Photocatalytic Reduction of CO2by TiO2Nanotubes

H. H. Chang, L. W. Wei, H. L. Huang, H. Y. Chang, H. Paul Wang

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)

摘要

Continuously increasing atmospheric concentrations of CO2 have given rise to great concerns about climate change. Photocatalytic reduction of CO2 to chemicals by solar energy is considered a green and sustainable process. Interactions between CO2 molecules and photocatalysts surfaces are the key factors that affect photocatalytic reduction efficiency. Thus, a better understanding of their reactive species on the TiO2 nanotube (TNT) surfaces by in situ FTIR spectroscopy was studied in the present work. The FTIR absorbance features at 1303cm-1 and 1393cm-1 were associated with carbonate species, e.g., bidentate carbonate on the TNT. Complete desorption of CO2 from the TNT occurred at T>418K. The carboxylate species that were adsorbed on the TNT may conduct the surface reactions enhanced by UV-Vis light to yield low carbon chemicals.

原文English
文章編號2250032
期刊Nano
17
發行號4
DOIs
出版狀態Published - 2022 4月 1

All Science Journal Classification (ASJC) codes

  • 一般材料科學
  • 凝聚態物理學

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