Fabrication of Cu2O-RGO/BiVO4 nanocomposite for simultaneous photocatalytic CO2 reduction and benzyl alcohol oxidation under visible light

Coupling Strategy for CO2Valorization Integrated with Organic Synthesis by Heterogeneous Photocatalysis

“…More recently,t he same group constructed the ternary complex Cu 2 O-RGO/BiVO 4 (where RGO refers to reduced graphene oxide) for promoting the simultaneous reduction of CO 2 to HCOOH and oxidation of BA to BD under visiblelight irradiation with stable activity. [62] Thef act that the photocatalytic activity of ternary Cu 2 O-RGO/BiVO 4 is much higher than that of bare Cu 2 Oa nd binary RGO/BiVO 4 (Figure 13 B) can be attributed to the efficient Z-scheme charge transfer among the different components of the composites.T hat is,t he photogenerated electrons in the CB of BiVO 4 transferred and recombined with the photogenerated holes in the VB of Cu 2 O, during which RGO played the role of electron mediator (Figure 13 C). This study demonstrated the utmost potential of constructing Z-scheme charge transfer systems for straddling the dual-functional photocatalytic reactions.…”

Solar‐powered chemistry: Engineering low‐dimensional carbon nitride‐based nanostructures for selective CO2 conversion to C1C2 products

“…Other issues echo the ones mentioned for CO 2 reduction, that is the lack of fundamental understanding toward the reaction mechanism, low selectivity and rapid charge carrier recombination. Thus, novel systems like the Cu 2 O‐RGO/BiVO 4 Z‐scheme nanocomposite has been constructed to achieve the simultaneous solar‐driven CO 2 reduction and benzyl alcohol oxidation, producing value‐added C‐fuels and benzaldehyde that would require high energy requirements with the conventional synthesis route 353 . Although carbon nitride‐based systems have yet to be utilized in simultaneous reactions with CO 2 reduction, novel systems such as the Ag/g‐C 3 N 4 ‐Ag‐Ag 3 PO 4 (110) Z‐scheme heterojunction, 354 CQD implanted g‐C 3 N 4 , 355 and ultrathin porous g‐C 3 N 4 bundles 356 have been constructed for simultaneous photocatalytic waste water treatment and water splitting reaction, indicating its potential for further development toward CO 2 RR in the near future.…”

Photocatalytic activity enhancement of Cu2O cubes functionalized with 2-ethynyl-6-methoxynaphthalene through band structure modulation

“…Beyond the typical metal, graphene, and semiconductor deposition, as well as metal–semiconductor core–shell formation, to create semiconductor heterostructures for enhanced photocatalytic performance, 25–31 surface molecular functionalization may be a new approach for increased photocatalytic activity. 32 Recent surface functionalization of Cu 2 O crystals with conjugated 4-ethynylaniline (4-EA) showed an unexpected excellent photocatalytic activity for Cu 2 O cubes, while rhombic dodecahedra gave a notably improved activity and octahedra presented a moderate activity enhancement.…”