Synthesis of Coupled Semiconductor by Filling 1D TiO2 Nanotubes with CdS

被引：320

作者：

Banerjee, Subarna ^{[1
]}

Mohapatra, Susanta K. ^{[1
]}

Das, Prajna P. ^{[1
]}

Misra, Mano ^{[1
]}

机构：

[1] Univ Nevada, Reno, NV 89557 USA

来源：

CHEMISTRY OF MATERIALS | 2008年 / 20卷 / 21期

关键词：

D O I：

10.1021/cm802282t

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A Coupled semiconductor material is prepared by filling one-dimensional (ID) titania (TiO2) nanotubes (NTs) with cadmium sulfide (CdS) nanoparticles (NPs). Self-assembled TiO2 NTs (length = 550 nm, diameter = 80 nm) are prepared by the sonoelectrochemical anodization method. These NTs are functionalized with US NPs by a single-step electrodeposition method. This material harvests solar light in UV as well as visible light (up to 510 nm) region. An eight to 9-fold enhancement in photoactivity is observed using US functionalized TiO2 NTs compared to pure TiO2 NTs and commercial P25 NPs. This methodology will be useful in designing multijunction semiconductor materials confined inside ID nanochannels.

引用

页码：6784 / 6791

页数：8

共 59 条

[1] Self-organized, free-standing TiO2 nanotube membrane for flow-through photocatalytic applications [J].