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Defective nano-silica loaded polymeric carbon nitride for visible light driven CO2 reduction and dye degradation



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 L1 of formic acid, a five-fold increment compared to bare PCN (57.0 μmol L1).

These findings hold promise for the development of PCN-based hybrid composites for solar-powered applications. 

Defective nano-silica loaded polymeric carbon nitride for visible light driven CO<sub>2</sub> reduction and dye degradation

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

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