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Issue 31, 2013
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Synthesis of hierarchical TiO2 nanoflower with anatase–rutile heterojunction as Ag support for efficient visible-light photocatalytic activity

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Abstract

Hierarchical flower-like TiO2 with an anatase–rutile heterojunction was prepared by a hydrothermal process in the presence of titanium trichloride and poly(sodium-p-styrenesulfonate) (PSS). The morphology evolution process and formation mechanism of the as-obtained products were investigated in detail. It was found that morphology and crystalline phase can be easily adjusted by changing the reaction time or solution system. On the basis of this hierarchical nanoflower structure, a visible light sensitive Ag/hierarchical flower-like TiO2 plasmonic photocatalyst was fabricated. The obtained composite exhibited significantly visible-light photocatalytic activity, which could be attributed to the existence of a large number of uniformly distributed Ag–TiO2 effective nanojunctions, enhanced visible light-harvesting and improved charge separation due to the migration across the anatase–rutile interface.

Graphical abstract: Synthesis of hierarchical TiO2 nanoflower with anatase–rutile heterojunction as Ag support for efficient visible-light photocatalytic activity

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Publication details

The article was received on 17 May 2013, accepted on 31 May 2013, published on 31 May 2013 and first published online on 31 May 2013


Article type: Paper
DOI: 10.1039/C3DT51293B
Citation: Dalton Trans., 2013,42, 11242-11251
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    Synthesis of hierarchical TiO2 nanoflower with anatase–rutile heterojunction as Ag support for efficient visible-light photocatalytic activity

    J. Zhou, G. Tian, Y. Chen, J. Wang, X. Cao, Y. Shi, K. Pan and H. Fu, Dalton Trans., 2013, 42, 11242
    DOI: 10.1039/C3DT51293B

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