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HERO ID
6943230
Reference Type
Journal Article
Title
Removal of Tetracycline in Sewage and Dairy Products with High-Stable MOF
Author(s)
Li, K; Li, JJ; Zhao, N; Ma, Y; Di, B; ,
Year
2020
Is Peer Reviewed?
1
Journal
Molecules
ISSN:
1420-3049
Publisher
MDPI
Location
BASEL
Volume
25
Issue
6
Language
English
PMID
32183050
DOI
10.3390/molecules25061312
Web of Science Id
WOS:000530248700055
URL
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85081671144&doi=10.3390%2fmolecules25061312&partnerID=40&md5=f8abc93180cc2b2965d40ed2df527d85
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Abstract
Serious environmental and human health problems caused by the abuse of antibiotics have attracted worldwide concern. Recently, metal-organic frameworks (MOFs) with high porosity have drawn wide attention for their effects in the adsorption and removal of pollutants from complex matrices. Herein, a high-stable metal organic framework (MOF), i.e., ((ZnCl2)3(L)2·DMF)n, where L=1,3,5-tris((pyridin-4-ylthio)methyl)benzene), MOF 1, was applied to adsorb and remove tetracycline from sewage and dairy products. The results showed that MOF 1 exhibited a strong performance in the adsorption of tetracycline. The effects of initial pH values, adsorbent dose, contact time and ionic strength of the adsorption performance of MOF 1 were investigated. The adsorption kinetics best fit the pseudo-second order model, and the adsorption isotherms matched the Langmuir adsorption model well. It was indicated that both chemical adsorption and physical adsorption play an important role in the adsorption process, and the adsorption of tetracycline was homogeneous and occurred on a monolayer on the surface of MOF 1. Additionally, the stability of MOF 1 and the details of the adsorption mechanism were also investigated. Thus, this study provides a new candidate for the application of MOFs-based adsorbents in the removal of antibiotics from sewage and dairy products.
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