Sun, Yuqing, Zhang, Qiaozhi, Clark, James Hanley orcid.org/0000-0002-5860-2480 et al. (4 more authors) (2022) Tailoring wood waste biochar as a reusable microwave absorbent for pollutant removal:Structure-property-performance relationship and iron-carbon interaction. BIORESOURCE TECHNOLOGY. 127838. ISSN 0960-8524
Abstract
This study innovated the concept in designing an efficient and reusable microwave (MW) absorbent through concurrent exploitation of carbon graphitization, oxygen functionalization, and carbothermal iron reduction underpinned by an endothermic co-pyrolysis of wood waste and low-dosage iron. A powerful MW assimilation was accomplished from nanoscale amorphous magnetic particles as well as graphitized microporous carbon-iron skeleton in the biochar composites. Relative to a weak magnetic loss derived from the iron phase, the graphitic carbon architecture with abundant surface functionalities (i.e., Csingle bondO and Cdouble bondO) exhibited a strong dielectric loss, which was thus prioritized as major active sites during MW reuse. The MW-absorbing biochar demonstrated a fast, robust, and durable removal of a refractory herbicide (2,4-dichlorophenoxy acetic acid) under mild MW irradiation with zero chemical input, low electricity consumption, and negligible Fe dissolution. Overall, this study will foster carbon–neutral industrial wastewater treatment and wood waste valorization.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 Elsevier Ltd. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Chemistry (York) |
Depositing User: | Pure (York) |
Date Deposited: | 13 Oct 2022 10:10 |
Last Modified: | 14 Mar 2025 00:10 |
Published Version: | https://doi.org/10.1016/j.biortech.2022.127838 |
Status: | Published online |
Refereed: | Yes |
Identification Number: | 10.1016/j.biortech.2022.127838 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:192043 |
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