1. Istituto per lo Studio dei Materiali Nanostrutturati, CNR; via U. La Malfa 153 90146 Palermo Italy
2. “Schiavello-Grillone” Photocatalysis Group; DEIM; Università degli Studi di Palermo; Palermo Italy
3. State Key Laboratory of Photocatalysis on Energy and Environment; College of Chemistry and Chemical Engineering; Fuzhou University; Fuzhou 350002 P.R. China