Project Details:

Water Treatment and Photocatalysis, Part II: Quantum Yields and Turnover Numbers in Heterogeneous Photocatalysis

The terms quantum yield and quantum efficiency have been used in heterogeneous photocatalysis (a very important process in applied photochemistry) to infer the efficiency of a photon in carrying out a given process. There is, however, no common accord as to how to express this efficiency. In addition, the symbol phi has been borrowed from photochemistry in the homogeneous phase but with a different meaning, which has led to much confusion and taken away the ability to use phi to compare results from different sources. This project will address the question of how to assess process efficiencies in heterogeneous photocatalysis, and in particular the use of turnover numbers or frequencies.

Project Completed - Report entitled: 'Terminology,relative photonic efficiencies and quantum yields in heterogeneousphotocatalysis. Part II: Experimental determination of quantum yields,PureAppl. Chem. 71(2),321-335, 1999

Part I: Suggested protocol, PureAppl. Chem.71(2), 303-320, 1999