Large‐Scale Synthesis of Nitrogen‐Rich Carbon Nitride Microfibers by Using Graphitic Carbon Nitride as Precursor

Abstract

One‐dimensional structures of nitrogen‐rich carbon nitride are synthesized via a thermal evaporation process. The CN atomic rings (s‐triazine and/or tri‐s‐triazine) present in the precursor remain stable during the thermal evaporation and vapor transfer. They act as basic building blocks during the microstructure assembly; thus ensuring a high nitrogen content in the final product.

Surface modification of graphene and graphite by nitrogen plasma: Determination of chemical state alterations and assignments by quantitative X-ray photoelectron spectroscopy

“…Recently, graphitic carbon nitride (g-C 3 N 4 ) has been successfully synthesized, and its structure was described as being composed of heptazine (tri-s-triazine) blocks [49][50][51][52]. In accordance with this finding, our interpretation of the high top-surface N-content includes the formation of similar triazine clusters within the graphene plane, in addition to the pyridine, pyrrole, diazine and possible pyridazine rings at the edges of the graphene blocks [6].…”

Template-free synthesis of porous graphitic carbon nitride microspheres for enhanced photocatalytic hydrogen generation with high stability

“…Graphitic carbon nitride (g-C 3 N 4 ) as a metal free polymeric semiconductor has been widely used for photocatalytic H 2 generation because it is non-toxic, low cost, high stability and visible light active [1][2][3][4][5][6][7]. However, the photocatalytic efficiency of H 2 generation from proton reduction over polymeric carbon nitride is usually low due to (1) limited visible-light absorption; (2) low efficiency in electron-hole separation; (3) lack of surface active sites for H 2 evolution [8,9].…”

Polymeres graphitisches Kohlenstoffnitrid als heterogener Organokatalysator: von der Photochemie über die Vielzweckkatalyse hin zur nachhaltigen Chemie

“…Das sogenannte g-C 3 N 4 ist das stabilste Allotrop des Kohlenstoffnitrids und findet weltweit das meiste Interesse. [12,[41][42][43][44][45][46][47] Die jetzt identifizierte Gerüststruktur im g-C 3 N 4 ist mit großer Wahrscheinlichkeit ein defektreiches, N-verbrücktes "Poly(tri-s-triazin)"-Netzwerk. Da der Tri-s-triazinRing (C 6 N 7 ) aromatisch ist, ist zu erwarten, dass ein konjugiertes, zweidimensionales Polymer p-konjugierte planare Schichten wie Graphit bildet.…”