were carried out using
10 mL solution containing 100 lM of phenol and 500 lg/mL of
TiO2 (25 nm, anatase) in a Pyrex glass vial of 15 mL (diameter
2 cm). The UV lamp (Bioblock) emitting light of 365 nm was located
5 cm above the reaction vial. The reaction mixture was continuously
stirred.