Photoinduced reversible shape conversion of silver nanoparticles assisted by TiO₂.

Tang,B, Zhang,M, Yao,Y, Sun,L, Li,J, Xu,S, Chen,W, Xu,W and Wang,X 2014, Photoinduced reversible shape conversion of silver nanoparticles assisted by TiO₂., Physical Chemistry Chemical Physics, vol. 16, no. 40, pp. 21999-22007, doi: 10.1039/c4cp02874k.

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Title Photoinduced reversible shape conversion of silver nanoparticles assisted by TiO₂.
Author(s) Tang,BORCID iD for Tang,B orcid.org/0000-0001-7111-8223
Zhang,M
Yao,Y
Sun,LORCID iD for Sun,L orcid.org/0000-0003-2999-1250
Li,JORCID iD for Li,J orcid.org/0000-0003-0709-2246
Xu,S
Chen,W
Xu,W
Wang,XORCID iD for Wang,X orcid.org/0000-0002-3549-6769
Journal name Physical Chemistry Chemical Physics
Volume number 16
Issue number 40
Start page 21999
End page 22007
Total pages 9
Publisher Royal Society of Chemistry Publications
Place of publication Cambridge, United Kingdom
Publication date 2014-10-28
ISSN 1463-9084
Keyword(s) Science & Technology
Physical Sciences
Chemistry, Physical
Physics, Atomic, Molecular & Chemical
Chemistry
Physics
SURFACE-PLASMON RESONANCE
OPTICAL-PROPERTIES
TITANIUM-DIOXIDE
PHOTOCATALYTIC DEGRADATION
MULTICOLOR PHOTOCHROMISM
PHOTOMEDIATED SYNTHESIS
ANATASE TIO2
SIZE
NANOPRISMS
EVOLUTION
Summary Silver nanoprisms were transformed into nanodecahedra through photoinduction of ultraviolet (UV) light in the presence of titanium dioxide (TiO2) quantum dots (QDs). Subsequently, the silver nanodecahedra were reconverted to silver nanoprisms under sodium lamp if there was sufficient citrate in the reaction system. The localized surface plasmon resonance (LSPR) optical properties of silver nanoparticles were tuned during photoinduced shape conversion. The photocatalytic activity of TiO2 QDs assisted the conversion of prisms to decahedra upon UV light irradiation. Nevertheless, the presence of TiO2 did not inhibit the photoinduced reconversion from decahedra to prisms by sodium light. It was demonstrated that citrate was indispensable in the photoinduction process. In addition, oxygen in solution played a vital role in the reversible shape conversion of silver nanoparticles. Moreover, simulated sunlight can convert silver nanoprisms to nanodecahedra instead of UV light with assistance of TiO2 QDs, which would promote the photoinduced reaction of silver nanoparticles based on a natural light source.
Language eng
DOI 10.1039/c4cp02874k
Field of Research 100708 Nanomaterials
Socio Economic Objective 970102 Expanding Knowledge in the Physical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Royal Society of Chemistry Publications
Persistent URL http://hdl.handle.net/10536/DRO/DU:30070033

Document type: Journal Article
Collections: Institute for Frontier Materials
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