Cost-efficient magnetic nanoporous carbon derived from citrus peel for the selective adsorption of seven insecticides

Journal of Separation Science
Yuantao ZhouZhiqiong Chen

Abstract

A magnetic solid-phase extraction adsorbent that consisted of citrus peel-derived nanoporous carbon and silica-coated Fe3 O4 microspheres (C/SiO2 @Fe3 O4 ) was successfully fabricated by co-precipitation. As a modifier for magnetic microspheres, citrus peel-derived nanoporous carbon was not only economical and renewable for its raw material, but exerted enormous nanosized pore structure, which could directly influence the type of adsorbed analytes. The C/SiO2 @Fe3 O4 also possessed the advantages of Fe3 O4 microspheres like superparamagnetism, which could be easily separated magnetically after adsorption. Integrating the superior of biomass-derived nanoporous carbon and Fe3 O4 microspheres, the as-prepared C/SiO2 @Fe3 O4 showed high extraction efficiency for target analytes. The obtained material was characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and the Brunauer-Emmett-Teller method, which demonstrated that C/SiO2 @Fe3 O4 was successfully synthesized. Under the optimal conditions, the adsorbent was selected for the selective adsorption of seven insecticides before gas chromatography with mass spectrometry detection, and good linearity was obtained in th...Continue Reading

References

Dec 24, 2003·Journal of Agricultural and Food Chemistry·Cristina BlascoYolanda Picó
Sep 23, 2014·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Jieping Chen, Xiashi Zhu
Jan 13, 2016·ACS Applied Materials & Interfaces·Na Rae KimHyoung-Joon Jin
Mar 21, 2018·The Science of the Total Environment·Aliya R SatayevaSergey V Mikhalovsky

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