2012
DOI: 10.1557/jmr.2012.360
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Preparation of a sulfonated activated carbon fiber catalyst with γ-irradiation-induced grafting method

Abstract: A sulfonated activated carbon fiber catalyst (SACF) was prepared through c-irradiation-induced grafting of styrene onto the surface of activated carbon fiber (ACF) with an irradiation dose of 0.837 kGy/h for 48 h that was then sulfonated with chlorosulfonic acid under mild reaction conditions. Scanning electron microscopy observation showed that the ACF was wrapped by a thin layer of copolymer, and Fourier transfer infrared spectroscopy analysis indicated that sulfonic acid groups were successfully introduced … Show more

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Cited by 21 publications
(8 citation statements)
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“…The flat bands in 1063~1122 cm -1 range correspond to the peak at 1117 cm -1 in the IR spectrum of p-MWCNTs. Two new characteristic peaks at 1182 and 1043 cm -1 can be assigned to the -SO 3 H groups asymmetric and symmetric vibrational absorption [15,21]. These new representive absorption peaks indicate that sulfonic acid groups were successfully grafted onto the surface of MWCNTs by this method.…”
Section: Measurement Of Colloids Stability Of Mwcntsmentioning
confidence: 86%
“…The flat bands in 1063~1122 cm -1 range correspond to the peak at 1117 cm -1 in the IR spectrum of p-MWCNTs. Two new characteristic peaks at 1182 and 1043 cm -1 can be assigned to the -SO 3 H groups asymmetric and symmetric vibrational absorption [15,21]. These new representive absorption peaks indicate that sulfonic acid groups were successfully grafted onto the surface of MWCNTs by this method.…”
Section: Measurement Of Colloids Stability Of Mwcntsmentioning
confidence: 86%
“…presents the comparison between suphonated activated carbon-based catalysts and the catalyst produced in the present study. Li et al47 reported a low biodiesel conversion percentage of 75% with high catalyst loading (20 wt%) under high reaction temperature (80 C) at 3 h. The FAME yield was inuenced by the reaction conditions, as stated by Bureros et al48 A typical rise in biodiesel yield (93%) when the time was increased to 24 h was demonstrated. However, the catalytic activity of cacao shellderived solid acid catalyst declined aer four consecutive runs.Huang et al49 identied a 95.4% conversion rate at a high reaction time of 7 h. By contrast, the present study achieved a 96% conversion rate in less than 2-3 h. The catalytic activity of the pyrolyzed lignin sulphonated catalyst declined aer ve cycles probably because of the leaching of the -SO 3 H groups linked with relatively unstable aliphatic groups.…”
mentioning
confidence: 83%
“…To analyze the acid functional groups (-SO 3 H) impregnated on carbon surface, the vibration bands at about 1100-1200 cm −1 are usually detected by FTIR [24][25][26][27]. This -SO 3 H functional group was quantified by the ionexchanged titration method, resulting in 5.5 mol H + g −1 .…”
Section: Catalyst Characterizationmentioning
confidence: 99%