Morphology and band structure regulation of graphitic carbon nitride microspheres by solvothermal temperature to boost photocatalytic activity

Solvothermal synthesis of various C3N4 films on FTO substrates and their photocatalytic and sensing applications

“…Two additional deconvoluted peaks at approximately 197.3 eV (orange) and 198.7 eV (purple) were associated with ionic bonding of Cl (Figure 4D). 38 For the KOH–NaCl samples (Figure 4E‐H), all spectra were similar to those of the pristine sample, but two additional deconvoluted peaks were observed at approximately 292.8 eV (pink, Figure 4E) 42 and 295 eV (blue, Figure 4E) 42 in the C 1s spectrum, which were attributable to ionic bonding of K 2p 3/2 and 2p 1/2 , respectively. Additional ionic bonding of Na was not observed because of negligible amounts of NaCl (approximately 6.9 × 10 −5 mol).…”

“…9,41 In the O 1s spectrum, two peaks at approximately 531.7 eV (red) and 533.1 eV (green) were deconvoluted and were attributable to C-OH and C=O, respectively ( Figure 4C). 38 In the Cl 2p spectrum, deconvoluted peaks at approximately 200.6 eV (red, Cl 2p 3/2 ) and 202.2 eV (green, Cl 2p 1/2 ) ( Figure 4D) indicated C-Cl bonds originating from C 3 Cl 3 N 3 precursors. 38 This is consistent with FTIR results (Figure 2A).…”

“…38 In the Cl 2p spectrum, deconvoluted peaks at approximately 200.6 eV (red, Cl 2p 3/2 ) and 202.2 eV (green, Cl 2p 1/2 ) ( Figure 4D) indicated C-Cl bonds originating from C 3 Cl 3 N 3 precursors. 38 This is consistent with FTIR results (Figure 2A). Two additional deconvoluted peaks at approximately 197.3 eV (orange) and 198.7 eV (purple) were associated with ionic bonding of Cl ( Figure 4D).…”

“…Generally, the two samples exhibited similar patterns of multiple bands at approximately 1200-1600 cm −1 , which were associated with typical C-N stretching and bending vibrations in nitrogen heterocycles. 36 The absorption bands at approximately 804 cm −1 and 3000-3600 cm −1 originated from a breathing mode of heptazine units 37 and N-H or O-H stretching vibrations, 38 respectively. Furthermore, the absorption at approximately 670 cm −1 was attributable to C-Cl vibrations of C 3 Cl 3 N 3 precursors.…”

Rational Design of Carbon Nitride Materials by Supramolecular Preorganization of Monomers

“…As a consequence, CCM−CN displayed improved capability in adsorption and photodegradation of MB dye. A similar procedure involving the reaction of dicyanamide and cyanuric chloride under solvothermal conditions produced CN at relatively low temperatures (160–200 °C) with a microsphere morphology and a promising performance in the degradation of a wide variety of organic dyes . Li et al.…”