Hierarchical meso/macro-porous TiO2/graphitic carbon nitride nanofibers with enhanced hydrogen evolution

Constructing a hierarchical structure with tunable pore size is practical method to improve the capacity of photocatalytic hydrogen production catalysts. In this work, titanium dioxide/graphitic carbon nitride (TiO2/g-C3N4) nanofibers meso/macro-porous are fabricated by combining one-step electrospinning and calcination process, in which developed introducing polyvinylpyrrolidone liquid paraffin into solution. Comprehensive characterizations reveal that TiO2/g-C3N4 have improved ultraviolet-visible light absorption, separation efficiency carriers, performance. The H2 evolution up 1202 μmol g−1 7 h, better than those corresponding photocatalysts previously reported. This work provides new strategy build nanofiber an ideal solution TiO2/g-C3N4.