Journal
JOURNAL OF SEPARATION SCIENCE
Volume 41, Issue 8, Pages 1847-1855Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.201700888
Keywords
environmental samples; magnetic graphene/carbon nanotubes/polydopamine nanocomposites; magnetic solid-phase extraction; polycyclic aromatic hydrocarbons
Categories
Funding
- Key Laboratory of Cigarette Smoke, Technology Center of Shanghai Tobacco (Group) Corp.
- Natural Science Foundation of China [41322024]
Ask authors/readers for more resources
A novel adsorbent made of polydopamine-functionalized magnetic graphene and carbon nanotubes hybrid nanocomposite was synthesized and applied to determine 16 priority polycyclic aromatic hydrocarbons by magnetic solid phase extraction in water samples. FTIR spectroscopy, transmission electron microscopy, scanning electron microscopy, and Raman spectroscopy consistently indicate that the synthesized adsorbents are made of core-shell nanoparticles well dispersed on the surface of graphene and carbon nanotubes. The major factors affecting the extraction efficiency, including the pH value of samples, the amount of adsorbent, adsorption time and desorption time, type and volume of desorption solvent, were systematically optimized. Under the optimum extraction conditions, a linear response was obtained for polycyclic aromatic hydrocarbons between concentrations of 10 and 500 ng/L with the correlation coefficients ranging from 0.9958 to 0.9989, and the limits of detection (S/N = 3) were between 0.1 and 3.0 ng/L. Satisfactory results were also obtained when applying these magnetic graphene/carbon nanotubes/polydopamine hybrid nanocomposites to detect polycyclic aromatic hydrocarbons in several environmental aqueous samples.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available