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A series of phosphorus (P) modified graphitic carbon nitride (P–C3N4) were facilely prepared by direct thermolysis of melamine and hexachlorotriphosphazene. Based on the results of XPS and 31P NMR analyses, it is deduced that there is replacement of C atoms located at the bay and edge terminal positions by P atoms. The P–C3N4 materials are easy-to-handle, stable, and metal-free. They function well...
A series of functional graphene oxide (F-GO) materials were prepared by silylanization of graphene oxide (GO) with chlorine-terminal silanes and subsequent nucleophilic substitution reaction with tertiary amine in a one-pot approach. The quaternary ammonium salt was generated and immobilized simultaneously in situ, and the primary amine is beneficial to improve the number of surface functionalities...
g-C3N4/β-Bi2O3 composites with high visible-light-driven photocatalytic activity were prepared through calcination of g-C3N4/Bi2O2CO3 of different proportions. They were characterized by powder X-ray diffraction (XRD), Fourier Translation infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FESEM), transmission electron microscopy TEM (high resolution transmission electron microscopy...
The carbon materials carbon nanotubes (CNTs), graphite, and activated carbon were tested as metal-free catalysts. They showed excellent activity and selectivity in the Baeyer–Villiger (B–V) oxidation of cyclohexanone at room temperature using dioxygen (O 2 ) as oxidant and benzaldehyde as sacrificial agent. Among them graphite was found to be the most suitable for the formation of lactones...
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