Titania Derived from NH2-MIL-125(Ti) Metal–Organic Framework for Selective Photocatalytic Conversion of CO2 to Propylene Carbonate

Reem H. Alzard, Lamia A. Siddig, Nada Alhatti, Israa Abdallah, Latifa Aljabri, Afra Alblooshi, Ahmed Alzamly

Research output: Contribution to journalComment/debatepeer-review

7 Citations (Scopus)

Abstract

Titanium dioxide was prepared using titanium-based metal–organic framework (MOF) i.e., NH2-MIL-125(Ti) as a metal precursor. NH2-MIL-125(Ti) was synthesized then calcined at 400 °C, 500 °C, 550 °C, and 600 °C. The properties of NH2-MIL-125(Ti) and produced TiO2 were investigated using various techniques, including powder X-ray diffraction (PXRD), Brunauer–Emmett–Teller (BET), and UV–visible diffuse reflectance spectroscopy (UV–Vis DRS). A scanning electron microscopy (SEM) was used to observe surface morphology and energy-dispersive X-ray spectroscopy (EDX) to analyze elemental composition of prepared samples. PXRD pattern confirms TiO2 anatase phase formation when Ti-MOF was calcined up to 500 °C, whereas the formation of TiO2 rutile phase at calcination temperature of 600 °C. The photocatalytic activities of produced TiO2 photocatalysts were investigated for the cycloaddition reaction of CO2 to propylene oxide.

Original languageEnglish
Pages (from-to)1-15
Number of pages15
JournalComments on Inorganic Chemistry
Volume43
Issue number1
DOIs
Publication statusPublished - 2023

Keywords

  • NH-MIL-125(Ti)
  • TiO
  • UV light
  • band gap
  • photocatalyst

ASJC Scopus subject areas

  • Inorganic Chemistry

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