Abstract
As a new type of carbon nanomaterial, graphdiyne (GDY) has unique sp hybridized carbon atom, which makes it possible to develop new nitrogen-doped configurations. In this paper, sp-hybridized nitrogen atom doped ultrathin graphdiyne (NUGDY) was prepared based on graphdiyne oxide and melamine by carbonization at high temperature. NUGDY not only preserves the typical folded and wrinkled two-dimensional morphology of GDY, but also presents a three-dimensional porous network structure, which provides sufficient interface and capacity for the loading of target analyte. Meanwhile, N doping increases the GDY defects with more active sites and higher conductivity. Then, NUGDY was modified on the surface of carbon ionic liquid electrode and the modified electrode was applied to 6,7-dihydroxycoumarin (6,7-DHC) analysis. Cyclic voltammetry, electrochemical impedance spectroscopy and chronocoulometry results show that NUGDY has good promotive effect to the electrode performances. Differential pulse voltammetric experiments show that this electrochemical sensor has a low detection limit as 2.3nM (3S0/S) for 6,7-DHC with high sensitivity. In addition, the modified electrode has the characteristics of excellent anti-interference ability and stability, and been successfully used in the real samples determination, which provides a promising method for the sensitive detection of drug molecules.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.