Cited by 91Thermochemical Biomass Conversion ProcessesAdsorption and biosorption for pollutant removalMesoporous Materials and Catalysis

A Green Route to High-Surface Area Carbons by Chemical Activation of Biomass-Based Products with Sodium Thiosulfate

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Fuertes, Antonio B., Ferrero, Guillermo A., Diez, Noel, Sevilla, Marta·2018·ACS Sustainable Chemistry & Engineering

Abstract

A simple, sustainable, and affordable approach for the synthesis of highly porous carbons is presented. The procedure is based on the use of sodium thiosulfate as an activating agent and a variety of biomass-based products (glucose, sucrose, and gelatine) as carbon precursors. The synthesis scheme involves three steps: (a) mixing the reactants by grinding, (b) heat treatment at temperatures in the 800–900 °C range, and (c) extracting the carbon material from the carbonized solid by simple washing with water. The generation of the pore structure is based on the redox reaction between the carbonaceous matter and sodium thiosulfate acting as an oxidant. In this way, porous carbons with high BET surface areas in the ∼2000–2700 m 2 g –1 range and large pore volumes of up to 2.4 cm 3 g –1 are obtained. The porosity of these carbons consists of two pore systems made up of narrow micropores of 0.8 nm and larger pores of up to 5 nm. These porous carbons have a certain amount of sulfur (∼2–3%) that is incorporated into the carbon framework as thiophene-like and oxidized sulfur groups. Additionally, in the case of gelatine, N content up to 2–3% is preserved.

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Crossref · 10.1021/acssuschemeng.8b03264

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Authors
Fuertes, A. B., Ferrero, G. A., Diez, N., & Sevilla, M.
Affiliations
  • Instituto Nacional del Carbón (ES)
  • Instituto Nacional del Carbón (CSIC), Fco. Pintado Fe 26, Oviedo 33011, Spain
Corresponding author
Fuertes, Antonio B.
Venue
ACS Sustainable Chemistry & Engineering
Published
2018-11-13
Volume
6
Issue
12
Pages
16323-16331
ISSN
2168-0485 (ISSN-L)
OpenAlex
W2901809251
Cited by
91
References
41
Citations by year
2026: 8 · 2025: 11 · 2024: 16 · 2023: 6 · 2022: 13 · 2021: 13 · 2020: 17 · 2019: 7
FWCI
3.70
Type
journal article
Language
en
Open access
Licence
cc-by-nc-nd
Locations
  • ACS Sustainable Chemistry & Engineering (publishedVersion)
  • Consultation of the Doctoral Thesis Database (TESEO) (Ministerio de Educación, Cultura y Deporte) (submittedVersion, cc-by-nc-nd)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion, cc-by-nc-nd)
Funders
  • European Regional Development Fund (CTQ2015-63552-R)
  • Ministerio de Econom?a y Competitividad (CTQ2015-63552-R)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Materials Science › Materials Chemistry › Mesoporous Materials and Catalysis
Keywords
porous carbon, chemical activation, sodium thiosulfate, glucose, sucrose, gelatin, high surface area carbon, sulfur incorporation, nitrogen retention, micropores, pore structure

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