Composites prepared from silica gel and furfuryl alcohol with p-toluenesulfphonic acid as the catalyst

Príncipe, Martha; Suárez, Heidi; Jimenez, Guillermo H.; Martı́nez, Ricardo; Spange, Stefan

doi:10.1007/s00289-006-0701-5

Cited by 8 publications

(6 citation statements)

References 7 publications

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“…CSCs have been prepared with a wide range of chemicals or polymers such as hydrocarbon gas (C 3 H 6 ) [29], ( poly)furfural alcohol (PFA), furfuryl alcohol ( plus acid catalyst) [30] and dichloromethane as the carbon source [31]. However, many of these carbon sources are costly, potentially toxic or lead to toxic by-products during carbonization.…”

Section: Introductionmentioning

confidence: 99%

Graphitic mesoporous carbon-silica composites from low-value sugarcane by-products for the removal of toxic dyes from wastewaters

et al. 2020

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Highly porous carbon-silica composites (CSC) were prepared for the first time through a simple wet impregnation process and subsequent pyrolysis of low-value sugarcane by-products, namely molasses. These CSC materials demonstrate a distinct range of functionalities, which significantly differ from similar materials published in the literature. Importantly, the carbon-silica composites prepared at 800°C exhibited exceptional adsorption capacities for the azo-dye congo red (445 mg g −1 ), due to the graphitic carbon coating and unique functionality including C-O-C within the porous structure. Congo red adsorption capacity of the highly mesoporous graphitic carbon-silica composites significantly exceeds that of commercial activated carbon and silica, these carbon-silica composites therefore represent an effective step towards the development of porous bio-derived adsorbent for remediation of dye wastewaters. Both the porous properties (surface area and pore size distribution) and the functionality of the carbon coating were dependent on the temperature of preparation. The sustainable synthetic methods employed led to a versatile material that inherited the mesoporosity characteristics from the parent silica, demonstrating mesoporous volumes greater than 90% (as calculated from the total pore volume). Adsorption on the 800°C prepared carbon-silica composites demonstrated an excellent fit with the Langmuir isotherm and the pseudo-first-order kinetic model.

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Section: Introductionmentioning

confidence: 99%

Graphitic mesoporous carbon-silica composites from low-value sugarcane by-products for the removal of toxic dyes from wastewaters

et al. 2020

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“…This aldehyde can be easily transformed into furfuryl alcohol (FA), this being a monomer for the synthesis of poly(furfuryl alcohol) (PFA). PFA was found to be a useful polymer for the fabrication of high quality, reproducible, and stable carbon-based, microporous adsorbents by pyrolysis and optionally subsequent modification. − Polyacrylonitrile (PAN), a high-melting and spinnable duroplast, is another extensively studied raw material for the production of carbon fibers, filaments, and films. ,,− …”

Section: Introductionmentioning

confidence: 99%

Investigation on the Low-Temperature Transformations of Poly(furfuryl alcohol) Deposited on MCM-41

et al. 2013

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MCM-41-type mesoporous silica was used as a support for poly(furfuryl alcohol) deposition. This material was produced by precipitation-polycondensation of furfuryl alcohol (FA) in aqueous slurry of the SiO 2 support followed by controlled partial carbonization. By tuning the FA/MCM-41 mass ratio in the reaction mixture, various amounts of polymer particles were introduced on the inner and outer surface of the MCM support. The thermal decomposition of the PFA/MCM-41 composites was studied by thermogravimetry (TG) and spectroscopic techniques (DRIFT, XPS), whereas the evolution of textural parameters with increasing polymer content was investigated using low-temperature adsorption of nitrogen. The mechanism of thermal transformations of PFA deposited on the MCM-41 surface was discussed in detail. It was found that heating at a temperature of about 523 K resulted in opening of the furan rings and the formation of γ-diketone moieties, which were found to be * Corresponding author. Tel. +48-12-6632006; fax +48-12-6340515. E-mail address: kustrows@chemia.uj.edu.pl 2 the highest effective surface species for the adsorption of polar volatile organic compounds. A further increase in calcination temperature caused a drop in the amounts of surface carbonyls and the appearance of condensed aromatic domains.

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“…The resins produced by condensation of FA have found a number of applications, including metal casting cores, corrosion-resistant coatings, polymer concretes, wood adhesives, low flammability materials, and porous carbon [67,[76][77][78][79][80]. They are also used in hybrid materials such as carbon-silica, nanocomposite carbons, PFA-silica, Nafion-PFA, and sol-gel-based nanocomposites [67,[80][81][82][83][84][85][86][87].…”

Section: Furfuryl Alcoholmentioning

confidence: 99%

Monomers and Resulting Polymers from Biomass

Bergman

Kessler

2014

Introduction to Chemicals From Biomass

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Composites prepared from silica gel and furfuryl alcohol with p-toluenesulfphonic acid as the catalyst

Cited by 8 publications

References 7 publications

Graphitic mesoporous carbon-silica composites from low-value sugarcane by-products for the removal of toxic dyes from wastewaters

Graphitic mesoporous carbon-silica composites from low-value sugarcane by-products for the removal of toxic dyes from wastewaters

Investigation on the Low-Temperature Transformations of Poly(furfuryl alcohol) Deposited on MCM-41

Monomers and Resulting Polymers from Biomass

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