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Lookup NU author(s): Dr Ashleigh Fletcher, Professor Lidija Siller
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
A Scottish wood biochar sample was investigated for water remediation against persistent organic pollutants as a potential renewable material for adsorption processes. Textural characterisation gave a high surface area (588 m2/g) and a mix of microporous and mesoporous nature with an average pore width of 4 nm. Morphological analysis revealed a layered carbon structure and spectroscopic analysis showed the presence of oxygen and nitrogen-based functionalities. The biochar had an average point of zero charge slightly above neutral. 3-4, DCA kinetic rates were rapid (<5 min), restricting kinetic analysis, while a pseudo second order kinetic model was best suited to represent the kinetic data for acetaminophen and carbamazepine, suggesting chemical control. The adsorption equilibria were most appropriately described by the Sips isotherm model, supplementing the chemical control theory for a multilayer system. Maximum adsorption capacity was relatively all three chemicals, and the biochar demonstrated good removal efficiency against all target species, showing potential as an adsorbent.
Author(s): Jamal MU, Fletcher A, Baby A, Maso I, Šiller L
Publication type: Article
Publication status: Published
Journal: Adsorption Science and Technology
Year: 2024
Volume: 42
Pages: 1-25
Online publication date: 29/05/2024
Acceptance date: 30/04/2024
Date deposited: 08/01/2024
ISSN (print): 0263-6174
ISSN (electronic): 2048-4038
Publisher: Sage Publications Ltd.
URL: https://doi.org/10.1177/02636174241256854
DOI: 10.1177/02636174241256854
Data Access Statement: All data generated in this study are included in this article. No AIF-related data were generated in this study.
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