Construction of Z-scheme heterojunction based on BiOBr-nanoflakes embedded sulfonic-acid-functionalized g-C3N4 for enhanced photocatalytic removal of hazardous pollutants in aqueous media

Enriched photocatalytic and photoelectrochemical activities of a 2D/0D g-C3N4/CeO2 nanostructure

“…As an organic material, polymeric carbon nitride (g-C 3 N 4 ), a nitrogen-rich, metal-free conjugated polymer, has been widely studied due to its unique layer properties and good electrical, optical, and thermal stability characteristics. [10][11][12][13][14][15][16] Research has been conducted on the use of g-C 3 N 4 -based photocatalysts for environmental processing and energy generation. With an energy of ∼2.7 eV, g-C 3 N 4 has excellent thermal-to-chemical stability due to its tri-s-triazine-type structure and can act as a visible light-powered catalyst.…”

Exploring the synthetic potential of a g-C3N4·SO3H ionic liquid catalyst for one-pot synthesis of 1,1-dihomoarylmethane scaffoldsviaKnoevenagel–Michael reaction

“…g-C 3 N 4 $SO 3 H has a high surface area and unique electronic properties, making it a promising material for various applications. 43,45,46 It has also been used as a heterogeneous acid catalyst for esterication, aldol condensation, and acylation reactions. [47][48][49] Herein we have developed a highly efficient, green, and high-yielding multicomponent reaction for one-pot synthesis of 1,1-dihomoarylmethane scaffolds (bis-dimedones, bis-cyclohexanediones, bis-pyrazoles, and bis-coumarins) using substituted aryl aldehydes and C-H activated compounds, such as dimedone, 1,3-cyclohexanedione, 1phenyl-3-methyl-5-pyrazolone, and 4-hydroxycoumarin in aqueous ethanol using g-C 3 N 4 $SO 3 H as an ionic liquid catalyst.…”

g -C3N4–Co3O4 Z-Scheme Junction with Green-Synthesized ZnO Photocatalyst for Efficient Degradation of Methylene Blue in Aqueous Solution

“…Qiao's group demonstrated that phosphorus doping porous g-C 3 N 4 nanosheets can signifcantly lower the bandgap from 2.98 to 2.66 eV which creates more photo-excitation of electrons and holes [31][32][33][34]. Concerning the high electron-hole recombination rate of g-C 3 N 4 , it can be reduced by loading noble metals on its surface or creating junction with diferent other semiconductors such as TiO 2 /g-C 3 N 4 [35], graphene oxide/g-C 3 N 4 [36], Au/g-C 3 N 4 [37]/g-C 3 N 4 /α-Fe 2 O 3 [38], g-C 3 N 4 / Ag 2 O/TiO 2 [39], g-C 3 N 4 /Bi 2 WO 6 [40], Ag/g-C 3 N 4 [41], [42], Cu doped ZnO/g-C 3 N 4 [43], g-C 3 N 4 /Co 3 O 4 [44], BiOBr-NFs/g-C 3 N 4 -SAF [45], and Co 3 O 4 @CeO 2 [46], and ZnO is an inexpensive and nontoxic semiconductor material that has been utilized as a photocatalyst; however, due to its high band gap (3.2-3.3 eV), it is only active in the UV region of the solar spectrum [47][48][49]. Several literatures demonstrate that the ZnO-coupled g-C 3 N 4 composite has shown to increase the oxidation potential and removal efciency of inorganic and organic contaminants.…”