Modeling the Activity and Selectivity of Semiconductor Photocatalysts in Heterogeneous Photocatalyzed Processes.Inclusion of Subsurface Electric Fields in the Space Charge Region.

摘要

In this study we consider modeling a photochemical reaction on the surface of a solid photocatalyst,which involves photogenerated charge carriers affected by a subsurface electric field.Two major properties of photocatalysts,namely their activity and selectivity,are examined.The analysis of factors that govern the activity and selectivity of photocatalysts is based on the solution to the continuity equation found using the quasi steady-state approach.