RSC ADVANCES RSC ADVANCES Ferrocenylselenoether and its cuprous cluster modified TiO2 as visible-light photocatalyst for the synergistic transformation of N-cyclic organics and Crvi Yang Zhuo Wang Jinshan Li Aimin Wang Chao Ji Wei Pires Elísabet Universidad de Zaragoza Yang Wenzhong Jing Su 2024 research-article