Time-resolved kinetic assessment of the role of singlet and triplet excited states in the photocatalytic treatment of pollutants at different concentrations

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• 作者：R. Martinez-Haya^a ; J. Gomis^b ; A. Arques^b ; ^{aarques@txp.upv.es} ; M.L. Marin^a ; ^{marmarin@qim.upv.es} ; A.M. Amat^b ; M.A. Miranda^a
• 关键词：Electron transfer ; Laser flash photolysis ; Photo-redox catalysis ; Singlet excited state ; Triplet excited state
• 刊名：Applied Catalysis B: Environmental
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：203
• 期：Complete
• 页码：381-388
• 全文大小：1068 K
• 卷排序：203

文摘

Photocatalysts should have an appropriate redox potential in the excited states. The role of each excited species is determined from a kinetic-based rationale. In order to be efficient, the acting excited species should have long lifetimes. The efficiency of excited species is enhanced at high pollutants concentration. In general, triplet excited states perform better due to their longer lifetimes.