Preparation of cellulose/CaO-Fe2O3 nanocomposites as catalyst for fatty acid methyl ester production

Helmiyati, H.; Masriah, Imas

doi:10.1063/1.5132489

Cited by 10 publications

(10 citation statements)

References 21 publications

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“…The XRD pattern of nanocellulose ( Figure 3 a) featured peaks at 2 θ = 16°, 22° (most intense), and 35°, corresponding to reflections from the (101), (002), and (040) planes [ 46 ], respectively. These data were in line with the results of our previous studies [ 13 , 27 , 43 ]. The diffraction pattern of α-Fe 2 O 3 ( Figure 3 b) featured peaks at 2 θ = 25.3°, 33.5°, 36.3°, 40.3°, 50.2°, 55.2°, 57.8°, 63.5°, 65.2°, and corresponding to the (012), (104), (110), (113), (024), (116), (122), (214), and (300) planes of Fe 2 O 3 , respectively.…”

Section: Resultssupporting

confidence: 93%

“…The bands at 1140 and 1310 cm −1 were assigned to the symmetric vibration of SO 3 − , the symmetric vibration of the O=S=O unit in the SO 3 H group, and the asymmetric vibration of SO 2 − , respectively, and indicated the successful formation of nanocellulose sulfonates. The spectra of α-Fe 2 O 3 ( Figure 2 b) and ZrO 2 ( Figure 2 c) featured peaks at 543 cm −1 (Fe–O) [ 43 , 44 ]and 540 cm −1 (Zr–O) [ 45 ], respectively. The spectrum of cellulose@α-Fe 2 O 3 –ZrO 2 ( Figure 2 d) featured a band at 530 cm −1 that corresponded to the overlap of Fe–O and Zr–O peaks.…”

Section: Resultsmentioning

confidence: 99%

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Highly efficient synthesis of biodiesel catalyzed by a cellulose@hematite-zirconia nanocomposite

Helmiyati

Abbas

Dini

et al. 2021

Heliyon

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The depletion of fossil fuels calls for the development of renewable alternatives such as biodiesel and has inspired much research on catalysts for the production of biodiesel through the esterification of biomass-derived materials. Herein, a green heterogeneous catalyst for highly efficient biodiesel synthesis was fabricated from rice straw–derived cellulose, hematite, and zirconia and was shown to contain porous irregularly shaped α-Fe 2 O 3 –ZrO 2 composites (average particle size = 42.5 nm) evenly distributed on the nanocellulose surface. The optimal catalyst (nanocellulose:α-Fe 2 O 3 –ZrO 2 = 2:1, w/w) afforded biodiesel in a yield of 92.50% and with specifications close to those prescribed by international standards. This catalyst could be reused for up to five cycles without a marked activity loss, with the biodiesel yield in the fifth cycle equaling 80.0%. The developed nanocomposite holds great promise for cutting the costs of biodiesel production, as it is derived from biodegradable raw materials and is renewable, non-corrosive, easy to handle, and green. In addition, the large-scale discharge of this catalyst after use does not pose a hazard to the environment.

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Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Highly efficient synthesis of biodiesel catalyzed by a cellulose@hematite-zirconia nanocomposite

Helmiyati

Abbas

Dini

et al. 2021

Heliyon

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“…The XRD pattern can also provide information on the crystal size calculated using the Scherrer equation in Equation (2) [13]: (2) where D denotes the crystal size; , the wavelength (1.406 Å); , the diffraction angle; and 1/2, the full width at half maximum (FWHM). The crystal size of TiO2−ZrO2 was 11.86 nm, and the cellulose-TiO2-ZrO2 nanocomposite was obtained at 30.42 nm.…”

Section: Cellulose-tio2-zro2 Nanocompositementioning

confidence: 99%

“…Multiple researchers have extracted cellulose from natural biomass wastes, such as: rice husks [11], rice straws [12,13], grasses [14], pineapple crowns [15], and corncobs [16]. Other research on the application of biocatalysts includes the application of nanocomposite catalysts, such as: cellulose-TiO2 used for the rapid adsorption of Pb 2+ [17], CMC-ZrO2 applied in the fields of ceramics and catalysis [18], cellulose-Fe3O4 used for the synthesis of pyranopyrimidine derivatives [19], sodium alginate-TiO2 util ized f or the syn th esis of 5hydroxymethylfurfural (5-HMF) from fructose [20], and calcium alginate-TiO2-SiO2 used for the conversion of glucose to 5-HMF [21].…”

Section: Introductionmentioning

confidence: 99%

Cellulose and TiO2–ZrO2 Nanocomposite as a Catalyst for Glucose Conversion to 5-EMF

Dini

Helmiyati

Krisnandi

2021

Bull. Chem. React. Eng. Catal.

