A Co_(3)O_(4)/BiOBr heterojunction was synthesized via a facile one-step solvothermal method for highly selec-tive photocatalytic CO_(2)reduction.The optimized Co_(3)O_(4)/BiOBr-0.8 catalyst exhibited CO and CH_(4)evo...A Co_(3)O_(4)/BiOBr heterojunction was synthesized via a facile one-step solvothermal method for highly selec-tive photocatalytic CO_(2)reduction.The optimized Co_(3)O_(4)/BiOBr-0.8 catalyst exhibited CO and CH_(4)evolution rates of 112.2 and 5.5µmol·g^(-1)·h^(-1),respectively,representing 6.3-fold and 3.9-fold enhancements over pristine BiOBr.The heterojunction demonstrated broadened light absorption,enhanced photoelectrochemical activity,reduced charge-transfer resistance,and improved separation efficiency of photogenerated carriers(e^(-)/h^(+)).These synergistic effects were attributed to the formation of a Z-scheme heterostructure,which facilitated solar energy utilization and electron reduction capacity while suppressing carrier recombination.展开更多
文摘A Co_(3)O_(4)/BiOBr heterojunction was synthesized via a facile one-step solvothermal method for highly selec-tive photocatalytic CO_(2)reduction.The optimized Co_(3)O_(4)/BiOBr-0.8 catalyst exhibited CO and CH_(4)evolution rates of 112.2 and 5.5µmol·g^(-1)·h^(-1),respectively,representing 6.3-fold and 3.9-fold enhancements over pristine BiOBr.The heterojunction demonstrated broadened light absorption,enhanced photoelectrochemical activity,reduced charge-transfer resistance,and improved separation efficiency of photogenerated carriers(e^(-)/h^(+)).These synergistic effects were attributed to the formation of a Z-scheme heterostructure,which facilitated solar energy utilization and electron reduction capacity while suppressing carrier recombination.
