Exploring the Important Role of Nanocrystals Orientation in TiO2 Superstructure on Photocatalytic Performances

被引：45

作者：

Chen, Feifei ^{[1
]}

Cao, Fenglei ^{[2
,3
]}

Li, Hexing ^{[1
]}

Bian, Zhenfeng ^{[2
,3
]}

机构：

[1] Shanghai Univ Elect Power, Coll Environm & Chem Engn, Shanghai 201300, Peoples R China

[2] Shanghai Normal Univ, Educ Minist, Key Lab Resource Chem, Shanghai 200234, Peoples R China

[3] Shanghai Normal Univ, Shanghai Key Lab Rare Earth Funct Mat, Shanghai 200234, Peoples R China

来源：

LANGMUIR | 2015年 / 31卷 / 11期

基金：

中国国家自然科学基金;

关键词：

SINGLE-CRYSTALS; MESOCRYSTALS; GROWTH; AU/TIO2;

D O I：

10.1021/la5048744

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：3494 / 3499

页数：6

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