Sn-doped 3D ATO inverse opal/hematite hierarchical structures: facile fabrication and efficient photoelectrochemical performance

被引：3

作者：

Zhang, Junjie ^{[1
]}

Li, Jing ^{[1
]}

Zhang, Boxue ^{[1
]}

Ye, Jianfeng ^{[1
]}

Wang, Yun ^{[1
]}

Ye, Xiaozhou ^{[1
]}

机构：

[1] Huazhong Agr Univ, Coll Sci, Dept Chem, Wuhan 430070, Peoples R China

来源：

RSC ADVANCES | 2018年 / 8卷 / 73期

基金：

中国国家自然科学基金;

关键词：

CHARGE SEPARATION; HEMATITE PHOTOANODE; NANOSHEET ARRAYS; LIGHT-ABSORPTION; NANOWIRE ARRAYS; TIN OXIDE; WATER; ALPHA-FE2O3; OPALS; TIO2;

D O I：

10.1039/c8ra06504g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The coupling of hematite with a three-dimensional (3D) conductive inverse opal (IO) skeleton provides an efficient route to enhance the photoelectrochemical (PEC) properties of hematite without changing its chemical composition. In this work, novel 3D antimony-doped SnO2 (ATO) IO/hematite heterostructures were facilely fabricated, and their PEC properties were thoroughly studied. Analysis of the morphologies and photocurrent densities of the 3D ATO IO//Fe2O3 heterostructures reveals that the high conductivity of the ATO skeleton as well as the high specific area and good light harvesting properties of the 3D IO structures greatly enhance their PEC performance. In particular, further morphology tuning by changing the diameters of the ATO IO skeletons could optimize the optical and electrical properties of the as-prepared heterostructures, demonstrating the important influence of morphology engineering on PEC performance. Moreover, after a simple Sn-doping process, the PEC properties of the as-prepared structure could be further enhanced; a photocurrent density of 1.28 mA cm(-2) at 1.23 V vs. RHE was obtained under AM 1.5G illumination.

引用

页码：42049 / 42059

页数：11