Hierarchical WO3 hollow shells: Dendrite, sphere, dumbbell, and their photocatalytic properties

Di Chen*, Jinhua Ye

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

565 Citations (Scopus)

Abstract

In this work, hierarchical WO3 hollow shells: dendrites, spheres and dumbbells have been successfully synthesized by simply calcining the acid-treated PbWO4 and SrWO4 as precursors at 500°C for 2 h. These hollow structures were characterized using X-ray diffraction, scanning and transmission electron microscopies, Brunauer-Emmet-Teller surface area and diffuse reflectance spectroscopy, respectively. Possible formation mechanisms for hollow WO3 shells consisted of tiny nanoplatelets were investigated in detail. Comparing with commercial WO3 particles, all the obtained hollow shells with larger BET surface areas showed enhanced photocatalytic activities for the degradation of organic contaminants under visible light irradiation.

Original languageEnglish
Pages (from-to)1922-1928
Number of pages7
JournalAdvanced Functional Materials
Volume18
Issue number13
DOIs
Publication statusPublished - 9 Jul 2008
Externally publishedYes

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