Article Title

Low-cost synthesis of robust anatase polyhedral structures with a preponderance of exposed {001} facets for enhanced photoactivities

Authors

Yu Yu, Beijing National Laboratory for Molecular Sciences (BNLMS), Laboratory for Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China The Graduate University of the Chinese Academy of Sciences, Yuquanlu, Beijing 100049, China
Changyan Cao, Beijing National Laboratory for Molecular Sciences (BNLMS), Laboratory for Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Wei Li, Beijing National Laboratory for Molecular Sciences (BNLMS), Laboratory for Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Ping Li, Beijing National Laboratory for Molecular Sciences (BNLMS), Laboratory for Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China The Graduate University of the Chinese Academy of Sciences, Yuquanlu, Beijing 100049, China
Jin Qu, Beijing National Laboratory for Molecular Sciences (BNLMS), Laboratory for Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Weiguo Song, Beijing National Laboratory for Molecular Sciences (BNLMS), Laboratory for Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China

Keywords

High-energy facets, anatase TiO2, crystal growth, photodegradation, low-cost

Abstract

ABSTRACT Anatase polyhedral materials with a preponderance of exposed {001} facets have been produced using (NH4)2TiF6 and water as raw materials. The crystallographic structure and the growth mechanism of the anatase TiO2 product were investigated systematically by XRD (X-ray diffraction), scanning electron microscopy (SEM), TEM (transmission electron microscope), and ultraviolet (UV) visible and photoluminescence spectroscopy. The products exhibited significantly higher activities than commercial P25 titania nanoparticles in the photocatalytic degradation of methylene blue dye. Moreover, the materials have large particle sizes and are very robust, making them suited for practical uses.

Graphical Abstract

DOI

https://doi.org/10.1007/s12274-012-0226-1

Publisher

Tsinghua University Press

Recommended Citation

Yu Yu,Changyan Cao,Wei Li,Ping Li,Jin Qu,Weiguo Song, Low-cost synthesis of robust anatase polyhedral structures with a preponderance of exposed {001} facets for enhanced photoactivities. NanoRes.2012, 5(6): 434–442