{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["13(9)"],"submitter":["Chen W"],"pubmed_abstract":["Using a simple method of impregnation and then calcination, diatomite supported binary transition metal sulfates (Fe and Zr, designated as Fe2(SO4)3&Zr(SO4)2@diatomite) were prepared and used as a catalyst in the preparation of renewable biofuels. The synthesised Fe2(SO4)3&Zr(SO4)2@diatomite catalyst (Fe2(SO4)3 : Zr(SO4)2 : diatomite = 1 : 2 : 6, mass ratio) was thoroughly characterised using transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, microbeam X-ray fluorescence (μ-XRF) spectroscopy and thermogravimetric analysis (TG). The results demonstrated that the sulfate was successfully loaded onto the diatomite with a uniform distribution. The N2 adsorption/desorption analysis indicated that the catalyst's specific surface area was 1.54 m2 g-1. The catalyst exhibited outstanding performance in the preparation of renewable biofuel (biodiesel) from waste fatty acids and the optimal parameters were methanol-to-oil 1.25 : 1, reaction temperature 70 °C, catalyst concentration 10 wt%, reaction time 4 h. The conversion was found to reach 98.90% under optimal parameters, which is better than that of Fe2(SO4)3·xH2O, Zr(SO4)2·4H2O, Fe2(SO4)3@diatomite and Zr(SO4)2@diatomite. Moreover, the catalyst can be recycled by simple filtration and reused for three cycles after regeneration without noticeable reduction in catalytic activity."],"journal":["RSC advances"],"pagination":["6002-6009"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9936845"],"repository":["biostudies-literature"],"pubmed_title":["Low-cost diatomite supported binary transition metal sulfates: an efficient reusable solid catalyst for biodiesel synthesis."],"pmcid":["PMC9936845"],"pubmed_authors":["Wu Z","Li X","Zhang Z","Peng R","Chen W","Cao D","Niu K","Wu W"],"additional_accession":[]},"is_claimable":false,"name":"Low-cost diatomite supported binary transition metal sulfates: an efficient reusable solid catalyst for biodiesel synthesis.","description":"Using a simple method of impregnation and then calcination, diatomite supported binary transition metal sulfates (Fe and Zr, designated as Fe2(SO4)3&Zr(SO4)2@diatomite) were prepared and used as a catalyst in the preparation of renewable biofuels. The synthesised Fe2(SO4)3&Zr(SO4)2@diatomite catalyst (Fe2(SO4)3 : Zr(SO4)2 : diatomite = 1 : 2 : 6, mass ratio) was thoroughly characterised using transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, microbeam X-ray fluorescence (μ-XRF) spectroscopy and thermogravimetric analysis (TG). The results demonstrated that the sulfate was successfully loaded onto the diatomite with a uniform distribution. The N2 adsorption/desorption analysis indicated that the catalyst's specific surface area was 1.54 m2 g-1. The catalyst exhibited outstanding performance in the preparation of renewable biofuel (biodiesel) from waste fatty acids and the optimal parameters were methanol-to-oil 1.25 : 1, reaction temperature 70 °C, catalyst concentration 10 wt%, reaction time 4 h. The conversion was found to reach 98.90% under optimal parameters, which is better than that of Fe2(SO4)3·xH2O, Zr(SO4)2·4H2O, Fe2(SO4)3@diatomite and Zr(SO4)2@diatomite. Moreover, the catalyst can be recycled by simple filtration and reused for three cycles after regeneration without noticeable reduction in catalytic activity.","dates":{"release":"2023-01-01T00:00:00Z","publication":"2023 Feb","modification":"2026-03-18T13:45:08.963Z","creation":"2025-04-06T14:45:22.25Z"},"accession":"S-EPMC9936845","cross_references":{"pubmed":["36816082"],"doi":["10.1039/d2ra07947j"]}}