Functionalized cellulose-magnetite nanocomposite catalysts for efficient biodiesel production

El‐Nahas, Ahmed M.; Salaheldin, Taher A.; Zaki, Tamer A.; El-Maghrabi, Heba H.; Marie, Asmaa M.; Morsy, Somia M.; Allam, Nageh K.

doi:10.1016/j.cej.2017.04.031

Cited by 65 publications

(43 citation statements)

References 90 publications

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“…The cellulose was modified into nanocellulose using a mechanical ball mill, and was then functionalized by using anhydrous acetate to form acetylated nanocellulose (Sun et al, 2016;Nahas et al, 2017) with slight modification. An amount of nanocellulose in deionized water was mixed with a magnetic stirrer for 1 hour at room temperature at pH 8 by adding NaOH.…”

Section: Preparation Of Acetylated Nanocellulosementioning

confidence: 99%

“…Esterification and transesterification are important organic reactions between fatty acids or triglycerides and low-chain alcohols, which produce esters in the presence of a catalyst. The fatty acids and triglycerides that are used can be derived from vegetable oils or animal fats, such as free fatty acids (El-Nahas et al, 2017). Currently, biodiesel is produced commercially using homogeneous catalysts such as sulfuric acid and sodium hydroxide as these strong acids or bases have high catalytic activity and low cost.…”

Section: Introductionmentioning

confidence: 99%

“…Modification of the cellulose surface functionalization can be made by acetylation (Sun et al, 2016) or phosphorylation (Wanrosli et al, 2013), among other processes. Functionalized nanocellulose combined with inorganic nanoparticles can form superior nanocomposites (El-Nahas et al, 2017) In this study, cellulose is derived from rice husks, which have a large cellulose content (Helmiyati et al, 2017). We converted the cellulose to nanocellulose by mechanical ball milling, whereas previous studies used chemical methods (Nahas et al, 2017), and then acetylated it with anhydrous acetate to functionalize the surface.…”

Section: Introductionmentioning

confidence: 99%

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Nanocomposites Comprising Cellulose and Nanomagnetite as Heterogeneous Catalysts for the Synthesis of Biodiesel from Oleic Acid

Helmiyati

Anggraini

2019

IJTech

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A nanocomposite comprising cellulose and nanomagnetite based on rice husk cellulose was used as the catalyst for the formation of methyl esters from oleic acid as an alternative method for biodiesel production. The resulting nanocomposite properties supported by FTIR, XRD, SEM and TEM characterization revealed that nanomagnetite Fe3O4 had impregnated the acetylated nanocellulose. The nanomagnetite Fe3O4 obtained had an average size of 30 nm. The best conversion of oleic acid to methyl esters for the catalytic application of the nanocomposite was 89.21%, which was achieved at a reaction temperature of 60°C, reaction time of 5 hours, catalyst concentration of 1.5 wt.%, and ratio of oleic acid to methanol of 3:1. Kinetic analysis at different temperatures (40, 50, 60 and 70°C) was performed, and a low activation energy of 16.56 kJ/mole was obtained. These results indicate that the biopolymer-based nanocomposite utilizing nanocellulose from rice husks composited with inorganic Fe3O4 nanoparticles has good potential for use as a green biocatalyst, and the proposed reaction can be used as an innovative new method to produce biodiesel in the future.

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Section: Preparation Of Acetylated Nanocellulosementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nanocomposites Comprising Cellulose and Nanomagnetite as Heterogeneous Catalysts for the Synthesis of Biodiesel from Oleic Acid

Helmiyati

Anggraini

2019

IJTech

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“…9 NCC has been extensively researched as key components in the design of super capacitors, [10][11][12] aerogels, 13 sensors, 14 pharmaceuticals, 15 chiral materials 16 and catalysts. 17 They are generated by the removal of amorphous regions of different sources of cellulose using acid hydrolysis, enzymatic or mechanical treatments. As a functional derivative of NCC, carboxylated nanocrystalline cellulose (CNCC) possesses better dispersibility and stability compared to NCC because of high density of carboxyl groups on its surface.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Detection of Nitrite in Food Based on Poly (3,4-ethylenedioxythiophene) Doped with Fe3O4 Nanoparticles Loaded Carboxylated Nanocrystalline Cellulose

Zhang²,

Yu³

2018

ACSi

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Carboxylated nanocrystalline cellulose (CNCC) was prepared by oxidation degradation of microcrystalline cellulose (MCC) using ammonium peroxydisulfate and modified with Fe 3 O 4 nanoparticles to form Fe 3 O 4-CNCC nanocomposite via simple refluxing process. The Fe 3 O 4-CNCC nanocomposite doped poly(3,4-ethylenedioxythiophene) (PEDOT) was successfully decorated on the glassy carbon electrode (GCE) by electrochemical deposition. The PEDOT/Fe 3 O 4-CNCC modified GCE with enlarged real electrochemical surface area was used to determine nitrite with high selectivity, sensitivity and outstanding reproducibility. Using amperometric current-time (i-t) curve, the proposed sensor provided a wider linear range (0.5-2500 μM) and a lower detection limit (0.1 μM) towards nitrite compared with the method of differential pulse voltammetry (DPV). This analytical method gave good selectivity in the practical measurement of nitrite in pickles.

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“…The catalytic activity of magnetite can be considerably enhanced by reducing the particle size to the nanometer scale. It has been demonstrated that magnetite nanoparticles exhibit high catalytic activity for the esterification of oleic acid with methanol in the production of methyl oleate (biodiesel) (El-Nahas A.M. et al, 2017). These particles can also be used as promising electrode materials for electrochemical energy storage systems, such as Li-ion batteries and supercapacitors (Cheng J. et al, 2012;Liu J. et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Progress in the Preparation of Magnetite Nanoparticles through the Electrochemical Method

Setyawan

Widiyastuti

2019

KONA

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Magnetite (Fe 3 O 4 ) is one of the most important iron oxides due to its extensive range of application in various fields. The characteristics of magnetite can be considerably enhanced by reducing the particle size to the nanometer scale. When novel functions of nanoparticles are desired, it is necessary to have monodispersed or nearly monodispersed nanoparticles. Many synthesis methods have been proposed to produce monodispersed magnetite nanoparticles, including co-precipitation, sol-gel, hydrothermal and electrochemical methods. In this review, progress in the preparation of magnetite nanoparticles and their composites through the electrochemical method and the scale-up method are discussed.

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Functionalized cellulose-magnetite nanocomposite catalysts for efficient biodiesel production

Cited by 65 publications

References 90 publications

Nanocomposites Comprising Cellulose and Nanomagnetite as Heterogeneous Catalysts for the Synthesis of Biodiesel from Oleic Acid

Nanocomposites Comprising Cellulose and Nanomagnetite as Heterogeneous Catalysts for the Synthesis of Biodiesel from Oleic Acid

Electrochemical Detection of Nitrite in Food Based on Poly (3,4-ethylenedioxythiophene) Doped with Fe3O4 Nanoparticles Loaded Carboxylated Nanocrystalline Cellulose

Progress in the Preparation of Magnetite Nanoparticles through the Electrochemical Method

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