Black TiO2-supported copper nanoparticles for efficient photocatalytic N-formylation of N-methylaniline with CO2

Shibo Yuan, Peng Bai, Yi He, Jiafa Chen, Yicheng Zhao*, Yongdan Li

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)
57 Downloads (Pure)

Abstract

Photocatalytic N-formylation of amines with CO2 is a promising strategy to convert CO2 into value-added chemicals sustainably. In this work, a black TiO2-supported Cu photocatalyst is prepared through a solvothermal method for the N-formylation of N-methylaniline with NaBH4 as the reducing agent. Cu nanoparticles and oxygen vacancies are formed on the surface of the photocatalyst after reduction with H2, which decreases the band-gap energy and promotes the separation of photogenerated electrons and holes, thereby improving the photocatalytic activity remarkably. A 100 % conversion is achieved after 9 h radiation, and the yield of N-methylformanilide reaches 81 %. Both the amount of NaBH4 and the pressure of CO2 show important influences on the activity and selectivity of the photocatalytic process, and the carbon and hydrogen in the aldehyde group are from CO2 and NaBH4, respectively. The photocatalyst also shows promising cycling durability.

Original languageEnglish
Article number102453
Number of pages9
JournalJournal of CO2 Utilization
Volume71
Early online date20 Mar 2023
DOIs
Publication statusPublished - May 2023
MoE publication typeA1 Journal article-refereed

Keywords

  • Black titanium dioxide
  • CO reduction
  • N-formylation
  • N-methylaniline
  • Photocatalysis

Fingerprint

Dive into the research topics of 'Black TiO2-supported copper nanoparticles for efficient photocatalytic N-formylation of N-methylaniline with CO2'. Together they form a unique fingerprint.

Cite this