Exploring the important role of nanocrystals orientation in TiO₂ superstructure on photocatalytic performances.
Efficient charge separation has been widely accepted as one of the important factors responsible for the photocatalytic water splitting, organic oxidation, and solar cell, etc. TiO2 mesocrystal is a superstructure which could largely enhance charge separation, where TiO2 nanocrystals with parallel crystallographic alignment assemble in a form of oriented aggregation. Here, the intercrystal misorientation in TiO2 superstructure was first concerned and evaluated on the influence of photocatalytic efficiency. Our results showed that the intercrystal misorientation in TiO2 superstructures had a harmful effect on the charge separation efficiency.
†College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 201300, P. R. China.
Feifei
F
Chen
‡The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China.
Fenglei
F
Cao
†College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 201300, P. R. China.
Hexing
H
Li
‡The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China.
Zhenfeng
Z
Bian