FTIR study of adsorption and reactions of methylamine on powdered TiO2

Li Fen Liao, Wen Chun Wu, Chih Chung Chuang, Jong Liang Lin

研究成果: Article同行評審

26 引文 斯高帕斯(Scopus)

摘要

The adsorption, thermal reactions, and photochemistry of methylamine on TiO2 have been investigated using infrared spectroscopy. It is found that methylamine is adsorbed molecularly on TiO2 at 35 °C. Hydrogen exchange occurs between the NH2 group of adsorbed methylamine and surface OH groups. Thermal reactivity of methylamine is enhanced in the presence of O2, producing NH3(g), CO2(g), and other oxygenated compounds. UV irradiation of TiO2 in the presence of methylamine and oxygen generates NH2(g), CO2(g), H2O(g), NCO-(a), and HCOO(a). Possible reaction steps for the photoproducts are discussed.

原文English
頁(從 - 到)5928-5934
頁數7
期刊Journal of Physical Chemistry B
105
發行號25
DOIs
出版狀態Published - 2001 六月 28

All Science Journal Classification (ASJC) codes

  • 物理與理論化學
  • 表面、塗料和薄膜
  • 材料化學

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