A. Mancuso, O. Sacco, V. Vaiano, D. Sannino, V. Venditto, S. Pragliola, N. Morante, Visible Light Active Fe-N Codoped TiO2 Synthesized through Sol Gel Method: Influence of Operating Conditions on Photocatalytic Performances, Chemical Engineering Transactions. 86 (2021) 565-570. doi:10.3303/CET2186095.