Adsorption Mechanism of Ciprofloxacin from Water by Synthesized Birnessite

Xuebing Xing; Jingwen Feng; Guocheng Lv; Kenan Song; Lefu Mei; Libing Liao; Xiaoyu Wang; Ben Xu

doi:10.1155/2015/148423

Advances in Materials Science and Engineering (Jan 2015)

Adsorption Mechanism of Ciprofloxacin from Water by Synthesized Birnessite

Xuebing Xing,
Jingwen Feng,
Guocheng Lv,
Kenan Song,
Lefu Mei,
Libing Liao,
Xiaoyu Wang,
Ben Xu

Affiliations

Xuebing Xing: Beijing Key Laboratory of Nonmetallic Minerals and Material Utilization of Solid Wastes, School of Material Sciences and Technology, China University of Geosciences, Beijing 100083, China
Jingwen Feng: Beijing Key Laboratory of Nonmetallic Minerals and Material Utilization of Solid Wastes, School of Material Sciences and Technology, China University of Geosciences, Beijing 100083, China
Guocheng Lv: Beijing Key Laboratory of Nonmetallic Minerals and Material Utilization of Solid Wastes, School of Material Sciences and Technology, China University of Geosciences, Beijing 100083, China
Kenan Song: School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
Lefu Mei: Beijing Key Laboratory of Nonmetallic Minerals and Material Utilization of Solid Wastes, School of Material Sciences and Technology, China University of Geosciences, Beijing 100083, China
Libing Liao: Beijing Key Laboratory of Nonmetallic Minerals and Material Utilization of Solid Wastes, School of Material Sciences and Technology, China University of Geosciences, Beijing 100083, China
Xiaoyu Wang: Beijing Key Laboratory of Nonmetallic Minerals and Material Utilization of Solid Wastes, School of Material Sciences and Technology, China University of Geosciences, Beijing 100083, China
Ben Xu: School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

DOI: https://doi.org/10.1155/2015/148423
Journal volume & issue: Vol. 2015

Abstract

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The efficiency of ciprofloxacin (CIP) adsorption on synthesized birnessite was systematically studied under varying physicochemical conditions, such as solution pH, contact time, initial CIP concentration, and different average oxidation states (AOS) of Mn in birnessite. X-ray diffraction (XRD), Fourier transform infrared (FTIR), and molecular simulations were employed to investigate the adsorption mechanism of CIP on birnessite. Experimental results showed that surface adsorption instead of cation exchange was responsible for the uptake of CIP on birnessite. The quantum mechanics simulation showed that the final energy of the interaction between CIP and birnessite was smaller under the condition when the AOS of Mn was lower, in comparison to the case when the AOS of Mn was high. The highest CIP adsorption occurred under a weak alkaline condition.

Published in Advances in Materials Science and Engineering

ISSN: 1687-8434 (Print); 1687-8442 (Online)
Publisher: Hindawi Limited
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://onlinelibrary.wiley.com/journal/5928

About the journal