Synthesis of Murraya koenigii ‐Derived Heterogeneous Catalyst for Sustainable Biodiesel Production from Cassia Fistula Oil
Year: 2025
Type: article
Abstract: ABSTRACT The present investigation aims to utilize Murraya koenigii extract for the synthesis of a CaO catalyst to produce biodiesel from crude oil obtained from Cassia fistula . Initially, the Murraya koenigii extract was prepared by boiling its ground leaves for 30 min. Then, a heterogeneous catalyst (CaO) was prepared by sol‐gel synthesis. The precursor obtained was annealed at 500°C, 700°C and 900°C. X‐ray diffraction (XRD) analysis of the synthesized material revealed that the CaO phase retained its structure at 700°C and 900°C. Similarly, Fourier Transform Infrared Spectroscopy (FTIR) confirmed the presence of CaCO 3 at lower temperatures, while CaO was formed at higher temperatures. Gas Chromatography–Mass Spectrometry (GC‐MS) analysis of the Murraya koenigii extract confirmed the presence of dominant acidic compounds (1‐butanol and n ‐hexadecanoic acid), which act as acid catalysts during the formation of CaO. Biodiesel (75% yield) from Cassia fistula oil was synthesized by heating the crude oil and CaO with methanol at 60°C for 2 h under reflux conditions. FTIR analysis of the crude oil and synthesized biodiesel showed a characteristic peak for C═O stretching of the ester group (1746 cm −1 ) and the presence of an ester linkage, indicated by a peak at 1157 cm −1 . GC‐MS analysis of the crude oil confirmed the presence of key fatty acids such as oleic acid, palmitic acid and linoleic acid which were suitable for biodiesel production.
Source: Macromolecular Symposia
DOI: 10.1002/masy.70146
Authors: Eksha Guliani, Reema Haldar, Vinayak V. Pathak, Sangita Banga, Kausar Fatima, Richa Kothari, Har Mohan Singh
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4415303693