Ultraviolet and near-infrared Raman spectroscopy of graphitic C3N4 phase

Effect of processing temperature on structure and photocatalytic properties of g-C3N4

“…The other strong peak at 980 cm -1 represents the breathing 1 mode of the triazine ring [41,42]. The second ring-valence vibration of species E' is observed near 1557 cm -1 , while in the lowfrequency region, the peak at 584 cm -1 also belongs to species E' [43].…”

“…The most intense peak in the melamine Raman spectrum appears at 675 cm -1 and is assigned to the breathing 2 mode of the triazine ring [41,42]. The other strong peak at 980 cm -1 represents the breathing 1 mode of the triazine ring [41,42].…”

“…More specifically, the intense peaks at 544, 751 and 1152 cm -1 are assigned to the A 1 ′ vibrations of the tri-s-triazine ring. On the other hand, the intensity of the peak at 980 cm -1 decreases as more triazine rings combine to form the tri-s-triazine units of melem [27,42]. As the process temperature increases, the samples completely The C1s spectra, shown in Figure 9(b), can be deconvoluted into two peaks.…”

Photocatalytic decomposition of N2O over TiO2/g-C3N4 photocatalysts heterojunction

“…The precise assignment of Raman spectral band of graphitic carbon nitride has not been published yet. Some fragments of assignment can be found in Zinin et al [40] or Papailias et al [39].…”

Switching Oxygen Reduction Pathway by Exfoliating Graphitic Carbon Nitride for Enhanced Photocatalytic Phenol Degradation

“…As shown in Figure 4a, fresh samples of the two photocatalysts exhibited similar Raman bands, the ones at 706 and 977 cm −1 corresponding to the breathing modes of triazine rings and the one at 750 cm −1 for the out-of-plane bending mode of the graphitic domains. 23 After irradiation in a O 2 bubbling suspension, a new broad band at 882 cm −1 was observed on g-C 3 N 4 nanosheets, which is assigned to 1,4-endoperoxide. 24 It is noted that the concentration of 1,4-endoperoxide in the suspension is low due to the subsequent conversion of this species to H 2 O 2 .…”