Enhancing Photoactivity of TiO2(B)/Anatase Core–Shell Nanofibers by Selectively Doping Cerium Ions into the TiO2(B) Core (pages 5113–5119)
Prof. Dongjiang Yang, Dr. Jian Zhao, Dr. Hongwei Liu, Dr. Zhanfeng Zheng, Dr. Moses O. Adebajo, Dr. Hongxia Wang, Prof. Xiaotang Liu, Prof. Hongjie Zhang, Prof. Jin-cai Zhao, Prof. John Bell and Prof. Huaiyong Zhu
Version of Record online: 18 FEB 2013 | DOI: 10.1002/chem.201202719
Caught in a trap: Cerium ions (Ce3+) can be selectively doped into the TiO2(B) core of TiO2(B)/anatase core–shell nanofibers. The doped Ce3+ ions are located on the (110) plane of TiO2(B) by inserting them into the tunnels perpendicular to the (010) plane (see figure). They can trap the photogenerated holes by the formation of Ce4+ ions, and contribute to separation of photogenerated charges in the anatase shell.