Particle Size Distribution and Yield Analysis of Different Charged Cellulose Nanofibrils Obtained by TEMPO-mediated Oxidation

Masruchin, Nanang; Amanda, Putri; Kusumaningrum, Wida Banar; Suryanegara, Lisman; Nuryawan, Arif

doi:10.1088/1755-1315/572/1/012045

Cited by 19 publications

(18 citation statements)

References 28 publications

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“…Therefore, the nanosuspensions systems of the sample CL2 and CL3 were more stable than that of the CL1. These results corresponded with previous reports showing that the higher surface charged of t-CNC had sufficient electrostatic repulsion, resulting in better aqueous dispersion [36,39].…”

Section: Resultssupporting

confidence: 92%

“…The t-CNC CL1 had lower thermal stability than the others when compared to their bleached sample. The lower thermal deterioration could be attributed to an increase in amorphous content [36].…”

Section: Resultsmentioning

confidence: 98%

“…The result was probably because P. nigra produces sulfuric acid, SO 4 2-, and Cl À as major ions [35] and some sulfate functional groups might be introduced into the surface of microfibrils. Microfibril bundles aggregate less due to the surface negative charge, which might come from the incorporated sulfate group, on their surfaces that leads to internal electrostatic repulsion [36].…”

Section: Resultsmentioning

confidence: 99%

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The comparison of the properties of nanocellulose isolated from colonial and solitary marine tunicates

Chanthathamrongsiri

Petchsomrit

Leelakanok

et al. 2021

Heliyon

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This is the first comparative of tunicate cellulose nanocrystalline (t-CNC) from colonial and solitary tunicates. The t-CNC from the colonial tunicate Eudistoma sp. (CL1) was compared with solitary tunicates Polycarpa reniformis (CL2) and Phallusia nigra (CL3). Tunicate samples were extracted by methanol. Residues from the methanol extraction were then subjected to further cellulose purification using pre-hydrolysis, kraft-cooking, bleaching, and sulfuric acid hydrolysis to yield t-CNC. The solitary tunicates yielded higher microfibril contents after the bleaching step but obtained similar t-CNC content to the colonial one after acid hydrolysis. The isolated t-CNC were characterized using Fourier transform infrared spectroscopy, X-ray diffraction, thermalgravimetric analysis, and transmission electron microscopy. Both colonial and solitary tunicates yielded cellulose type I. The pure cellulose type I was successfully isolated from solitary tunicates whereas high inorganic impurities were observed in colonial tunicates. The isolate t-CNC showed high aspect ratios. The solitary and colonial tunicates provided t-CNC with crystallinity indexes over 97% and 35%, respectively. The crystalline size of t-CNCs ranged from 55-124 Å. The thermal stability of all isolated t-CNC was slightly decreased due to the sulfate functional groups gained after acid hydrolysis. We concluded that solitary tunicates were better than colonial tunicates as a source of t-CNC preparation.

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

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The comparison of the properties of nanocellulose isolated from colonial and solitary marine tunicates

Chanthathamrongsiri

Petchsomrit

Leelakanok

et al. 2021

Heliyon

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“…The particle size during TEMPO oxidation can be changed by altering the oxidation parameters (such as the radical concentration, oxidant volume, and oxidation time) and fibrillation process. 31,32 However, we have followed the same protocol as reported earlier. 9,33 Hence, the resulting product of oxidation was highly fibrillated nanofibers with a zeta potential of −70 mV and a high aspect ratio (∼4−20 nm wide and ∼500−2000 nm long).…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

Highly Water-Tolerant TEMPO-Oxidized Cellulose Nanofiber Films Using a Maleic Anhydride/Wax Copolymer

Tamiya

Soni

Hsu

et al. 2021

ACS Appl. Polym. Mater.

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In this article, a highly water-durable film based on (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO)-oxidized cellulose nanofibers (TCNFs) was prepared through a facile process using maleic anhydride/wax copolymer (MAW)/limonene solution. In the last few decades, the expansion of thermoplastic consumption has induced serious environmental issues like soil and marine pollutants and energy resource depletion. As a replacement of existing resins, the TCNF film is one of the most promising materials because it has high mechanical properties along with lightweight, good chemical and thermal stabilities under dry conditions, and cellulose as a starting material, which is the most abundant organic polymer on earth . However, the TCNF film under humid conditions shows low mechanical strength, which is not enough to use it as a commodity item. To improve the water durability of TCNF, we attempted to develop a surface modification technique with MAW/limonene solution. By immersing in MAW/limonene solution, the water contact angle of TCNF was increased from 65°to 80°; also, its water swelling ratio was decreased from ∼6000% to 60%. Moreover, MAW-modified TCNF (M-TCNF) showed high mechanical strength (elastic modulus ∼1.8 GPa and tensile strength ∼52 MPa) in a swollen state. These results demonstrate the improvement in the water durability of the TCNF surface-modified with MAW. This contribution can help to expand the application of TCNF to various fields such as food packaging, water purification, and so on.

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“…The residue was dried to a constant weight, and the dry residue was weighed by analytical balance (c) so that the weight lost as cellulose was obtained. Meanwhile, the final residue weight is lignin (d) [20,21].…”

Section: Lignocellulose Analysismentioning

confidence: 99%

Simultaneous Effect of Ultrasonic and Chemical Treatment on the Extraction of Nanocellulose From Sugarcane Bagasse

Hisbiyah

Nurfadlilah

2021

J. Kim. Sains Apl.

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The focus of this study was the simultaneous effect of ultrasonic and chemical treatment on the extraction of nanocellulose from sugarcane bagasse. Ultrasonic waves can accelerate the dispersion process of nanocellulose particles so that extraction runs faster and is environmentally friendly. The bagasse was treated by chemical treatment with ultrasonic waves, and then the nanocellulose was prepared using acid hydrolysis with ultrasonic waves. The effect of ultrasonication was investigated. The crystallinity of sugarcane bagasse, cellulose, and nanocellulose was analyzed by X-ray diffraction. Based on the diffractogram, there was an increase in the crystallinity of nanocellulose. The chemical composition of extracted cellulose and nanocellulose was analyzed by Fourier-transformed infrared spectroscopy. The results of the analysis showed that lignin and hemicellulose were removed from the bagasse during the extraction process. The analysis results also showed that the breaking of intramolecular hydrogen and glycosidic bonds occurred during the hydrolysis process. The morphology of bagasse, cellulose, and nanocellulose was analyzed by Scanning electron microscopy. While the particle size of nanocellulose was analyzed by the Particle Size Analysis instrument. The average size of nanocellulose particles was 132.67 nm.

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Particle Size Distribution and Yield Analysis of Different Charged Cellulose Nanofibrils Obtained by TEMPO-mediated Oxidation

Cited by 19 publications

References 28 publications

The comparison of the properties of nanocellulose isolated from colonial and solitary marine tunicates

The comparison of the properties of nanocellulose isolated from colonial and solitary marine tunicates

Highly Water-Tolerant TEMPO-Oxidized Cellulose Nanofiber Films Using a Maleic Anhydride/Wax Copolymer

Simultaneous Effect of Ultrasonic and Chemical Treatment on the Extraction of Nanocellulose From Sugarcane Bagasse

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