The deactivation behavior of the TiO2 used as a photo-catalyst for benzene oxidation

Uner D., Ozbek S.

CATALYST DEACTIVATION 1999, cilt.126, ss.411-414, 1999 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 126
  • Basım Tarihi: 1999
  • Dergi Adı: CATALYST DEACTIVATION 1999
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
  • Sayfa Sayıları: ss.411-414
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

In this study, the deactivation behavior of TiO2 as a photocatalyst for benzene decomposition to carbon dioxide and water was investigated. The effect of space time on the benzene and carbon dioxide conversions were monitored. Benzene conversion and carbon dioxide production rates were not correlated, indicating accumulation of a carbon containing intermediate on the surface. This intermediate was blocking the active sites at a stiochiometry of 1 C:1 site. High space times favored the production of carbon dioxide therefore reduced the rate of accumulation of the surface poisoning intermediate.