Preparation and Characterization of Carboxymethyl Cellulose with a High Degree of Substitution from Agricultural Wastes

Mοussa, Ibtissem; Khiari, Ramzi; Moussa, Ali; Belgacem, Mohamed Naceur; Mhenni, Mohamed Farouk

doi:10.1007/s12221-019-8665-x

Cited by 37 publications

(13 citation statements)

References 30 publications

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“…The peak at 2926 cm −1 was attributed to the stretching vibration of alkyl (C‐H); the peak at 1043 cm −1 corresponded to the stretching of >CH‐O‐CH 2 . And there was a broad ‐OH diffraction peak at 3451 cm −1 36 . As can be seen from Figure 3B, the peak at 598 cm −1 was the characteristic peak of Fe‐O, which proved that Fe 3 O 4 was well synthesized 37 .…”

Section: Resultsmentioning

confidence: 71%

“…And there was a broad -OH diffraction peak at 3451 cm −1 . 36 As can be seen from Figure 3B, the peak at 598 cm −1 was the characteristic peak of Fe-O, which proved that Fe 3 O 4 was well synthesized. 37 In addition, the two stretching vibration peaks of carboxylic acid bond moved to the long-wave direction, from 1401 cm −1 and 1650 cm −1 to 1396 cm −1 and 1616 cm −1 , respectively.…”

Section: Ft-ir Analysismentioning

confidence: 58%

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Synthesis of magnetic carboxymethyl cellulose/graphene oxide nanocomposites for adsorption of copper from aqueous solution

et al. 2020

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Summary In this study, a green and high‐efficiency adsorbent was synthesized. First, magnetic cellulose (Fe3O4/CMC) was prepared by coprecipitation method and then it was compounded with functional graphene oxide (GO) to prepare magnetic cellulose‐supported GO composite (Fe3O4/CMC/GO). As prepared composite was characterized by Fourier transform infrared spectroscopy, X‐ray diffractometer, thermogravimetric, scanning electron microscope, Brunner‐Emmett‐Teller, and vibrating sample magnetometer. The adsorption properties were studied, and the effects of time, temperature, pH, and initial concentration on the adsorption process were investigated. The adsorption mechanism was also discussed. The results showed that the pseudo‐second‐order kinetic model and the Langmuir model were more consistent with the adsorption process of Cu2+ by adsorbents. The whole adsorption process was a spontaneous endothermic process, and the adsorption capacity reached the maximum (199.98 mg·g−1) when the pH was 6 to 7, the initial concentration was 200 mg·L−1, and the temperature was 318 K. The high adsorption rate (86.68%) can still be achieved after 5 cycles of adsorption‐desorption with 1 mol·L−1 dilute hydrochloric acid as eluent.

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Section: Resultsmentioning

confidence: 71%

Section: Ft-ir Analysismentioning

confidence: 58%

Synthesis of magnetic carboxymethyl cellulose/graphene oxide nanocomposites for adsorption of copper from aqueous solution

et al. 2020

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“…The substitution degree (DS) is one of the major factors affecting the physicochemical behavior of CMCNa, which consequently leads to its many diversified applications, such as thickener, emulsion stabilizer, fat replacer in meat, binder, and film-forming properties. [16][17][18] Moreover, concerning the safety of human health and the environment, CMCNa is biocompatible, biodegradable, and nontoxic. The mucilage extracted from the cladodes of OFI is a hetero-polysaccharide with a molecular weight varying from 2.3×10 4 to 3×10 6 g mol -1 , being a complex mixture of polysaccharides, L-arabinose (24.6-42 %), D-galactose (21-40.1 %), D-xylose (22-22.2 %), L-rhamnose (7-13.1 %) and D-galacturonic acid (8--12.7 %).…”

