Basicity-tuned graphitic carbon nitride supported MgO heterogeneous catalysts for efficient transesterification of groundnut oil to biodiesel
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Le résumé fourni par la source
Quality and quantity of biodiesel derived from oil depend on the type of feedstock and the transesterification process. To maximize biodiesel production efficiency and ensure the desired fuel quality, it is crucial to develop and optimize feedstock-specific production processes. This study reports on the transesterification of groundnut oil using a heterogeneous catalyst. Magnesium oxide (MgO) and its composites with graphitic carbon nitride (g-C 3 N 4 ) at 10, 30, and 50 wt% (MG10, MG30, MG50) were used. The composite catalyst combines basic sites from MgO and Lewis acid sites from the nitrogen atoms in the g-C 3 N 4 triazine unit, giving rise to synergistic effects that enhances biodiesel production. MgO nanoparticles were synthesized via precipitation, followed by calcination at 500 °C, and MgO/g-C 3 N 4 composites were prepared by grinding at different ratios. Morphological and structural studies confirmed material characteristics. BET analysis indicated an increased surface area of 71.39 m 2 /g, enhancing catalytic activity, while SEM revealed the agglomerated g-C 3 N 4 and the cubic morphology of MgO. Response surface methodology was used to optimize catalyst loading, temperature, and reaction time parameters. The optimal conditions for biodiesel conversion using MG50 composite was determined to be methanol/oil ratio of 6:1, 2.5 wt% catalyst loading, 41.7 °C reaction temperature and spanning 52 min of reaction, yielding 94 % efficiency. GC–MS analysis confirmed successful transesterification, identifying key fatty acid esters such as ethyl oleate (34.72 %) and hexadecanoic acid methyl ester (7.69 %). This work supports further research into feedstock-specific catalysts for industrial biodiesel applications.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Basicity-tuned graphitic carbon nitride supported MgO heterogeneous catalysts for efficient transesterification of groundnut oil to biodiesel
- Date Crossref
- 01/06/2025
- Éditeur
- Elsevier BV
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Pondicherry University Department of Green Energy Technology pays non établi dans la noticeUniversité ou école supérieure
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Universidade Federal do Rio de Janeiro pays non établi dans la noticeUniversité ou école supérieure
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Universidade Federal do Estado do Rio de Janeiro pays non établi dans la noticeUniversité ou école supérieure
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Universidade Federal da Bahia pays non établi dans la noticeUniversité ou école supérieure
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School of Chemistry Greentec Laboratory pays non établi dans la noticeUniversité ou école supérieure
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Polytechnic School Laboratory of Bioenergy and Catalysis pays non établi dans la noticeUniversité ou école supérieure
Department of Green Energy Technology — Pondicherry University, Universidade Federal do Rio de Janeiro et Universidade Federal do Estado do Rio de Janeiro, avec 3 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.