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This work demonstrated the use of green material catalysts, produced from Sengon sawdust waste, to obtain nanocellulose biopolymers. The green material catalysts were utilized as catalysts support of TiO2−ZrO2 binary oxide in the form of nanocomposite materials with superior synergistic properties. The isolation of nanocellulose was achieved using a hydrolysis method with a yield of 63.40%. The TiO2 and ZrO2 nanoparticles have average particle sizes of around 25 and 15 nm, respectively, and the binary oxides of TiO2–ZrO2 pretained an average particle size of 30 nm were used. Furthermore, the nanocellulose combined with the TiO2−ZrO2 binary oxide had formed a cellulose/TiO2−ZrO2 nanocomposite with an average particle size of 30 nm. This indicates that the supporting nanocellulose can stabilize the nanoparticles and avoid aggregation. Moreover, the nanocomposites can be used as a catalyst for the conversion of glucose to 5-ethoxymethylfurfural (5-EMF). The catalytic activity increased with the nanoparticle effect obtained ZrO2, TiO2, TiO2-ZrO2, and cellulose and TiO2-ZrO2 nanocomposite, in 15.50%, 20.20%, 35.20%, and 45.50% yields, respectively. The best yield of 5-EMF was 45.50%, with reaction conditions of 1:1 TiO2–ZrO2 ratio, 4 h reaction time, and 160 °C reaction temperature. The use of nanocellulose biopolymer generated from Sengon sawdust waste in Indonesia provides a promising catalyst support material as an alternative green catalyst. In addition, the glucose carbohydrates can be converted to biofuel feedstocks in the development of a renewable alternative energy. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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“…The catalytic activity of the catalyst in the esterification of oleic acid to fatty acid methyl esters (FAMEs) was determined according to our previous studies. 2,14,16 The amount of residual acid remaining after the esterification reaction was then measured to determine the percent conversion to biodiesel.…”

Section: Introductionmentioning

confidence: 99%

SYNTHESIS OF MgFe2O4-MgO NANOCOMPOSITE: INFLUENCE OF MgO ON THE CATALYTIC ACTIVITY OF MAGNESIUM FERRITE IN BIODIESEL PRODUCTION

Helmiyati¹,

Abbas²,

Ramadhani³

2020

RJC

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A novel magnetic solid base catalyst consisting of an MgFe 2 O 4 -MgO nanocomposite was successfully prepared by synthesizing magnesium ferrite (MgFe 2 O 4 ) as the catalyst support, and it was employed in an esterification reaction for the production of biodiesel. MgFe 2 O 4 was synthesized by a ball-milling mechanochemical method at various furnace temperatures (350°C, 550°C and 750°C), and the best results were obtained at 750°C. The results of TEM revealed an average size of 39 nm. A nanocomposite of MgFe 2 O 4 -MgO was successfully synthesized in this study, as confirmed by Fourier transform infrared (FTIR), X-ray diffraction (XRD), scanning electron microscopy-energy dispersive x-ray (SEM-EDX) and transmission electron microscopy (TEM) characterization. The results of the FTIR characterization revealed peaks with wavenumbers corresponding to Mg-O and Fe-O bonds in the range of 500-900 cm -1 , SEM mapping showed that MgO was distributed on the surface of the MgFe 2 O 4 catalyst support, and the MgFe 2 O 4 -MgO average size was found to be 50 nm by TEM. The influence of MgO on MgFe 2 O 4 was determined by varying the molar ratio of MgFe 2 O 4 to MgO from 1: 1, 1: 2 and 1: 3 and by studying the catalytic activity in the esterification of oleic acid to biodiesel. The best MgFe 2 O 4 -MgO nanocomposite have a molar ratio of 1: 2 and gave a percent conversion of 96.089%. Impregnating MgFe 2 O 4 with MgO increased the number of basic active sites, thereby increasing the catalytic activity. This type of nanocomposite is a promising new material for future catalysts.

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Preparation of cellulose/CaO-Fe2O3 nanocomposites as catalyst for fatty acid methyl ester production

Cited by 10 publications

References 21 publications

Highly efficient synthesis of biodiesel catalyzed by a cellulose@hematite-zirconia nanocomposite

Highly efficient synthesis of biodiesel catalyzed by a cellulose@hematite-zirconia nanocomposite

Cellulose and TiO2–ZrO2 Nanocomposite as a Catalyst for Glucose Conversion to 5-EMF

SYNTHESIS OF MgFe2O4-MgO NANOCOMPOSITE: INFLUENCE OF MgO ON THE CATALYTIC ACTIVITY OF MAGNESIUM FERRITE IN BIODIESEL PRODUCTION

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