A study on the effect of heat treatment on functional groups of pitch based activated carbon fiber using FTIR

Shin, Seunghan; Jang, Jyongsik; Yoon, Seong Ho; Mochida, Isao

doi:10.1016/s0008-6223(97)00132-2

Cited by 337 publications

(156 citation statements)

References 10 publications

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“…Moreover, the band at 1440 cm -1 may correspond to the O-H bending band. In the region (1400-1600) cm -1 , there are clusters of complex bands, which may be due to the presence of aromatic (C=C) bands and various substitution modes of the aromatic rings [55]. The broad band at 1150 cm -1 has been assigned to C-O single bonds such as those in ethers, phenols, acids and esters [50,51].…”

Section: Adsorption Of Methyl Orange By the Synthesized Activated Carbonmentioning

confidence: 99%

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Adsorption capability of activated carbon synthesized from coconut shell

Islam¹,

Ang²,

Gharehkhani³

et al. 2016

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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: Adsorption Of Methyl Orange By the Synthesized Activated Carbonmentioning

confidence: 99%

“…The sharp peak at 1046 cm -1 represents the alcoholic C-O stretching vibration [55]. Bands below 950 cm -1 correspond to the out-of-plane deformation vibrations of the C-H groups in the aromatic structure [49,56].…”

Section: Adsorption Of Methyl Orange By the Synthesized Activated Carbonmentioning

confidence: 99%

Adsorption capability of activated carbon synthesized from coconut shell

Islam¹,

Ang²,

Gharehkhani³

et al. 2016

Carbon letters

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“…is attributed to C=O bands characteristic of carboxyl functional groups (-COOH) and of ketone/quinine [14][15][16]. It has also been reported [13] that the band in the range of 1590-1570 cm −1 can be assigned to a combined band due to the aromatic ring mode of conjugated systems (diketone, ketoester, and carboxylate structures) and the absorption band at 1150 cm -1 is assigned to -C-O and -OH bonds in ether lactones, carboxyl, and phenolic structures.…”

Section: Methodsmentioning

confidence: 99%

Effect of surface modification of carbon felts on capacitive deionization for desalination

Lee¹,

Ahn²,

Cho³

et al. 2015

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Surface modified carbon felts were utilized as an electrode for the removal of inorganic ions from seawater. The surfaces of the carbon felts were chemically modified by alkaline and acidic solutions, respectively. The potassium hydroxide (KOH) modified carbon felt exhibited high Brunauer-Emmett-Teller (BET) surface areas and large pore volume, and oxygencontaining functional groups were increased during KOH chemical modification. However, the BET surface area significantly decreased by nitric acid (HNO 3 ) chemical modification due to severe chemical dissolution of the pore structure. The capability of electrosorption by an electrical double-layer and the efficiency of capacitive deionization (CDI) thus showed the greatest enhancement by chemical KOH modification due to the appropriate increase of carboxyl and hydroxyl functional groups and the enlargement of the specific surface area.

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“…In structural change following the burning process of phenolic resin, the formation of C=O structure starts at 573 K of burning temperature. 9) Since the wave number around 1210 cm À1 is considered the stretching vibration of C=O, this peak seems to have reflected the formation of C=O structure in the burning process of phenolic resin. 9) When the burning temperature was raised to 673 K, the peak of the stretching vibration of OH group at near 3400 cm À1 and that of CH group at near 2900 cm À1 considerably decreased.…”

Section: Elemental Analysismentioning

confidence: 99%

“…9) Since the wave number around 1210 cm À1 is considered the stretching vibration of C=O, this peak seems to have reflected the formation of C=O structure in the burning process of phenolic resin. 9) When the burning temperature was raised to 673 K, the peak of the stretching vibration of OH group at near 3400 cm À1 and that of CH group at near 2900 cm À1 considerably decreased. The peak of CH group at near 2900 cm À1 seemed consisting of 2860 cm À1 and 2920 cm À1 of aliphatic CH group and 3020 cm À1 of aromatic CH group.…”

Section: Elemental Analysismentioning

confidence: 99%

Fourier Transformation Infrared Spectrophotometry and Elemental Analysis of Woodceramics

et al. 2004

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In recent years, solving environmental problems have been looked forward from various viewpoints. In the materials development, practical applications of Ecomaterials are desired. Ecomaterials such as Woodceramics is a material in harmony with ecosystem in consideration of material circulation, and is promising for application to various fields such as moisture sensor and electromagnetic shielding materials and so on. To clarify the structure and thermophysical characteristics of Woodceramics, we used Fourier transformation infrared spectrophotometry and elemental analysis to examine the variation due to differences in raw materials and burning temperatures. It is shown that the carbonizing process of Woodceramics can be classified to three ranges, and that the advancement of graphite crystallization starts from around 1073 K of burning temperature.

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A study on the effect of heat treatment on functional groups of pitch based activated carbon fiber using FTIR

Cited by 337 publications

References 10 publications

Adsorption capability of activated carbon synthesized from coconut shell

Adsorption capability of activated carbon synthesized from coconut shell

Effect of surface modification of carbon felts on capacitive deionization for desalination

Fourier Transformation Infrared Spectrophotometry and Elemental Analysis of Woodceramics

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