Adsorptive Removal of Ciprofloxacin by Ferric Chloride Modified Biochar

Huaxuan Zhao, Zhengmei Cao, Jin Li, Yinhai Lang

2018

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.

Paper Citation

in Harvard Style

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 - Volume 1: IWEG, ISBN 978-989-758-342-1, pages 56-61. DOI: 10.5220/0007425700560061

in Bibtex Style

@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 - Volume 1: IWEG,},
year={2018},
pages={56-61},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007425700560061},
isbn={978-989-758-342-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of the International Workshop on Environment and Geoscience - Volume 1: 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