Carbon Molecular Sieve Membranes Derived from Phenolic Resin with a Pendant Sulfonic Acid Group

Zhou, Weiliang; Yoshino, Makoto; Kita, Hidetoshi; Okamoto, Ken‐ichi

doi:10.1021/ie010402v

Cited by 118 publications

(60 citation statements)

References 21 publications

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“…All black carbons showed a band at 1590 cm -1 that can be attributed to stretching of -C = C-bonds formed in the carbonization process [25,26]. Characteristic bands of carboxylic group (-COOH) stretching modes at 1701cm -1 are also observed [26][27][28].…”

Section: Characterization Of the Synthesized Black Carbonsmentioning

confidence: 99%

Biodiesel wastes: An abundant and promising source for the preparation of acidic catalysts for utilization in etherification reaction

Gonçalves

Mantovani

Carvalho

et al. 2014

Chemical Engineering Journal

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Environmentally friendly sulfonated black carbon (BC) catalysts were prepared from biodiesel waste, glycerol. These black carbons (BCs) contain a high amount of acidic groups, mainly sulfonated and oxygenated groups. Furthermore, these catalysts show a high catalytic activity in the glycerol etherification reaction with tertbutyl alcohol, the activity being larger for the sample prepared with a higher glycerol:sulfuric acid ratio (1:3). The yield for mono-tert-butyl glycerol (MTBG), ditert-butyl glycerol (DTBG) and tri-tert-butyl-glycerol (TTBG) were very similar to those obtained using a commercial resin, Amberlyst-15. Furthermore, experimental results show that the carbon with the lowest acidic surface group content, BC prepared in minor glycerol:sulfuric acid ratio (10:1), can be chemically treated after carbonization to achieve an improved catalytic activity. The activity of all BCs is high and very similar, about 50% and 20% for the MTBG and DTBG + TTBG, respectively.

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Section: Characterization Of the Synthesized Black Carbonsmentioning

confidence: 99%

Biodiesel wastes: An abundant and promising source for the preparation of acidic catalysts for utilization in etherification reaction

Gonçalves

Mantovani

Carvalho

et al. 2014

Chemical Engineering Journal

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“…The pyrolysis of carbon derived precursors has been used to prepare membranes for gas separation, including phenolic resins [18][19][20][21], composite aluminaphenolic resin [22][23][24], mixed matrix alumina phenolic resign [25], polyimides [26,28] and binders used in hollow fibre preparation such as PEI and PESf [29][30][31]. Hence, this work reports the preparation and materials characterisation of MMCSS hollow fibres, in addition to gas adsorption and permeation.…”

mentioning

confidence: 99%

Mixed matrix carbon stainless steel (MMCSS) hollow fibres for gas separation

Schmeda‐Lopez¹,

Smart²,

Meulenberg

et al. 2017

Separation and Purification Technology

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“…The absorption at 1605 cm -1 is from C-H bending vibration; the absorption at 1210 cm -1 is the stretching vibration of all single bonds and some heavy atom double bonds from the S=O stretching vibration; the absorption at 1038 cm -1 represents an ether bond. Thus, -SO3H groups were loaded on the Fe3O4/C surface and contained a small amount of hydroxyl and carboxyl groups (Zhou et al 2001;Suganuma et al 2010;Shen et al 2013). Table 1 shows the elemental composition of the magnetic catalyst.…”

Section: Characterizationmentioning

confidence: 99%

Preparation of Core-Shell Structure Magnetic Carbon-Based Solid Acid and its Catalytic Performance on Hemicellulose in Corncobs

Zhang

Tan

et al. 2016

BioResources

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Solid acid catalysts show good catalytic depolymerization behavior for lignocellulose. A stable core-shell structured magnetic solid acid catalyst (MSAC), Fe3O4/C-SO3H, was prepared from glucose, concentrated sulfuric acid, and modified magnetic particles of Fe3O4, which was used as the core. The effects of the carbonization and sulfonation processes on the activity of the catalyst were investigated. The results showed that preparation conditions had great influence on the quantity of the acidic groups (sulfonic, carboxyl, and hydroxyl groups) and the stability of magnetic catalysts. The best preparation conditions for MSAC were 3 h of carbonization time, 450 °C as the carbonization temperature, 9 h of sulfonation time, and 90 °C as the sulfonation temperature. Its surface topography, functional group, chemical composition, and magnetic properties were characterized by analysis instrument. Furthermore, the catalyst was stably dispersed in the reaction system, quickly separated from the reaction system using an external field, and reused many times; 44.3% of xylose yield was obtained at 160 °C for 16 h. The catalyst was used repeatedly more than 3 times, and the recovery over 89%. The depolymerization of corncobs was achieved by magnetic catalyst, representing the depolymerization characteristics of real lignocellulose. This data can be used as a reference for the subsequent use of biomass resource.

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Carbon Molecular Sieve Membranes Derived from Phenolic Resin with a Pendant Sulfonic Acid Group

Cited by 118 publications

References 21 publications

Biodiesel wastes: An abundant and promising source for the preparation of acidic catalysts for utilization in etherification reaction

Biodiesel wastes: An abundant and promising source for the preparation of acidic catalysts for utilization in etherification reaction

Mixed matrix carbon stainless steel (MMCSS) hollow fibres for gas separation

Preparation of Core-Shell Structure Magnetic Carbon-Based Solid Acid and its Catalytic Performance on Hemicellulose in Corncobs

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