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Efficient fabrication and photocatalytic properties of TiO2 hollow spheres

Paper ID Volume ID Publish Year Pages File Format Full-Text
52970 46892 2009 5 PDF Available
Title
Efficient fabrication and photocatalytic properties of TiO2 hollow spheres
Abstract

Titania hollow spheres were synthesized via the styrene-methyl methacrylate copolymer (PSMMA) spheres as templates in conjunction with the sol–gel method without any surfactant or polyelectrolyte. Uniform TiO2 hollow spheres were made up of loosely aggregated anatase-phase nanoparticles. Compared to TiO2 nanoparticles (NPs), TiO2 hollow spheres exhibited a higher photocatalytic activity for the degradation of methyl orange (MO), which may be attributed to their larger specific surface area, more abundant porous structure and larger band-gap energy. In addition, the hollow spheres catalysts can be recycled.

Keywords
Hollow spheres; Titania; Photocatalytic activity
First Page Preview
Efficient fabrication and photocatalytic properties of TiO2 hollow spheres
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 5, 25 January 2009, Pages 650–654
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis