Nano Archive

Aqueous synthesis of mesostructured BiVO4 quantum tubes with excellent dual response to visible light and temperature

Sun, Yongfu and Xie, Yi and Wu, Changzheng and Zhang, Shudong and Jiang, Shishi (2010) Aqueous synthesis of mesostructured BiVO4 quantum tubes with excellent dual response to visible light and temperature. Nano Research, 3 (9). pp. 620-631.

Full text is not hosted in this archive but may be available via the Official URL, or by requesting a copy from the corresponding author.

Abstract

Analysis of the atomic structure of monoclinic BiVO4 reveals its fascinating structure-related dual response to visible light and temperature. Although there have been a few reported studies of its responses to visible light and temperature, an understanding of the effects of quantum size, particle shape or specific exposed facets on its dual responsive properties remains elusive; this is primarily due to the limited availability of high-quality monodisperse nanocrystals with extremely small sizes and specific exposed facets. Herein, we describe a novel assembly-fusion strategy for the synthesis of mesostructured monoclinic BiVO4 quantum tubes with ultranarrow diameter of 5 nm, ultrathin wall thickness down to 1 nm and exposed {020} facets, via a convenient hydrothermal method at temperatures as low as 100 °C. Notably, the resulting high-quality quantum tubes possess significantly superior dual-responsive properties compared with bulk BiVO4 or even BiVO4 nanoellipsoids, and thus, show high promise for applications as visible-light photocatalysts and temperature indicators offering improved environmental quality and safety. This mild and facile methodology should be capable of extension to the preparation of other mesostructured inorganic quantum tubes with similar characteristics, giving a range of materials with enhanced dual-responsive properties.

Item Type:Article
Subjects:Material Science > Nanostructured materials
ID Code:9691
Deposited By:CSMNT
Deposited On:15 Oct 2010 01:56
Last Modified:15 Oct 2010 01:56

Repository Staff Only: item control page