The Cu/La@TiO _x Composite: A Sustainable and Efficient Photocatalyst for <i>N</i> ‐benzylation Reaction Under Visible Light

Abstract In this study, a green and sustainable approach using visible light photocatalysis was employed for synthesizing N ‐benzyl aniline derivatives to create C─N bonds. A TiO 2 photocatalyst doped with copper and lanthanum was prepared to reduce the band gap and increase surface area. Ti x Cu y O z and Ti x Cu y La m O z nano‐photocatalysts were designed efficiently for organic reactions. Characterization techniques included TEM, FE‐SEM, XRD, EDX, FT‐IR, BET, BJH, UV–vis, ICP‐MS, CV, PL, and TPC. Using visible light as a renewable source, these photocatalysts showed high activity and recyclability up to five times, with Ti x Cu y La m O z displaying superior performance due to increased lanthanide content.