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Effects of modification and magnetization of rice straw derived biochar on adsorption of tetracycline from water

Dai, Jiawei, Meng, Xiangfu, Zhang, Yuhu, Huang, Yunjie·2020·Bioresource Technology

Abstract

Rice straw derived biochar shows low-cost superiority as a potential adsorbent in tetracycline (TC) removal, but limited by its poor adsorption capacity and N, P leaking risk. Herein, an alkali-acid combined and magnetization method was proposed for its modification. The sorption kinetic and isotherm data showed modification enhanced the performance for tetracycline removal with adsorption capacity up to 98.33 mg·g-1. The strong adsorption mechanisms were dominated by hydrogen bonding and pore-filling effect due to the increase of specific surface area and pore volume. Furthermore, the effect of pH was insignificant over a pH range from 3 to 10. The strong competition between ionic and TC was identified, where Ca2+ and PO43- markedly inhibited the sorption. The enhanced TC adsorption, strong N and P removal, easy magnetic recovery, and good reusability in water samples entrusted it with good potential for wastewater treatment and rice straw resource disposal.

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Metadata

Authors
Dai, J., Meng, X., Zhang, Y., & Huang, Y.
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2020-09
Volume
311
Pages
123455
ISSN
0960-8524 (ISSN-L)
OpenAlex
W3023301332
Cited by
390
References
2
FWCI
16.70
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Effects of modification and magnetization of rice straw derived biochar on adsorption of tetracycline from water. https://app.cochat.ai/papers/10.1016/j.biortech.2020.123455
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Dai, J., Meng, X., Zhang, Y., & Huang, Y. (2020). Effects of modification and magnetization of rice straw derived biochar on adsorption of tetracycline from water. Bioresource Technology. https://doi.org/10.1016/j.biortech.2020.123455

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