An efficient visible-light photocatalyst made from a nonpolar layered semiconductor by grafting electron-withdrawing organic molecules to its surface.
A nonpolar inorganic layered semiconductor becomes an efficient visible-light photocatalyst when its surface layer becomes polar by chemically attaching electron-withdrawing 4-substituted thiophenolates-S-C6H4Z (Z = NO2, COOH, Cl, Br, H, CH3, NH2) via Bi-S bonds. An in-depth study finds a correlation between the apparent rate constant (kapp) and the Hammett constants σparaof the 4-substituted groups.
State key of Crystal Materials, Shandong University, Shandong 250100, P. R. China. yyliu@sdu.edu.cn bbhuang@sdu.edu.cn.
Benyan
B
Xu
State key of Crystal Materials, Shandong University, Shandong 250100, P. R. China. yyliu@sdu.edu.cn bbhuang@sdu.edu.cn.
Yang
Y
An
State key of Crystal Materials, Shandong University, Shandong 250100, P. R. China. yyliu@sdu.edu.cn bbhuang@sdu.edu.cn.
Yuanyuan
Y
Liu
State key of Crystal Materials, Shandong University, Shandong 250100, P. R. China. yyliu@sdu.edu.cn bbhuang@sdu.edu.cn.
Baibiao
B
Huang
State key of Crystal Materials, Shandong University, Shandong 250100, P. R. China. yyliu@sdu.edu.cn bbhuang@sdu.edu.cn.
Xiaoyan
X
Qin
State key of Crystal Materials, Shandong University, Shandong 250100, P. R. China. yyliu@sdu.edu.cn bbhuang@sdu.edu.cn.
Xiaoyang
X
Zhang
School of Physics, Shandong University, Shandong 250100, P. R. China.
Ying
Y
Dai
Department of Chemistry, North Carolina State University, Raleigh, NC 27695-8204, USA.
Myung-Hwan
MH
Whangbo