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

doi:10.1016/j.catcom.2023.106692

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

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

A hybrid composite of polymeric carbon nitride (PCN) and defective nano-silica (n-SiO_x) photocatalyst has been synthesized, exhibiting a high surface area, improved light response, and reduced charge recombination. The synergistic formation of PCN-n-SiO_x interface facilitated photoinduced charge transfer from PCN to n-SiO_x, resulting in suppressed carrier recombination. The resultant hybrid PCN-n-SiO_x 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 language	English
Article number	106692
Journal	Catalysis Communications
Volume	179
DOIs	https://doi.org/10.1016/j.catcom.2023.106692
State	Published - Jun 2023

Bibliographical note

Publisher Copyright:
© 2023 The Authors

Funding

We thank the Department of Science and Technology Fund for Improvement of S&T Infrastructure (DST-FIST) ( SR/FIST/CSI-279/2016(C) ) for providing infrastructure. We thank SAIF Shillong and IISc, Bangalore, for their support in the characterization of the samples. TB acknowledges the Director, VNIT Nagpur, for the financial support. NM is thankful to PASIFIC postdoctoral funding received from the European Union's Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement No. 847639 and from the Ministry of Education and Science. BMA acknowledges the HPC center, IIT Kanpur for the computational facilities.

Funders	Funder number
VNIT Nagpur
H2020 Marie Skłodowska-Curie Actions	847639
Department of Science and Technology, Ministry of Science and Technology, India	SR/FIST/CSI-279/2016
Ministry of Education and Science
Horizon 2020

Keywords

CO reduction
Defective nano-silica
Photoelectrocatalytic
Photooxidation
Polymeric carbon nitride

Access to Document

10.1016/j.catcom.2023.106692

Cite this

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title = "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.",

keywords = "CO reduction, Defective nano-silica, Photoelectrocatalytic, Photooxidation, Polymeric carbon nitride",

author = "Toshali Bhoyar and Abraham, {B. Moses} and Manwar, {Nilesh R.} and Akanksha Gupta and Naresh Mameda and Surendar Tonda and Devthade Vidyasagar and Umare, {Suresh S.}",

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AU - Bhoyar, Toshali

AU - Abraham, B. Moses

AU - Manwar, Nilesh R.

AU - Gupta, Akanksha

AU - Mameda, Naresh

AU - Tonda, Surendar

AU - Vidyasagar, Devthade

AU - Umare, Suresh S.

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AB - 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.

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