymer Functionalized with –SO₃H Groups for Sustainable Biodiesel Production

کد مقاله : 1015-ICOC

نویسندگان

آرزو منعم * دانشگاه بوعلی سینا

چکیده مقاله

The development of recyclable heterogeneous acid catalysts is a major focus in sustainable energy research, particularly for biodiesel production. In this study, a novel sulfonic acid functionalized metal-organic coordination polymer (MOCP) catalyst, Cu L@SO₃H, was synthesized via solvothermal reaction of Cu(NO₃)₂·3H₂O with ligand L, followed by post-synthetic sulfonation. The heterogeneous catalyst, bearing accessible –SO₃H groups, was comprehensively characterized by FTIR, XRD, SEM, EDX, and TGA, confirming successful functionalization and structural stability. The Cu L@SO₃H catalyst exhibited high activity in the esterification of various fatty acids, including oleic, palmitic, myristic, and lauric acids, achieving biodiesel yields above 90% under mild and solvent-free conditions. Furthermore, the catalyst efficiently converted recycled cooking oil into biodiesel, demonstrating practical applicability. Importantly, Cu L@SO₃H could be easily recovered by centrifugation and reused for at least four cycles with minimal loss of activity. This work highlights the potential of sulfonated ligand-based copper coordination polymers as efficient, recyclable, and environmentally friendly heterogeneous acid catalysts for sustainable biodiesel production.

کلیدواژه ها

coordination polymer, Sulfonic acid catalyst, Biodiesel production, Recyclable catalyst, Green chemistry

وضعیت: پذیرفته شده