Cyclic carbonate formation from cycloaddition of CO2 to epoxides over bismuth subgallate photocatalyst

Lamia A. Siddig, Reem H. Alzard, Ha L. Nguyen, Ahmed Alzamly

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

One of the lucrative means of CO2 fixation is the chemical transformation of CO2 and epoxides into cyclic carbonates. In this regard, we report the photocatalytic synthesis of several cyclic carbonates using cycloaddition of CO2 to epoxides catalyzed by a bismuth subgallate coordination polymer photocatalyst, (Bi-gallate), under mild reaction conditions. Bi-gallate photocatalyst was characterized using various analytical and spectroscopic techniques including powder X-ray diffraction (PXRD), diffuse reflectance spectroscopy (DRS), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) analyses, nitrogen sorption measurements, and thermogravimetric analysis (TGA). The photocatalytic cycloaddition quantitatively converted various epoxides to corresponding cyclic carbonates in moderate to high conversions. Moreover, the photocatalyst could catalyze the cyclization reactions in three consecutive cycles without any loss of photocatalytic activity.

Original languageEnglish
Article number109672
JournalInorganic Chemistry Communication
Volume142
DOIs
Publication statusPublished - Aug 2022

Keywords

  • Band gap
  • CO utilization
  • Cyclic carbonates
  • Photocatalyst
  • Visible light

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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