Efficient synthesis of polymeric g-C3N4 layered materials as novel efficient visible light driven photocatalysts

TiO2/g-C3N4 nanosheets hybrid photocatalyst with enhanced photocatalytic activity under visible light irradiation

“…The band near 807 cm -1 corresponds to the out-of-plane bending vibration of the triazine units [2,35]. A broad band near 3140 cm -1 corresponds to the stretching modes of terminal NH 2 or NH groups at the defect sites of the aromatic ring [36]. As to the spectrum of pure TiO 2 , the weak absorption band centered at 443 cm -1 is attributed to the Ti-O-Ti stretching vibration [37].…”

Probing the activities of UV and visible-light absorbing photocatalyst powders using a resazurin-based photocatalyst activity indicator ink (Rz Paii )

“…All UV-vis spectra were recorded using an Agilent Technologies Cary 50 UV/vis spectrophotometer. The C3N4 photocatalyst powder was prepared using a literature method [24], in which, briefly, 10 g of urea were placed in a crucible and heated to 550°C at a ramp rate of 15°C min -1 and held there for 2 h, before being allowed to cool in air. Once cooled to room temperature, the pale yellow powder was used without further treatment.…”

Facile synthesis of g-C3N4 nanosheets loaded with WO3 nanoparticles with enhanced photocatalytic performance under visible light irradiation

“…10,11 Nevertheless, it has been concluded that the low photocatalytic activities of g-C 3 N 4 are mainly attributed to high recombination of photo-generated charge carriers and low specic surface area. [12][13][14] Many efforts have been made to overcome these bottlenecks. It was reported that ultrasonic vibration, 15 thermal exfoliation 16 and hydrothermal treatment 17 could be used to change the BET surface area.…”