[1] Univ Salento, Dept Engn Innovat, I-73100 Lecce, Italy
[2] CNR, Inst Nanosci, NNL, I-73100 Lecce, Italy
[3] Univ Bari A Moro, Dept Chem, I-70126 Bari, Italy
[4] Univ Fed Ceara, Lab Prod & Proc Technol LPT, Dept Organ & Inorgan Chem, BR-6021 Fortaleza, Ceara, Brazil