Cellulose and Nanocellulose from Maize Straw: An Insight on the Crystal Properties

Rehman, Noor; Miranda, Maria Inez Graf de; Rosa, Simone Maria Leal; Pimentel, Débora M.; Nachtigall, Sônia Marlí Bohrz; Bica, Clara Isméria Damiani

doi:10.1007/s10924-013-0624-9

Cited by 45 publications

(36 citation statements)

References 53 publications

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“…Alpha-cellulose spectrum shows peaks at 3354 cm -1 (O-H stretch), 2902 cm -1 (C-H sp3 stretch), 1641 cm -1 (absorbed H 2 O bending), 1429 cm -1 (CH scissoring bending), 1160 cm -1 (C-O ether stretch), 1110 cm -1 (C-O stretch 2 o alcohol), 1057 cm -1 (C-O stretch 1 o alcohol). Presence of lignin can be noticed by adsorbed peaks at 1500-1600 cm -1 and 1220 cm -1 due to aromatic C=C and C-O phenolic bonds; And also hemicellulose shows C=O stretch bond at 1715-1730 cm -1 (Viera et al, 2007;Moran, Alvarez, Cyras, & Va´zquez, 2008;Rehman et al, 2013;Yan, Villarreal, & Xu, 2013;Kardam, Rohit Raj, Srivastava, & Srivastava, 2014). Presence of mentioned peaks in impurity FTIR spectrum (Figure 4.c), and absence of these peaks in cellulose FTIR, shows our method is able to extract lignin and hemicellulose, which leads to purer cellulose.…”

Section: Characterization Of Alpha-cellulose and Cmcmentioning

confidence: 74%

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Ultrasonic mediated production of carboxymethyl cellulose: Optimization of conditions using response surface methodology

Hivechi

Bahrami

Arami

et al. 2015

Carbohydrate Polymers

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Section: Characterization Of Alpha-cellulose and Cmcmentioning

confidence: 74%

“…Reported results in recent researches show that lignin and hemicellulose start to decompose at 200 o C (Rehman et al, 2013;Sun & Sun, 2002). For this reason TGA analyses of raw material and extracted alpha cellulose were studied.…”

Section: Figure 2 Ftir Spectrum Of (A) Purified Cellulose (B) Prepamentioning

confidence: 99%

Ultrasonic mediated production of carboxymethyl cellulose: Optimization of conditions using response surface methodology

Hivechi

Bahrami

Arami

et al. 2015

Carbohydrate Polymers

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“…It is believed that the cellulosic materials degrade at low to moderate temperature [18,42]. In general, the thermal decomposition of cellulosic materials begins at lower temperature for hemicelluloses followed by an early stage of pyrolysis of lignin and then decomposition of cellulose [43].…”

Section: Thermal Analysismentioning

confidence: 99%

“…The CNC can be separated by acid hydrolysis of pure cellulosic fibers or micro fibrillated cellulose [11,17,18]. The most common acid used is the sulphuric acid [13,[16][17][18][19][20], which was used for the first time by…”

Section: Introductionmentioning

confidence: 99%

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Valorization of Agricultural Wastes in Morocco: Extraction of Cellulose Nanocrystals From Sugarcane Bagasse Fibers as Case Study

2016

Jour. Mater. Sci. Eng. Adv. Tech.

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Sugar production is a main agro-based industry in Morocco that generates various solid wastes. The sugarcane bagasse is one of the important wastes of this industry, which is mainly used in combustion for energy production within the sugar production plant. It is very interesting to valorize this waste for the production of high value added nanomaterials. The aim of this work is to isolate of cellulose nanocrystals (CNC) from Moroccan sugarcane bagasse (SCB) by chemical methods. The pure cellulose was produced via alkaline and bleaching NASSIMA EL MIRI et al. 64 treatments, hence suitable for extracting of CNC. Acid hydrolysis process has been used to isolate the CNC using sulphuric acid at a concentration of 9M for 30 min and hydrochloric acid at two concentrations of 2M and 3M for 120 min.Several techniques, including Fourier transformed infrared, X-ray diffraction, thermogravimetric analysis, scanning electron microscopy, and atomic force microscopy; were used to characterize the products at different stages of treatment. The effect of acid type, hydrolysis time and acid concentration on the morphology, dimensions, crystallinity, and thermal stability of CNC has been evaluated and discussed through this work. The obtained results show that the as-extracted CNC exhibit needle-like nanoparticles with a diameter range of 3-25nm and a length of 100-400nm depending on the hydrolysis conditions. This work is achieved in order to valorize the sugarcane bagasse that growth in Morocco in large quantity, which is mainly used actually in combustion for electricity production. In overall, the CNC obtained from Moroccan sugarcane bagasse have excellent properties and can be potentially used in various applications.

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Facile cellulose nanofibrils amidation using a ‘one-pot’ approach

2016

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Cellulose and Nanocellulose from Maize Straw: An Insight on the Crystal Properties

Cited by 45 publications

References 53 publications

Ultrasonic mediated production of carboxymethyl cellulose: Optimization of conditions using response surface methodology

Ultrasonic mediated production of carboxymethyl cellulose: Optimization of conditions using response surface methodology

Valorization of Agricultural Wastes in Morocco: Extraction of Cellulose Nanocrystals From Sugarcane Bagasse Fibers as Case Study

Facile cellulose nanofibrils amidation using a ‘one-pot’ approach

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