g-C3N4-Based Direct Z-Scheme Photocatalysts for Environmental Applications

Photocatalysis represents a promising technology that might alleviate the current environmental crisis. One of most representative photocatalysts is graphitic carbon nitride (g-C3N4) due to its stability, cost-effectiveness, facile synthesis procedure, and absorption properties in visible light. Nevertheless, pristine g-C3N4 still exhibits low photoactivity rapid recombination photo-induced electron-hole (e?-h+) pairs. To solve this drawback, Z-scheme based on are superior alternatives since these systems present same band configuration but follow different charge carrier mechanism. contextualize topic, main drawbacks using as photocatalyst applications mentioned review. Then, basic concepts characterization addressed obtain novel with suitable photocatalytic activity (pollutant abatement, H2 production, CO2 reduction). Focusing g-C3N4, examples referred to, analyzed, commented text. conclude review, an outlook future challenges prospects g-C3N4-based addressed.