Nickel Oxide and Nickel Co‐doped Graphitic Carbon Nitride Nanocomposites and its Octylphenol Sensing Application

Abstract

Nickel oxide and nickel co‐doped graphitic carbon nitride (NiONiGCN) nanocomposites were successfully prepared by thermal treatment of melamine and NiCl2 ⋅ 6H2O. NiONiGCN nanocomposites showed superior electrochemical catalytic activity for the oxidation of octylphenol to pure GCN. A detection method of octylphenol in environmental water samples was developed based at NiONiGCN nanocomposites modified electrode under infrared light irradiation. Differential pulse voltammetry was used as the analytic technique of octylphenol, exhibiting stable and specific concentration‐dependent oxidation signal in the presence of octylphenol in the range of 10 nM to 1 µM and 1 µM to 50 µM, with a detection limit of 3.3 nM (3S/N).

Ultrathin Sulfur-Doped Graphitic Carbon Nitride Nanosheets As Metal-Free Catalyst for Electrochemical Sensing and Catalytic Removal of 4-Nitrophenol

“…Recently, graphitic carbon nitride (GCN) has attracted widespread attention due to its outstanding and unique chemical, electronic, and ionic conductivity, photosensitivity, electrocatalytic properties, and increased applications. − Due to its low cost, lightweight, easy availability, and remarkably high stability, it has been applied in water splitting, photocatalysis, sensing, , bioimaging, etc. The polymeric nature of GCN is suitable for electrocatalytic materials, which have been used in a wide range of electrochemical sensing of biomolecules, − phenolic compounds, and toxic metal ions .…”

Improving the surface-enhanced Raman scattering activity of carbon nitride by two-step calcining

“…Graphitic carbon nitride (g-C 3 N 4 ) has attracted widespread attention due to its outstanding and unique chemical, catalytic and optical properties. Along with its low cost, easy availability, and remarkably high stability to oxidation, g-C 3 N 4 is a very attractive material for water splitting, 1,2 photocatalytic, 3,4 organic catalytic [5][6][7] and electrocatalytic 8,9 applications. Commonly for inorganic nanocatalysts, the size and crystal facets could signicantly affect their catalytic performance.…”

Oxidative Desulfurization of Benzothiophene by Persulfate and Cu-Loaded g-C3 N4 via the Polymerization Pathway

“…The band at 778 cm –1 is assigned to the out-of-plane bending mode of the graphitic domains (Figure a) . The bands at 1172 and 1227 cm –1 represent the atomic C–N and aromatic C–N bonds, respectively, and the 984 cm –1 band is N–C–N (Figure a) . The 1414 and 1598 cm –1 correspond to the characteristic D and G bands (Figure a), where D and G represent the disordered points or domains in sp 2 -hybridized carbon materials and the C–C tangential stretching mode of intact graphitic sp 2 carbons, respectively .…”