Photoinduced interaction between riboflavin and TiO(2) colloid.
The adsorption of riboflavin on the surface of TiO(2) colloidal particles and the electron transfer process from its singlet excited state to the conduction band of TiO(2) were examined by absorption and fluorescence quenching measurements. The apparent association constants (K(app)) were determined. The quenching mechanism is discussed involving electron transfer from riboflavin to TiO(2).
Kathiravan
A
A
School of Chemistry, Bharathidasan University, Tiruchirappalli 620024, Tamil Nadu, India.
Renganathan
R
R
D000327:Adsorption; D003102:Colloids / Q000737:chemistry / Q000528:radiation effects; D004579:Electron Transport; D007700:Kinetics; D055668:Photochemical Processes; D017319:Photosensitizing Agents / Q000737:chemistry / Q000528:radiation effects; D045663:Quantum Dots; D012256:Riboflavin / Q000737:chemistry* / Q000528:radiation effects*; D013050:Spectrometry, Fluorescence; D013053:Spectrophotometry; D013499:Surface Properties; D013816:Thermodynamics; D014025:Titanium / Q000737:chemistry* / Q000528:radiation effects*
D003102:Colloids; D017319:Photosensitizing Agents; C009495:titanium dioxide; D014025:Titanium; D012256:Riboflavin