3 years ago

Photocatalytic reduction of CO2 over facet engineered TiO2 nanocrystals supported by carbon nanofibers under simulated sunlight irradiation

Photocatalytic reduction of CO2 over facet engineered TiO2 nanocrystals supported by carbon nanofibers under simulated sunlight irradiation
Carbon nanofibers (CNFs) supported facet engineered TiO2 nanocrystals (NCs) were one-step synthesized by a solvothermal method and their photocatalytic CO2 reduction performance were investigated under simulated sunlight irradiation. The results show that anatase TiO2 NCs with {001} and {101} facets coexposure were homogeneously dispersed on CNFs and combined firmly with CNFs. The enhanced photocatalytic CO2 reduction activity of the composites can be attributed to the formation of TiO2‑carbon heterojunction and the surface heterojunction between the {001}/{101} facets of TiO2 crystals, which accelerate the separation of photogenerated electron-hole pairs and extend the light response of TiO2 to the visible light region simultaneously.

Publisher URL: www.sciencedirect.com/science

DOI: S1566736718300311

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