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dc.contributor.authorZhang, H.
dc.contributor.authorLi, Xin Yong
dc.contributor.authorChen, G.
dc.date.accessioned2017-01-30T12:24:32Z
dc.date.available2017-01-30T12:24:32Z
dc.date.created2016-09-12T08:36:45Z
dc.date.issued2009
dc.identifier.citationZhang, H. and Li, X.Y. and Chen, G. 2009. Ionic liquid-facilitated synthesis and catalytic activity of highly dispersed Ag nanoclusters supported on TiO2. Journal of Materials Chemistry. 19 (43): pp. 8223-8231.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/21329
dc.identifier.doi10.1039/b910610c
dc.description.abstract

This study describes a one-pot sol-gel method for the synthesis of Ag/TiO2 nanocomposite powders. TEM images showed that the Ag clusters formed with this method are highly dispersed on the surface of TiO2 nanoparticles. UV/visible spectroscopy results indicated that [BMIM][PF 6], an imidazolium-based room-temperature ionic liquid, strongly inhibited the formation and growth of Ag clusters in N,N-dimethylformamide (DMF) solvent. This made it possible to prepare a stable stock solution containing AgNO3-[BMIM][PF6]-DMF. Dilution of the stock solution followed by hydrolysis resulted in a gel that was processed to produce Ag/TiO2 nanocomposites containing Ag clusters with average size smaller than 3 nm. XPS results indicated that the silver species exist predominantly in the metallic form. Because of the high dispersion and controlled size of the Ag clusters, the Ag/TiO2 nanocomposites demonstrated excellent catalytic performance in the aqueous phase reduction of methylene blue and the hydrogenation of 4-nitrophenol using NaBH4 as the reducing agent. © 2009 The Royal Society of Chemistry.

dc.publisherThe Royal Society of Chemistry
dc.titleIonic liquid-facilitated synthesis and catalytic activity of highly dispersed Ag nanoclusters supported on TiO2
dc.typeJournal Article
dcterms.source.volume19
dcterms.source.number43
dcterms.source.startPage8223
dcterms.source.endPage8231
dcterms.source.issn0959-9428
dcterms.source.titleJournal of Materials Chemistry
curtin.departmentDepartment of Chemical Engineering
curtin.accessStatusFulltext not available


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