University of Oulu

Dos Reis, G. S., Thivet, J., Laisné, E., Srivastava, V., Grimm, A., Lima, E. C., Bergna, D., Hu, T., Naushad, Mu., & Lassi, U. (2023). Synthesis of novel mesoporous selenium-doped biochar with high-performance sodium diclofenac and reactive orange 16 dye removals. Chemical Engineering Science, 281, 119129.

Synthesis of novel mesoporous selenium-doped biochar with high-performance sodium diclofenac and reactive orange 16 dye removals

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Author: dos Reis, Glaydson S.1; Thivet, Julie1,2; Laisné, Ewen1,3;
Organizations: 1Department of Forest Biomaterials and Technology, Biomass Technology Centre, Swedish University of Agricultural Sciences, Umeå SE-901 83, Sweden
2Ecole Nationale Supérieure de Chimie de Montpellier, Montpellier, France
3IMT Mines Albi-Carmaux, 81000 Albi, France
4Research Unit of Sustainable Chemistry, Faculty of Technology, University of Oulu, FI-90014 Oulu, Finland
5Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
6Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 5.7 MB)
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Language: English
Published: Elsevier, 2023
Publish Date: 2023-08-02


In this study, for the first time, a selenium-doped mesoporous biochar was prepared and efficiently employed for sodium diclofenac and reactive orange 16 dye adsorption. The characterization results indicated that selenium doping had a remarkable impact on Biochar-Se morphological and physicochemical structures. The efficacy of developed biochar samples on reactive orange 16 (RO-16) and diclofenac (DCF) removals was fully investigated. For both molecules (DCF and RO-16), Liu’s equilibrium model offered the best fitness with maximum adsorption capacity values of 355 mg g−1 for DCF and 538 mg g−1 for RO-16 for Biochar-Se. Multiple mechanisms including pore filling, π-π interaction, and hydrogen bonding between the Biochar-Se and DCF/RO-16 molecules were involved in the adsorption process. Se-nanoparticles formed metal–oxygen bonds, which boosted the adsorption of DCF and RO-16 molecules. The current work offered a feasible approach for the development of Se-doped biochar adsorbent that is incredibly effective in treating wastewater.

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Series: Chemical engineering science
ISSN: 0009-2509
ISSN-E: 1873-4405
ISSN-L: 0009-2509
Volume: 281
Article number: 119129
DOI: 10.1016/j.ces.2023.119129
Type of Publication: A1 Journal article – refereed
Field of Science: 116 Chemical sciences
Funding: Dr. dos Reis thanks Bio4Energy - a Strategic Research Environment appointed by the Swedish government and the Swedish University of Agricultural Sciences, for the funding support. Dr. Alejandro Grimm acknowledges financial support from the Swedish Research Council FORMAS (2021-00877). The authors are grateful to the Distinguished Scientist Fellowship Program (DSFP) from King Saud University, Riyadh, Saudi Arabia, for the financial support. E.C. Lima thanks to CNPq and FINEP for financial support.
Copyright information: © 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (