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Adsorption of sulfonamides to demineralized pine wood biochars prepared under different thermochemical conditions
Abstract
The main objective of this study was to understand the key factors and mechanisms controlling adsorption of sulfonamides to biochars. Batch adsorption experiments were performed for sulfamethoxazole and sulfapyridine to three pine-wood biochars prepared under different thermochemical conditions: pyrolysis at 400 °C (C400) and 500 °C (C500), and pyrolysis at 500 °C followed with hydrogenation (C500-H). For both sulfonamides, the adsorbent surface area-normalized adsorption was stronger to C500 than to C400. This is attributable to the enhanced π-π electron-donor-acceptor interaction with the carbon surface of C500 due to the higher degree of graphitization. Despite the relatively large difference in surface O-functionality content between C500 (12.2%) and C500-H (6.6%), the two biochars exhibited nearly identical adsorbent surface area-normalized adsorption, indicating negligible role of surface O-functionalities in the adsorption to these adsorbents. Effects of solution chemistry conditions (pH, Cu(2+), and dissolved soil humic acid) on adsorption were examined.
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Zhu, D., & Pignatello, J. J. (2005) · Environmental Science & Technology · doi:10.1021/es0491376 · Cited by 425
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Metadata
- Authors
- Xie, M., Chen, W., Xu, Z., Zheng, S., & Zhu, D.
- Venue
- Environmental Pollution
- Publisher
- Elsevier BV
- Published
- 2014-03
- Volume
- 186
- Pages
- 187-194
- ISSN
- 0269-7491 (ISSN-L)
- OpenAlex
- W1978025188
- Cited by
- 298
- References
- 2
- FWCI
- 13.13
- Type
- journal article
- Language
- en
- Open access
- closed
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- Xie, M., Chen, W., Xu, Z., Zheng, S., & Zhu, D. (2014). Adsorption of sulfonamides to demineralized pine wood biochars prepared under different thermochemical conditions. Environmental Pollution. https://doi.org/10.1016/j.envpol.2013.11.022
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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