Kinetics and isotherms of oxytetracycline adsorption on β-cyclodextrin/carboxymethylcellulose hydrogel films

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Author list: Juengchareonpoon K., Boonamnuayvitaya V., Wanichpongpan P.

Publisher: Blackwell Publishing Ltd

Publication year: 2019

Volume number: 50

Issue number: 11

Start page: 3412

End page: 3419

Number of pages: 8

ISSN: 1355-557X

eISSN: 1355-557X

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85070710563&doi=10.1111%2fare.14299&partnerID=40&md5=3c45b800497362b5d143e3138bdc17bd

Languages: English-Great Britain (EN-GB)

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Abstract

Oxytetracycline (OTC), widely used as an antibiotic substance in aquaculture, has an adverse effect on environmental and public health. The aim of this paper was to demonstrate that OTC can be removed by hydrogel films composed of β-cyclodextrin/carboxymethylcellulose (β-CD/CMC) with esterification-crosslink method. Oxytetracycline adsorption experiments were performed with an initial pH of 1–12 and an initial concentration of 10–500 mg/L. The experimental data were fitted with Langmuir and Freundlich isotherms and compared using linear and nonlinear models. The experimental results indicate that OTC's adsorption capacity depends on the active β-cyclodextrin content. The optimal pH was around 8. © 2019 John Wiley & Sons Ltd

Keywords

β-cyclodextrin