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ES Materials & Manufacturing

Synthesis and Characterization of Novel Calcium Oxide/Calcium Ferrite, CaO/CaFe2O4 Composite Nanocatalyst for Biodiesel Production

Tawakalitu AbdulRasheed, Benjamin Afotey, Emmanuel Godwin Ankudey, and Daniel Adjah Anang

Tawakalitu AbdulRasheed

Benjamin AfoteyEmail

Emmanuel Godwin Ankudey

Daniel Adjah Anang

Department of Chemical Engineering, Kwame Nkrumah University of Science and Technology, Kumasi.Private Mail Bag, University Post Office, KNUST Kumasi, Ghana.

Abstract

In the current study, CaFe2O4 nanoparticles and CaO/CaFe2O4 composite nanocatalysts were synthesized via auto-combustion techniques utilizing citric acid as a chelant. The solution was first prepared and then subsequently transformed into a gel by combustion at 100 °C. The gel was then calcined at 550 °C and calcium oxide was loaded using an ultrasonic approach. In particular, the CaO/CaFe2O4 was investigated as potential catalyst for transesterification of waste cooking oil. The catalyst was characterised by methods including X-ray diffraction (XRD) and Fourier transform infrared (FTIR). X-ray diffraction and FTIR studies confirmed the successful preparation of CaFe2O4 nanoparticles and CaO/CaFe2O4 composite materials. The optimum values of variables considered in the synthesis of biodiesel were predicted using ANOVA and it was in good agreement with the experimental results. The CaO/CaFe2O4 catalyst (4 wt.%) showed high activity for the transesterification reaction achieving a biodiesel yield of 96.13% after 2 hours at 70 °C and methanol-to-oil molar ratio of 12:1. An excellent stability of the catalyst was achieved demonstrating a high biodiesel yield of 78.5% after five consecutive transesterification cycles.

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Publication details

Received: 17 Feb 2023
Revised: 29 Jun 2023
Accepted: 30 Jun 2023
Published online: 05 Jul 2023

Article type:
Research Paper

DOI:
10.30919/esmm922

Volume:
22

Article :
922

Citation:
ES Materials & Manufacturing, 2023, 22, 922

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Permissions:
Copyright

Number of downloads:
4484

Citation Information:
7

Description:

Novel calcium ferrite-supported calcium oxide nanocatalyst improves biodiesel production, enhancing ....

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