Enhanced Photocatalytic Activity of Bi 24 O 31 Br 10 : Constructing Heterojunction with BiOI Lou Xi,Shang Jun,Wang Liang,Feng Haifeng,Hao Weichang,Wang Tianmin,Du Yi 1 Center of Material Physics and Chemistry, Beihang University, Beijing 100191, China 2 College of Physics and Electronic Engineering, Henan Normal University, Xinxiang 453007, China 3 Institute for Superconducting and Electronic Materials (ISEM), University of Wollongong, Wollongong, NSW 2500, Australia Journal of Materials Science & Technology,2017,33(3),281-284.