Characterization of Cellulose by Deconvoluting the OH Valency Range in FTIR Spectra

Fengel, D.

doi:10.1515/hfsg.1992.46.4.283

Cited by 89 publications

(49 citation statements)

References 10 publications

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“…6. The broad band at 3346 cm -1 is related to the valence vibration of the hydrogen bonded O-H groups [48]. The reason for the occurrence of this band can be assigned to the O-H stretching mode of the hexagonal groups and adsorbed water.…”

Section: Ftir Analysismentioning

confidence: 95%

Adsorption capability of activated carbon synthesized from coconut shell

Islam¹,

Ang²,

Gharehkhani³

et al. 2016

Carbon letters

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Activated carbon was synthesized from coconut shells. The Brunauer, Emmett and Teller surface area of the synthesized activated carbon was found to be 1640 m 2 /g with a pore volume of 1.032 cm 3 /g. The average pore diameter of the activated carbon was found to be 2.52 nm. By applying the size-strain plot method to the X-ray diffraction data, the crystallite size and the crystal strain was determined to be 42.46 nm and 0.000489897, respectively, which indicate a perfect crystallite structure. The field emission scanning electron microscopy image showed the presence of well-developed pores on the surface of the activated carbon. The presence of important functional groups was shown by the Fourier transform infrared spectroscopy spectrum. The adsorption of methyl orange onto the activated carbon reached 100% after 12 min. Kinetic analysis indicated that the adsorption of methyl orange solution by the activated carbon followed a pseudo-second-order kinetic mechanism (R 2 > 0.995). Therefore, the results show that the produced activated carbon can be used as a proper adsorbent for dye containing effluents.

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Section: Ftir Analysismentioning

confidence: 95%

Adsorption capability of activated carbon synthesized from coconut shell

Islam¹,

Ang²,

Gharehkhani³

et al. 2016

Carbon letters

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show abstract

“…The peak positions of the four bands for hemp fibres with and without dislocations are 3450cm -1 , 3346cm -1 , 3262cm -1 and 3161cm -1 for the hemp without dislocations, and 3451cm -1 , 3350cm -1 , 3264cm -1 and 3167cm -1 for the dislocation regions. These bands are related to the valence vibration of hydrogen bonded OH groups [26]: i.e. band 1 to the intra-molecular hydrogen bond of O(2)H---O, band 2 to the intra-molecular hydrogen bond of O (3) It can be seen that the wave-numbers of peak position of dislocations are higher than those of hemp fibre without dislocation.…”

Section: Hydrogen Bonds Analysis Of Natural Celluloses By Using Ftirmentioning

confidence: 98%

“…Some mathematical methods (e.g. deconvolution [25][26][27] and second-derivative [28][29][30]) were used to identify the exact peak for hydrogen bonds. Hinterstoisser and Salmén [3,31] recently used DMA-FTIR to investigate OH stretching vibration regions between 3700 and 3000 cm −1 in the cellulose.…”

Section: Hydrogen Bonds Analysis Of Natural Celluloses By Using Ftirmentioning

confidence: 99%

Fourier Transform Infrared Spectroscopy for Natural Fibres

Fan¹,

Dai²,

Huang³

2012

Fourier Transform - Materials Analysis

405

248

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“…Hermans and Weidinger (1949) also found the so-called crystallinity derived from X-ray scattering was only 70% at most in native fibres, while the remaining percentage of the cellulose was said to be 'amorphous'. Degree of crystallinity may also be estimated by infrared spectroscopy on the basis of the relative height of certain bands (Fengel, 1992). Thus, the lower density found in natural fibre may be attributed to the presence of amorphous or less ordered cellulose.…”

Section: Density and Degree Of Crystallinitymentioning

confidence: 99%

A review on systematic study of cellulose

Gautam

Bundela

Pandey

et al. 2010

JANS

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This review attempts to bring together basic and systematic information which has been gathered on cellulose structure, types, principally that of native cellulose, over the last few decades. Even though advances have been made in the field of crystallography, powder crystallography cannot yield a definitive cellulose structure and single crystal diffraction is not possible due to the lack of suitable crystals. Knowledge obtained on the biosynthesis of native cellulose and on the polymorphy of cellulose and its derivatives help our understanding of ultrastructure. Many inconsistencies between early crystallographic studies of native cellulose have been clarified by the discovery that two polymorphs (α and β) of cellulose I exist. Models of the possible ultrastructural arrangements within native cellulose have been put forward over the decades; with advancement in technology, computer simulations of small and large systems are being created to test the viability of these ultrastructural models. It is hoped that this review will aid in the understanding of the complexity and uncertainties that still exist in this subject.

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Characterization of Cellulose by Deconvoluting the OH Valency Range in FTIR Spectra

Cited by 89 publications

References 10 publications

Adsorption capability of activated carbon synthesized from coconut shell

Adsorption capability of activated carbon synthesized from coconut shell

Fourier Transform Infrared Spectroscopy for Natural Fibres

A review on systematic study of cellulose

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