Cited by 99Adsorption and biosorption for pollutant removalThermochemical Biomass Conversion ProcessesCarbon Dioxide Capture Technologies

Effects of biomass type, carbonization process, and activation method on the properties of bio-based activated carbons

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Siipola, Virpi, Tamminen, Tarja, Källi, Anssi, Lahti, Riikka, Romar, Henrik, Rasa, Kimmo, Keskinen, Riikka, Hyväluoma, Jari +2 more·2018·BioResources

Abstract

Activated carbons (AC) serve as adsorbents in various applications requiring specific functionalities. In this study, the effects of biomass type, pre-carbonization process, and activation method on the properties of ACs were investigated. Chemical (KOH and H3PO4) and physical (CO2) activations were performed on slow pyrolyzed and hydrothermally carbonized (HTC) biochars produced from two feedstocks, willow and Scots pine bark (SPB). In addition, the adsorption capacities of the ACs were tested with two dyes and zinc metal. Distinct differences were found between the biochars and ACs regarding pore size distributions, surface area (238 – 3505 m2 g-1), and surface chemistry. KOH activation produced highly microporous ACs from all biochars, whereas with H3PO4 and CO2 there was also increase in the meso- and macroporosity with the HTC biochars. Adsorption capacity for dyes was dependent on the surface area, while for zinc it depended on AC’s pH. The results provide interesting insights into tailoring ACs for specific applications.

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Crossref · 10.15376/biores.13.3.5976-6002

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Authors
Siipola, V., Tamminen, T., Källi, A., Lahti, R., Romar, H., Rasa, K., Keskinen, R., Hyväluoma, J., Hannula, M., & Wikberg, H.
Affiliations
  • VTT Technical Research Centre of Finland (FI)
  • University of Oulu (FI)
  • Natural Resources Institute Finland (FI)
  • Tampere University of Technology (FI)
Corresponding author
Siipola, Virpi
Venue
BioResources
Publisher
BioResources
Published
2018-06-15
Volume
13
Issue
3
Pages
5976-6002
ISSN
1930-2126 (ISSN-L)
OpenAlex
W2810861455
Cited by
98
References
54
Citations by year
2026: 21 · 2025: 28 · 2024: 18 · 2023: 12 · 2022: 5 · 2021: 4 · 2020: 6 · 2019: 4
FWCI
1.53
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • BioResources (publishedVersion, cc-by)
  • Jukuri (Natural Resources Institute Finland (Luke)) (submittedVersion)
Funders
  • European Commission (HORIZON2020, 637020)
  • Sveriges Lantbruksuniversitet
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
  • Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
Keywords
activated carbon, biochar, hydrothermal carbonization, pyrolysis, KOH activation, phosphoric acid activation, CO2 activation, willow, dye adsorption, zinc adsorption, pore size distribution, surface area, surface chemistry, biomass feedstock

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