Fabrication of a novel AgI/LaFeO3/g-C3N4 dual Z-scheme photocatalyst with enhanced photocatalytic performance

Perovskite-type lanthanum ferrite based photocatalysts: Preparation, properties, and applications

“…Among the LaFeO3-based Z-scheme heterojunctions, the dual Z-scheme exhibit higher activity than the normal Z-scheme systems. Zhang et al [281] reported dual Z-scheme AgI/LaFeO3/g-C3N4 composite that was fabricated via an ultrasonic assisted C3N4/LaFeO3 composites. Schematic for charge separation and photocatalytic processes over g-C3N4/LaFeO3 Z-scheme composite (h).…”

Fabrication of La2O3/g-C3N4 Heterojunction with Enhanced Photocatalytic Performance of Tetracycline Hydrochloride

“…The resulting mixture was put into a vacuum drying oven at 80 • C for 12 h and then heated at 320 • C in a muffle furnace for 2 h to remove impurities. Finally, the La 2 O 3 /g-C 3 N 4 samples (with loads of 5%, 10%, 15% and 20%) were obtained, which were labeled as 5LaO/CN, 10LaO/CN, 15LaO/CN and 20LaO/CN, respectively [21].…”

“…The N 1s spectra are exhibited in Figure 4c; a pair of N peaks were distinguished at 398.3 eV and 399.7 eV, assigned to sp 2 hybridized N involved in the triazine rings (C-N=C) and tertiary nitrogen (N-(C 3 )), respectively [33][34][35]. Two peaks in Figure 4d were fitted to the O 1s spectrum at 527.7 eV and 529.7 eV, which corresponds to the hydroxyl groups (O-H) and (O-N), and the latter peak was assigned to the intermediates of melamine [21,36]. As shown in Figure 4e, four peaks were found in the La 3d XPS spectrum of the 10LaO/CN sample.…”

Impact of Titanium Dioxide (TiO2) Modification on Its Application to Pollution Treatment—A Review

“…The core of photocatalytic technology is the photocatalyst, and many materials can act as a photocatalyst [5]. Table 1 shows the published data of different photocatalysts, including TiO 2 [6][7][8], SrTiO 3 [9][10][11], ZnO [12][13][14], WO 3 [15][16][17], ZrO 2 [18][19][20], and g-C 3 N 4 [21][22][23], and their performance. Among these photocatalysts, TiO 2 occupies an important position due to its stable 2 of 32 physical and chemical properties, strong oxidation capacity, high photocatalytic activity, and excellent biocompatibility [24][25][26].…”

“…Ag-P-codoped g-C 3 N 4 8 W visible lamps sulfamethoxazole 99% [21] AgI/LaFeO 3 /g-C 3 N 4 500 W Xe lamp norfloxacin 95% [22] CdS/g-C 3 N 42 500 W Xe lamp rhodamine B 96% [23] The modification of TiO 2 to overcome the problems in the use of pure TiO 2 is one of the widely studied topics in the field of photocatalysis. Modified TiO 2 can improve its photocatalytic activity from different mechanisms, including the reduction of the band gap of TiO 2 -based materials, the decrease of the probability of recombination between electron and hole.…”