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NiFe2O4-based magnetic covalent organic framework nanocomposites for the efficient adsorption of brominated flame retardants from water
A new kind of NiFe 2 O 4 -based magnetic covalent organic framework nanocomposites (NiFe 2 O 4 @COFs) was fabricated through facile synthesis approach under room temperature. The NiFe 2 O 4 @COFs exhibited higher adsorption capacity for brominated flame retardants than carbon nanotube material based...
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Published in: | Mikrochimica acta (1966) 2021-05, Vol.188 (5), p.161-161, Article 161 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | A new kind of NiFe
2
O
4
-based magnetic covalent organic framework nanocomposites (NiFe
2
O
4
@COFs) was fabricated through facile synthesis approach under room temperature. The NiFe
2
O
4
@COFs exhibited higher adsorption capacity for brominated flame retardants than carbon nanotube material based on hydrophobic interactions, π-π stacking interaction, and van der Waals forces. In addition, the adsorption isotherm and the kinetic model were more suitable for Langmuir and pseudo-second-order model, respectively. NiFe
2
O
4
-based magnetic covalent organic framework nanocomposites combined with HPLC-UV (absorption wavelength: 214 nm) technology has excellent adsorption performance, which exhibited low detection limits (0.03–1.9 μg L
−1
), wide linear range (0.11–1000 μg L
−1
), good recoveries (91.5–102%) with a relative standard deviation of less than 2.9%. Finally, the prepared magnetic material was successfully used asadsorbents of magnetic solid-phase extraction and applied to the determination of five BFRs from the real water samples.
Graphical abstract
The adsorption and removal of BFRs by NiFe
2
O
4
@COFs from water samples. |
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ISSN: | 0026-3672 1436-5073 |
DOI: | 10.1007/s00604-021-04809-x |