Preparation and Characterization of Nanowhiskers Cellulose from Fiber Arrowroot (Maranta arundinacea)

Sá, Renato Mariano de; Miranda, Cleidiene Souza de; José, Nadia Mamede

doi:10.1590/1516-1439.366214

Cited by 21 publications

(6 citation statements)

References 14 publications

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“…The C-O vibration stretching resulted from the uronic and acetyl ester groups; from hemicellulose, pectin or the ester of carboxylic group of p-coumaric and ferulic acids of hemicellulose or lignin. C-O-C pyranose ring was attributed to the structure of cellulose its stretching vibration is at 1058.9 cm −1 [20]. In cellulosic samples, the spectral ratio of 1431.18 cm −1 provides the evidence of containing cellulose (Fig.…”

Section: Ftir Analysismentioning

confidence: 96%

Synthesis and characterization of cotton fiber-based nanocellulose

Thirugnanasambandan

Christma

Toyin

et al. 2018

International Journal of Biological Macromolecules

122

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Nanocellulose prepared from the natural material has a promising wide range of opportunities to obtain the superior material properties towards various end-products. In this research, commercially available natural cotton was treated with aqueous sodium hydroxide solution to eliminate the hemicellulose and lignin, then cellulose was collected. The collected cellulose was subjected to acid hydrolysis using sulfuric acid to obtain nanocellulose. The prepared nanocellulose was further characterized with the aid of Fourier transform infrared spectroscopy, X-ray diffraction and Scanning Electron Microscopy to elucidate the chemical structure, crystallinity and the morphology.

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Section: Ftir Analysismentioning

confidence: 96%

Synthesis and characterization of cotton fiber-based nanocellulose

Thirugnanasambandan

Christma

Toyin

et al. 2018

International Journal of Biological Macromolecules

122

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“…The production of cellulose nanocrystals from different lignocellulosic fibers has attracted interest in the scientific and industrial community in recent years. This has been owing to their mechanical and thermal properties, cost effectiveness, and versatility [20,21] . Nanocrystals are generally characterized by high solidity and crystallinity, which afford sustainability.…”

Section: Introductionmentioning

confidence: 99%

Production of biodegradable starch nanocomposites using cellulose nanocrystals extracted from coconut fibers

et al. 2017

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“…This procedure ensures the removal of all residual NaOH in the fiber. The samples were then dried in an oven at 100°C until reaching a constant mass (Sá, Miranda & José, 2015;Miranda, Fiuza, Carvalho & José, 2015).…”

Section: Pretreatment Of Coconut Fibersmentioning

confidence: 99%

Estudo cinético e de equilíbrio de adsorção de petróleo utilizando fibras de coco pré-tratadas

Cardoso¹,

Santana²,

Silva³

et al. 2020

RSD

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The recent oil spill off the Brazilian coast serves as an alert for research to be carried out that includes biotechnological processes and products for cleaning marine environments. Therefore, this work aims to compare the use of residual coconut fibers (Cocos nucifera L.) in natura, pretreated with Protic Ionic Liquid (PIL) [2-HEA] [Ac] (innovative treatment) and by mercerization/acetylation (traditional treatment) as a biosorbent of petroleum spilled in the marine environment in a hydrodynamic simulation on a laboratory scale. The study of the kinetics and adsorption equilibrium were performed to determine the limiting mechanism of adsorption, as well as the maximum petroleum adsorption capacity for the coconut fibers studied. Characterizations of the fibers were carried out using SEM and FITR, and the kinetics and sorption equilibrium tests with petroleum from the Campos Basin and saline water. It was possible to observe that a minimum time of 5 min of contact between the adsorbent and adsorbent is necessary for biosorption to occur. The fibers treated with PIL (4.63 g/g) had greater sorption capacity, the fiber in natura (3.62 g/g) less capacity and the fiber with mercerization/acetylation treatment (4.26 g/g) has sorption with intermediate values. The kinetic model that best fitted the experimental data was pseudo-second order, indicating chemosorption as the limiting step of adsorption. The sorption equilibrium model chosen was Sips, determining adsorption in multilayer (Freundlich) with low concentrations of petroleum and in monolayer (Langmuir) with high concentrations. Based on these results, it can be said that the coconut fibers (Cocos nucifera L.) treated have a greater capacity to adsorb petroleum than the fibers in natura, and the fibers treated with PIL [2-HEA][Ac] have greater sorption capacity, among those evaluated, to be used in oil spills.

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Preparation and Characterization of Nanowhiskers Cellulose from Fiber Arrowroot (Maranta arundinacea)

Cited by 21 publications

References 14 publications

Synthesis and characterization of cotton fiber-based nanocellulose

Synthesis and characterization of cotton fiber-based nanocellulose

Production of biodegradable starch nanocomposites using cellulose nanocrystals extracted from coconut fibers

Estudo cinético e de equilíbrio de adsorção de petróleo utilizando fibras de coco pré-tratadas

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