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Authors: Huaxuan Zhao 1 ; Zhengmei Cao 2 ; Jin Li 1 and Yinhai Lang 1

Affiliations: 1 College of Environmental Science and Engineering, Ocean University of China, Qingdao, Key Laboratory of Marine Environmental Science and Ecology, Ministry of Education and Ocean University of China, China ; 2 Qingdao Environmental Monitoring Central Station and Qingdao, China

Keyword(s): Ciprofloxacin, magnetic biochar, adsorption, mechanism

Abstract: A magnetic biochar (MBC) was fabricated through pyrolysis of FeCl3 impregnated reed stalk powder, and used for ciprofloxacin (CIP) adsorption from aqueous solution. The structure and properties of the MBC were characterized by elemental analyzer, BET, SEM and FTIR. Results showed that the prepared MBC had a large specific surface area and pore volume, which was conducive to the CIP adsorption. Adsorption of CIP on MBC was of strong pH dependence and demonstrated a bimodal curve. Ionic strength increasing was advantageous to the CIP adsorption. The Langmuir model and the pseudo second-order model presented better fittings for the adsorption equilibrium and kinetic data. Adsorption thermodynamic parameters manifested that the adsorption behavior was a spontaneous, endothermic and entropy-increasing process. Pore-filling effect, π-π EDA interaction, electrostatic interaction, hydrogen bonding formation and hydrophobic interaction were important mechanisms for CIP adsorption on the MBC.

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Paper citation in several formats:
Zhao, H.; Cao, Z.; Li, J. and Lang, Y. (2018). Adsorptive Removal of Ciprofloxacin by Ferric Chloride Modified Biochar. In Proceedings of the International Workshop on Environment and Geoscience - IWEG; ISBN 978-989-758-342-1, SciTePress, pages 56-61. DOI: 10.5220/0007425700560061

@conference{iweg18,
author={Huaxuan Zhao. and Zhengmei Cao. and Jin Li. and Yinhai Lang.},
title={Adsorptive Removal of Ciprofloxacin by Ferric Chloride Modified Biochar},
booktitle={Proceedings of the International Workshop on Environment and Geoscience - IWEG},
year={2018},
pages={56-61},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007425700560061},
isbn={978-989-758-342-1},
}

TY - CONF

JO - Proceedings of the International Workshop on Environment and Geoscience - IWEG
TI - Adsorptive Removal of Ciprofloxacin by Ferric Chloride Modified Biochar
SN - 978-989-758-342-1
AU - Zhao, H.
AU - Cao, Z.
AU - Li, J.
AU - Lang, Y.
PY - 2018
SP - 56
EP - 61
DO - 10.5220/0007425700560061
PB - SciTePress