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

Toshali Bhoyar, B. Moses Abraham, Nilesh R. Manwar, Akanksha Gupta, Naresh Mameda, Surendar Tonda, Devthade Vidyasagar, Suresh S. Umare

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Article number106692
JournalCatalysis Communications
Volume179
DOIs
StatePublished - Jun 2023

Bibliographical note

Publisher Copyright:
© 2023 The Authors

Keywords

  • CO reduction
  • Defective nano-silica
  • Photoelectrocatalytic
  • Photooxidation
  • Polymeric carbon nitride

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