Photocatalytic activity enhancement of g-C3N4/BiOBr in selective transformation of primary amines to imines and its reaction mechanism

Advanced Two-Dimensional Heterojunction Photocatalysts of Stoichiometric and Non-Stoichiometric Bismuth Oxyhalides with Graphitic Carbon Nitride for Sustainable Energy and Environmental Applications

“…Therefore, a remarkably high quantum efficiency of 71% was achieved under visible light irradiation for isopropanol oxidation. A BiOBr/g-C 3 N 4 heterojunction photocatalyst synthesized through a two-step combustion-coprecipitation method was reported to exhibit excellent photooxidation of benzylamine to N-benzylidenebenzylamine with a conversion rate of 94% and a yield of 82% within 4 h of visible light irradiation obtained from white LED under atmospheric air [217]. The enhanced performance of the BiOBr/g-C 3 N 4 photocatalyst was ascribed to the improved charge transfer and separation driven by its apt band structure.…”

In Situ Liquid‐Phase Growth Strategies of g‐C3N4Solar‐Driven Heterogeneous Catalysts for Environmental Applications

“…Juntrapirom et al compounded BiOBr with g‐C 3 N 4 to examine the photocatalytic performance of the oxidative C–N coupling of benzylamine in a heterojunction under atmospheric air using cool white light‐emitting diode (LED) light. [ 83 ] The coprecipitation method was used to obtain g‐C 3 N 4 /BiOBr samples, where a certain amount of g‐C 3 N 4 was added to the mixture of Bi and Br precursor solution to synthesize the hybrid. The HRTEM image illustrates the lattice fringes with interplanar spacings of the (001) and (111) planes of BiOBr, the (001) plane of g‐C 3 N 4 , and the close interfacial contacts between them, indicating that the heterojunction was built ( Figure a).…”

“…Figure 15. a) HR-TEM of 10.2 wt% CB, b) photocatalytic performances of different catalysts,and c) proposed mechanisms for photocatalytic coupling of benzylamines under O 2 and N 2 atmospheres in the CB heterostructure system. Reproduced with permission [83]. Copyright 2020, Elsevier.…”

Novel BiOBr by compositing low-cost biochar for efficient ciprofloxacin removal: the synergy of adsorption and photocatalysis on the degradation kinetics and mechanism insight

“…17 However, the low efficiency of photogenerated electron-hole pair separation still limits its application. 18 To promote the separation efficiency of electron-hole pairs, BiOBr is composited with C 3 N 4 , 19 TiO 2 , 20 Ag, 21,22 Bi 2 WO 6 , 23 BiOX 24,25 and graphene oxide. 26 Nevertheless, many researchers have found that CIP absorbed quickly on the surface of the catalyst to achieve rapid degradation by the combination of photocatalysts and carbon materials because added carbon materials also inhibit the recombination of electrons and holes.…”