One-Step Synthesis Heterostructured g-C?N?/TiO? Composite for Rapid Degradation of Pollutants in Utilizing Visible Light.

ABSTRACT: To meet the urgent need of society for advanced photocatalytic materials, novel visible light driven heterostructured composite was constructed based on graphitic carbon nitride (g-C?N?) and fibrous TiO?. The g-C?N?/TiO? (CNT) composite was prepared through electrospinning technology and followed calcination process. The state of the g-C?N? and fibrous TiO? was tightly coupled. The photocatalytic performance was measured by degrading the Rhodamine B. Compared to commercial TiO? (P25^®) and electrospun TiO? nanofibers, the photocatalytic performance of CNT composite was higher than them. The formation of CNT heterostructures and the enlarged specific surface area enhanced the photocatalytic performance, suppressing the recombination rate of photogenerated carriers while broadening the absorption range of light spectrum. Our studies have demonstrated that heterostructured CNT composite with an appropriate proportion can rational use of visible light and can significantly promote the photogenerated charges transferred at the contact interface between g-C?N? and TiO?.

SUBMITTER: Liu H 

PROVIDER: S-EPMC6215260 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature