Zn/Fe LDH as a clay-like adsorbent for the removal of oxytetracycline from water: combining experimental results and molecular simulations to understand the removal mechanism.
Adsorption mechanism
Inorganic nanomaterials
Isotherm
Kinetic
Molecular dynamics
OTC
Journal
Environmental science and pollution research international
ISSN: 1614-7499
Titre abrégé: Environ Sci Pollut Res Int
Pays: Germany
ID NLM: 9441769
Informations de publication
Date de publication:
Apr 2020
Apr 2020
Historique:
received:
02
10
2019
accepted:
14
01
2020
pubmed:
30
1
2020
medline:
11
7
2020
entrez:
30
1
2020
Statut:
ppublish
Résumé
Pharmaceuticals are detected at trace levels in water. Their adverse effects on human health and aquatic ecosystems required novel pharmaceutical remediation methods for treating wastewater effluents. Layer double hydroxide (LDH) is abundantly available by simple preparation methods and with low costs. The extensive use of antibiotics nowadays leads to increasing the appearance of antibiotic resistance between bacteria and decreasing the effectiveness of antibiotics. In this work, the removal of one of these antibiotics named "oxytetracycline hydrochloride (OTC)" by Zn/Fe LDH was investigated. The Zn/Fe LDH before and after adsorption was characterized by X-ray diffraction, FT-IR analysis, zeta potential, particle size, BET surface area, HRTEM, FESEM, and XPS. The effects of different factors on the OTC adsorption performance were investigated. The removal percentage of OTC was 77.23% by Zn/Fe LDH. The isothermal and kinetic study of OTC adsorption was carried out at pH 6 at 25 °C using different models. The adsorption mechanism was investigated by Monte Carlo and molecular dynamic simulations.
Identifiants
pubmed: 31993907
doi: 10.1007/s11356-020-07750-3
pii: 10.1007/s11356-020-07750-3
doi:
Substances chimiques
Hydroxides
0
Water Pollutants, Chemical
0
Water
059QF0KO0R
Zinc
J41CSQ7QDS
Clay
T1FAD4SS2M
Oxytetracycline
X20I9EN955
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
12256-12269Références
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