M. Nadareishvili
Andronikashvili Institute of Physics, Ivane Javakhishvili Tbilisi State University, Tamarashvili St 6, Tbilisi, 0177, Georgia
G. Mamniashvili
Andronikashvili Institute of Physics, Ivane Javakhishvili Tbilisi State University, Tamarashvili St 6, Tbilisi, 0177, Georgia
T. Gegechkori
Andronikashvili Institute of Physics, Ivane Javakhishvili Tbilisi State University, Tamarashvili St 6, Tbilisi, 0177, Georgia
S. Gogichaishvili
Ivane Javakhishvili Tbilisi State University, Chavchavadze Ave 1, Tbilisi, 0179, Georgia
T. Zedginidze
Andronikashvili Institute of Physics, Ivane Javakhishvili Tbilisi State University, Tamarashvili St 6, Tbilisi, 0177, Georgia
T. Petriashvili
Andronikashvili Institute of Physics, Ivane Javakhishvili Tbilisi State University, Tamarashvili St 6, Tbilisi, 0177, Georgia
A. Shengelaya
Ivane Javakhishvili Tbilisi State University, Chavchavadze Ave 1, Tbilisi, 0179, Georgia
D. Daraselia
Ivane Javakhishvili Tbilisi State University, Chavchavadze Ave 1, Tbilisi, 0179, Georgia
D. Japaridze
Ivane Javakhishvili Tbilisi State University, Chavchavadze Ave 1, Tbilisi, 0179, Georgia
E. Chikvaidze
Ivane Javakhishvili Tbilisi State University, Chavchavadze Ave 1, Tbilisi, 0179, Georgia
T. Gogoladze
Ivane Javakhishvili Tbilisi State University, Chavchavadze Ave 1, Tbilisi, 0179, Georgia
C.V. Ramana
Mechanical Engineering, University of Texas (UTEP), El Paso, 79902, TX, United States
J.J. Ramsden
Abstract
Titanium dioxide particles coated by cobalt nanoclusters have been prepared by a novel electroless deposition method. The presence of the Co clusters on the TiO2 surface was confirmed by measuring the temperature dependence of magnetization. Optical spectroscopy revealed a significant increase of light absorption due to the Co clusters. Electron paramagnetic resonance (EPR) spectroscopy was used to quantify the photocatalytic production of radicals, which measurement could be used to determine the optimum cobalt deposition time for maximizing photocatalytic radical production.
