Nano-zirconia supported by graphitic carbon nitride for enhanced visible light photocatalytic activity

Abstract

Graphitic carbon nitride (g-C3N4) was prepared by high-temperature calcination of urea.

Graphitic carbon nitride with thermally-induced nitrogen defects: an efficient process to enhance photocatalytic H2 production performance

“…[6][7][8] Graphitic carbon nitride (g-C 3 N 4 ), as a new layered compound, is found to possess many merits, including appropriate band structure, high thermal and chemical stability and visible-light activity. 2,[9][10][11] Nonetheless, the shortcomings, such as poor quantum conversion efficiency, high recombination of photogenerated carriers and small specic surface area, greatly limit the application of bulky g-C 3 N 4 in water splitting. 12,13 Therefore, numerous approaches, 14 including exfoliation, [15][16][17] structural modication [18][19][20] and nano/ microstructure design, [21][22][23] have been developed to enhance the photoactivity of g-C 3 N 4 .…”

Nanocomposites with ZrO2@S-Doped g-C3N4 as an Enhanced Binder-Free Sensor: Synthesis and Characterization

“…The peak situated at 478 cm –1 is attributed to Zr–O vibrations . With increasing ZrO 2 NPs, peak positions vary around 509 and 3373 cm –1 . FT-IR of ZrO 2 @S-doped g-C 3 N 4 NCs is similar to that of pure phase S-doped g-C 3 N 4 .…”

“…With increasing ZrO 2 NPs, peak positions vary around 509 and 3373 cm –1 . FT-IR of ZrO 2 @S-doped g-C 3 N 4 NCs is similar to that of pure phase S-doped g-C 3 N 4 . While ZrO 2 has been added to the surface of S-doped g-C 3 N 4 , primary characteristic peaks of both S-doped g-C 3 N 4 and ZrO 2 are visible.…”

“…The calculated E g values of NCs prepared from various ratios of ZrO 2 were approximately 2.33, 2.34, 2.35, and 3.38 eV for 5, 10, 20, and 30% of ZrO 2 , respectively. The values were closer to the known values reported in the literature. , It was noticed that the ZrO 2 @S-doped g-C 3 N 4 NC has better light absorption properties than g-C 3 N 4 and S-doped g-C 3 N 4 and ZrO 2 . It may be due to the synergistic effect between the interactions of ZrO 2 with S-doped g-C 3 N 4 .…”

Harmonizing the photocatalytic activity of g-C3N4 nanosheets by ZrO2 stuffing: From fabrication to experimental study for the wastewater treatment

“…Furthermore, these obtained results designate that combining ZrO 2 develops the visible radiation absorption appearance of pure g-C 3 N 4 . The energy gap estimation was computed employing the Kubelka-Munk equation [29,30]:…”