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NiFe2O4-based magnetic covalent organic framework nanocomposites for the efficient adsorption of brominated flame retardants from water.
- Source :
- Microchimica Acta; May2021, Vol. 188 Issue 5, p1-10, 10p
- Publication Year :
- 2021
-
Abstract
- A new kind of NiFe<subscript>2</subscript>O<subscript>4</subscript>-based magnetic covalent organic framework nanocomposites (NiFe<subscript>2</subscript>O<subscript>4</subscript>@COFs) was fabricated through facile synthesis approach under room temperature. The NiFe<subscript>2</subscript>O<subscript>4</subscript>@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<subscript>2</subscript>O<subscript>4</subscript>-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<superscript>−1</superscript>), wide linear range (0.11–1000 μg L<superscript>−1</superscript>), 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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00263672
- Volume :
- 188
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Microchimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 150363378
- Full Text :
- https://doi.org/10.1007/s00604-021-04809-x