Evaluation of Efficient and Noble-Metal-Free NiTiO3 Nanofibers Sensitized with Porous gC3N4 Sheets for Photocatalytic Applications

One-dimensional nickel titanate nanofibers (NiTiO3 NFs) were synthesized and loaded with acetic acid-treated exfoliated sintered sheets of graphitic carbon nitride (AAs-gC3N4) to fabricate a unique heterogeneous structure. This novel fabrication method for porous AAs-gC3N4 using exfoliation followed by sintering provided gC3N4 surface area manifold larger than that bulk gC3N4, an abundance catalytically active sites. Hybrid photocatalysts through two-step process. Firstly, NiTiO3 NFs (360 nm in diameter) made electrospinning, these sensitized via sonication Varying the weight ratio fibers established containing 40 wt% exhibited optimal activity, i.e., removal methylene blue H2 evolution. After 60 min exposure visible light irradiation, 97% molecules removed hybrid photocatalyst, compared 82%, 72%, 76% pristine AAs-gC3N4, NFs, respectively. The structure also displayed excellent evolution performance. rate sample (152 ?mol g?1) was 2.2, 3.2 3-fold higher pure (69 g?1), (47 (50 clearly shows holey nanosheets interacted synergistically NFs. extended lifetime photogenerated charge carriers resulted superior photocatalytic activity gC3N4. Brunauer-Emmett-Teller presence many sites enhanced performance sample. Moreover, photoluminescence photocurrent response analysis, significant decrease recombination losses confirmed. Thus, this is strategy highly efficient precisely tunable operating windows separation.