5 years ago

Metal-Free Photocatalyst with Visible-Light-Driven Post-Illumination Catalytic Memory

Metal-Free Photocatalyst with Visible-Light-Driven Post-Illumination Catalytic Memory
Zhangliang Li, Hua Wang, Cong Geng, Jinhui Leng, Qi Zhang
A novel metal-free photocatalyst with post-illumination catalytic memory was fabricated by the graphitic carbon nitride (g-C3N4), carbon nanotubes (CNTs), and graphene (Gr), in which g-C3N4 acts as an efficient photocatalyst and the CNTs and Gr act as supercapacitors. The removal of phenol was achieved in the dark by post-illumination catalytic memory because the photocatalyst could store a portion of its photoactivity via photogenerated electrons in the CNTs and Gr under visible-light illumination and then release the electrons again in the dark. Therefore, this metal-free photocatalyst is capable of operation in the dark for a broad range of applications.

Publisher URL: http://dx.doi.org/10.1021/acsami.7b02473

DOI: 10.1021/acsami.7b02473

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