Section: Introductionmentioning

confidence: 99%

The use of mucilage extracted from Opuntia ficus indica as a microencapsulating shell

et al. 2021

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This study aimed to investigate the micro-formulation of capsules, using natural biopolymers such as cactus mucilage (CM), carboxymethyl cellulose sodium salt (CMCNa) and chitosan (Chi) as a wall material, for the transport and supply of sunflower oil. CM samples were extracted from Opuntia ficus indica (OFI) by precipitation at different supernatant pH values (2, 4, and 12). The extracted natural polysaccharide and the resulting microcapsules were characterized by different experimental techniques. Fourier transform infrared spectroscopy (FTIR) analysis of the CM showed the presence of uronic acid units and sugars. Scanning electron microscopy (SEM) revealed that most particles were adhered together, causing the formation of compact, linked agglomerates, which resulted in different microstructures with irregular shapes. All oil-core microcapsules were characterised, and the results showed that the different shell materials could be used to microencapsulate sunflower oil. Among them, the microcapsule crosslinked with the CM and Chi was the most suitable, with the highest encapsulation efficiency (95 %). This coacervation led to the narrowest size distribution of capsules, with diameters ranging from 1 to 5 ?m. Optical microscopy confirmed the deposition of coacervate droplets around oil drops and clearly showed that the formation of coacervated particles and their deposition onto oil droplets were successive events.

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“…A reduction of the environmental impact, along with obtaining high profit, can be achieved by an efficient utilization of such agricultural wastes. [1][2][3] In lignocellulosic materials, different constituents, such as hemicelluloses, lignin and pectin, act as noncellulosic cementing materials to make a composite structure embedding the cellulose fiber. [3][4][5] The cellulose polymer is the main component of lignocellulosic fibers.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] In lignocellulosic materials, different constituents, such as hemicelluloses, lignin and pectin, act as noncellulosic cementing materials to make a composite structure embedding the cellulose fiber. [3][4][5] The cellulose polymer is the main component of lignocellulosic fibers. Cellulose has potential applications within different industries, including cosmetics, food industry, construction, electronic materials and pharmaceutical applications, in which the fibers are utilized as thickener, stabilizer, fat replacer, composite, texturizing agent or carrier for bioactive ingredients etc.…”

Section: Introductionmentioning

confidence: 99%

Application Possibility of Electrohydrodynamic Technique for Cellulose Extraction From Bagasse: Optimization Using Response Surface Methodology

Harchegani¹,

Nasirpour²,

Ahmadzadeh³

et al. 2019

Cellulose Chem. Technol.

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This study describes a promising alternative extraction process called electrohydrodynamic technique (EHD), used to extract cellulose from bagasse. The effects of EHD treatment time and heating time on cellulose extraction were investigated. The extraction conditions were then optimized using response surface methodology. The highest cellulose extraction yield was obtained when both independent variables were at their highest level (EHD: 2 h; heating: 3 h). A larger hydrodynamic size of cellulose was achieved under the optimum conditions, confirming the amorphous structure of cellulose created under the effect of EHD. Fourier-transform infrared spectroscopy was used to investigate the distribution of hydrogen bond types. The content of inter-and intra-molecular hydrogen bonds was altered when EHD was used for cellulose extraction. EHD significantly affected the composite-like structure of bagasse, which subsequently led to a higher cellulose extraction yield, and transition of crystalline to amorphous structure due to the disruption of the hydrogen bond network.

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Preparation and Characterization of Carboxymethyl Cellulose with a High Degree of Substitution from Agricultural Wastes

Cited by 37 publications

References 30 publications

Synthesis of magnetic carboxymethyl cellulose/graphene oxide nanocomposites for adsorption of copper from aqueous solution

Synthesis of magnetic carboxymethyl cellulose/graphene oxide nanocomposites for adsorption of copper from aqueous solution

The use of mucilage extracted from Opuntia ficus indica as a microencapsulating shell

Application Possibility of Electrohydrodynamic Technique for Cellulose Extraction From Bagasse: Optimization Using Response Surface Methodology

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