MORFOLOGICAL AND ELECTROCHEMICAL CHARACTERIZATION OF CARBON NITRIDE /HIGHLY ORIENTED PYROLYTIC GRAPHITE SENSOR

GOMEZ, CESAR G.; ROJAS, MARIANA I.; LINAREZ PÉREZ, OMAR E.; AVALLE, LUCÍA B.

Congreso; II Brazil?Argentine Microfluidics Congress / V Congreso Argentino de Microfluídica; 2019

Recently a new sensor was developed consisting of a Highly Oriented Pyrolytic Graphite (HOPG) modified by deposition of graphite carbon nitride (g-C3N4). The sensor has an excellent analytical response [1], allowing quantifying hydrogen peroxide in a sensitive and reliable way, up to a detection limit of 0.12 mM [2].In this work, the morphological characterization of g-C3N4 film deposited on HOPG surface is presented. The exfoliated g-C3N4 particles were suspended in ethanol and deposited drop wise on surface. Electron Transmission Microscopy (TEM), Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) techniques were used.