Photoelectrocatalytic hydrogen evolution and synchronous degradation of organic pollutants by pg-C3N4/β-FeOOH S-scheme heterojunction

Crafting photoelectrocatalytic materials with robust oxidation-reduction properties for simultaneous hydrogen evolution and pollutant degradation poses a formidable challenge. In this study, a pg-C3N4/β-FeOOH S-scheme heterostructure with a special energy band structure was developed by anchoring porous pg-C3N4 on needle shaped β-FeOOH. Functioning as a hole extraction layer, needle-leaf-like β-FeOOH can facilitate efficient hole migration and enhance charge transport. Remarkably, the optimized 0.2-pg-C3N4/β-FeOOH could degrade 78