[1] Univ Perugia, Lab Green SOC, Dipartimento Chim Biol & Biotecnol, Via Elce Sotto 8, I-06124 Perugia, Italy
[2] Katholieke Univ Leuven, Ctr Membrane Separat Adsorpt Catalysis & Spect Su, Celestijnenlaan 200F,Box 2454, B-3001 Leuven, Belgium
[3] Univ Perugia, Dipartimento Sci Farmaceut, Via Liceo 1, I-06123 Perugia, Italy
[4] Univ Antwerp, Electron Microscopy Mat Sci, Groenenborgerlaan 171, B-2020 Antwerp, Belgium