Graphite-like carbon nitride and functionalized layered double hydroxide filled polypropylene-grafted maleic anhydride nanocomposites: Comparison in flame retardancy, and thermal, mechanical and UV-shielding properties

Synergistic effect of graphitic carbon nitride and ammonium polyphosphate for enhanced thermal and flame retardant properties of polystyrene

“…The T 10 , T 50 and T max are dramatically increased by 32.9, 46.3 and 40.3 C, respectively for PS/CNAPP composites. However, the residues are decreased gradually upon the addition of CNAPP, which can be ascribed to the thermaloxidation degradation of the skeleton of g-C 3 N 4 [41]. These results indicate that the combination of APP and g-C 3 N 4 serves to prevent or slow depolymerization.…”

Characterization of urea derived polymeric carbon nitride and resultant thermally vacuum deposited amorphous thin films: Structural, chemical and photophysical properties

“…S2. Two pronounced peaks were observed at 27.47 and 13.13° in p-CN diffraction pattern corresponding to the interlayer stacking peak of aromatic systems and the in-plane structural packing motif of tri-s-triazine units [36], respectively, which is in consistence with the reported p-CN derived from thermal decomposition of urea [8,33,34]. It is important to note that very similar diffraction patterns with practically identical peak positions were obtained via thermal treatment (temperature range of 520-550 ºC) of melamine [23,25,26,56] and dicyandiamide [11,13,16,18] as source materials.…”

“…The absorption bands in the region of 1200-1800 cm -1 originate from typical skeletal stretching vibrations of n(C-N) heterocycles (stretching vibrations of triazine ring system)[38,67]. The broad band at 3299 cm -1 was attributed to stretching vibration mode of -NH of hydrogen bonding interaction in partly coordinated groups[36,67]. The band at 2179 cm -1 could be assigned to the stretching vibration of cyano group[29].…”

“…The p-CN only consists of abundant elements in a tri-s-triazine ring structure as elementary building block. It can be synthesized via a straightforward and scalable process from relatively cheap source materials such as dicyandiamide [10][11][12][13][14][15][16][17][18], cyanamide [19], ammonium thiocyanate [20], melamine [21][22][23][24][25][26][27][28][29][30], urea [8,9,[31][32][33][34][35][36], thiourea [28], guanidine carbonate [37] and thiosemicarbazide [38]. Generally, synthesis methods of p-CN involve thermal treatment of precursor material in the temperature range of 450-650 °C.…”

Photocatalysts with adsorption property for dye-contaminated water purification

“…201 However, there is limited research on the composition between LDH and g-C3N4. 166,[201][202][203][204] There is even fewer research on the composition between LDH and g-C3N4 which is used in water purification.…”