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TiO2/SnO2 double-shelled hollow spheres-highly efficient photocatalyst for the degradation of rhodamine B

Paper ID Volume ID Publish Year Pages File Format Full-Text
49483 46746 2015 5 PDF Available
Title
TiO2/SnO2 double-shelled hollow spheres-highly efficient photocatalyst for the degradation of rhodamine B
Abstract

•TiO2/SnO2 hollow spheres were fabricated by a two-step LPD using C sphere templates.•TiO2/SnO2 hollow spheres have surface area of 46.1 m2/g and mesopore size of 3.5 nm.•TiO2/SnO2 hollow spheres show a distinctly stronger SPV response.•TiO2/SnO2 hollow spheres show a superior photocatalytic activity for decomposition of RhB.

TiO2/SnO2 double-shelled hollow spheres are successfully synthesized by two-step liquid-phase deposition method using carbon sphere templates. The formation process of TiO2/SnO2 hollow spheres is discussed. The samples are characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy and UV–vis absorption spectroscopy. The behavior of photogenerated charges in the TiO2/SnO2 heterojunction structures has been investigated through surface photovoltage spectroscopy. The TiO2/SnO2 hollow spheres which are realized show significantly enhanced photocatalytic activities, with respect to the cases of SnO2 and TiO2 hollow spheres. Furthermore, TiO2/SnO2 hollow spheres show good recyclable photocatalytic activities.

Keywords
Hollow spheres; Liquid-phase deposition; Photocatalysis; SnO2; TiO2
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TiO2/SnO2 double-shelled hollow spheres-highly efficient photocatalyst for the degradation of rhodamine B
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 60, 5 February 2015, Pages 129–133
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
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