Abstract
The highly ordered mesoporous carbon (OMC) was used for the immobilization of hemin, and the electrochemical and electrocatalytic properties of the hemin–OMC nanocomposites modified electrode were studied. The interaction between hemin and OMC was investigated by using UV-vis spectroscopy, nitrogen adsorption isotherm, and cyclic voltammetry. UV-vis absorption spectra display that hemin keeps almost natural structure in the OMC matrix. The CV results of hemin–OMC modified electrode showed a pair of well-defined and quasi-reversible redox peaks centered at approximate −0.345 V (vs. SCE) in pH 7.0 phosphate buffer solution. Furthermore, the hemin–OMC modified electrode displayed good electrocatalytic responses to the reduction of hydrogen peroxide (H2O2), which had a linear range from 2.0 × 10−6 to 2.5 × 10−4 M (R = 0.9992, n = 12) with the detection limit of 0.3 μM (S/N = 3).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
