Engineering the Photocatalytic Efficiency of Nanoscale TiO2 Anatase with Doped (Nd/Y) and Co-doped (Nd–Y/Nd–Sm) Lanthanides to Decompose the Azo Dye Orange G Under UV-VIS IrradiationInssaf Guetni & Mohammed Belaiche & Chouaib Ahmani Ferdi & Oussama Oulhakem & Kawtar Belrhiti Alaoui & Zakaria NaimiPDF8.3 MBEN