University of Oulu

Tuomikoski, S.; Kupila, R.; Romar, H.; Bergna, D.; Kangas, T.; Runtti, H.; Lassi, U. (2019) Zinc Adsorption by Activated Carbon Prepared from Lignocellulosic Waste Biomass. Appl. Sci, 9 (21), 4583. doi:10.3390/app9214583

Zinc adsorption by activated carbon prepared from lignocellulosic waste biomass

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Author: Tuomikoski, Sari1; Kupila, Riikka2; Romar, Henrik1,2;
Organizations: 1Research Unit of Sustainable Chemistry, University of Oulu, P.O. Box 4300, FI-90014 Oulu, Finland
2Unit of Applied Chemistry, Kokkola University Consortium Chydenius, University of Jyvaskylä, Talonpojankatu 2B, FI-67100 Kokkola, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 0.7 MB)
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Language: English
Published: Multidisciplinary Digital Publishing Institute, 2019
Publish Date: 2019-10-29


Sawdust was used as a precursor for the production of biomass-based activated carbon. Carbonization and activation are single-stage processes, and steam was used as a physical activation agent at 800 °C. The adsorption capacity towards zinc was tested, and the produced activated carbon proved effective and selectively adsorbent. The effects of pH, initial concentration, adsorbent dosage, time, temperature, and regeneration cycles were tested. The adsorption capacity obtained in this study was compared favorably to that of the materials reported in the literature. Several isotherms were applied to describe the experimental results, with the Sips isotherm having the best fit. Kinetic studies showed that the adsorption follows the Elovich kinetic model.

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Series: Applied sciences
ISSN: 2076-3417
ISSN-E: 2076-3417
ISSN-L: 2076-3417
Volume: 9
Issue: 21
Article number: 4583
DOI: 10.3390/app9214583
Type of Publication: A1 Journal article – refereed
Field of Science: 116 Chemical sciences
Funding: This work was done under the auspices of the Waterpro (ERDF project number: A74635, funded by the Central Ostrobothnia Regional Council). The author thanks Maa-ja Vesitekniikan Tuki Ry for the financial support.
Copyright information: © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (