Defective nano-silica loaded polymeric carbon nitride for visible light driven CO2 reduction and dye degradation
Abstract
A hybrid composite of polymeric carbon nitride (PCN) and defective nano-silica (n‑SiOx) photocatalyst has been synthesized, exhibiting a high surface area, improved light response, and reduced charge recombination. The synergistic formation of PCN-n-SiOx interface facilitated photoinduced charge transfer from PCN to n‑SiOx, resulting in suppressed carrier recombination.
The resultant hybrid PCN-n-SiOx sample demonstrated a three-fold photocatalytic reduction of CO2 into methanol and formic acid. Furthermore, photoelectrocatalytic CO2 reduction selectively yielded 283.0 μmol L−1 of formic acid, a five-fold increment compared to bare PCN (57.0 μmol L−1).
These findings hold promise for the development of PCN-based hybrid composites for solar-powered applications.
by Toshali Bhoyar, B. Moses Abraham, Nilesh R. Manwar, Akanksha Gupta, Naresh Mameda, Surendar Tonda, Devthade Vidyasagar, Suresh S. Umare. Catalysis Communications, Volume 179 (106692).
DOI: 10.1016/j.catcom.2023.106692
First published: 6 May 2023
OPEN ACCESS — Article link:
https://doi.org/10.1016/j.catcom.2023.106692
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