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Facile hydrothermal synthesis and optical limiting properties of TiO 2 -reduced graphene oxide nanocomposites

Wang, Aijian; Yu, Wang; Fang, Yu; Song, Yinglin; Jia, Ding; Long, Lingliang; Cifuentes, Marie; Zhang, Chi; Humphrey, Mark; Zhang, Chi

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TiO<inf>2</inf>/reduced graphene oxide (RGO) nanocomposites Gx (RGO titania nanocomposite, x grams tetrabutyl titanate per 0.03 g RGO, x = 0.25, 0.50, 1.00) were prepared by a hydrothermal method: graphene oxide was reduced to RGO in a 2:1 water:ethanol mixture in the presence of varying quantities of tetrabutyl titanate, which deposited as TiO<inf>2</inf> on the RGO sheets. The nanocomposites were characterized by a combination of Fourier transform infrared spectroscopy, diffuse reflectance...[Show more]

dc.contributor.authorWang, Aijian
dc.contributor.authorYu, Wang
dc.contributor.authorFang, Yu
dc.contributor.authorSong, Yinglin
dc.contributor.authorJia, Ding
dc.contributor.authorLong, Lingliang
dc.contributor.authorCifuentes, Marie
dc.contributor.authorZhang, Chi
dc.contributor.authorHumphrey, Mark
dc.contributor.authorZhang, Chi
dc.date.accessioned2015-12-10T23:24:54Z
dc.identifier.issn0008-6223
dc.identifier.urihttp://hdl.handle.net/1885/67401
dc.description.abstractTiO<inf>2</inf>/reduced graphene oxide (RGO) nanocomposites Gx (RGO titania nanocomposite, x grams tetrabutyl titanate per 0.03 g RGO, x = 0.25, 0.50, 1.00) were prepared by a hydrothermal method: graphene oxide was reduced to RGO in a 2:1 water:ethanol mixture in the presence of varying quantities of tetrabutyl titanate, which deposited as TiO<inf>2</inf> on the RGO sheets. The nanocomposites were characterized by a combination of Fourier transform infrared spectroscopy, diffuse reflectance ultraviolet-visible spectroscopy, photoluminescence spectroscopy, Raman spectroscopy, X-ray powder diffraction, X-ray photoelectron spectroscopy and transmission electron microscopy studies. The nanocomposite G0.25 exhibits enhanced nonlinear optical properties compared to its individual components, which is ascribed to a combination of mechanisms. The role of defects and electron/energy transfer in the optical limiting performance of G0.25 was clarified with the help of Raman and photoluminescence spectroscopies. Intensity-dependent switching between reverse saturable absorption and saturable absorption behavior was observed with the G0.50 nanocomposite.
dc.publisherPergamon-Elsevier Ltd
dc.rightsCopyright Information: © 2015 Elsevier Ltd
dc.sourceCarbon
dc.titleFacile hydrothermal synthesis and optical limiting properties of TiO 2 -reduced graphene oxide nanocomposites
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume89
dc.date.issued2015
local.identifier.absfor039904 - Organometallic Chemistry
local.identifier.ariespublicationa383154xPUB1450
local.type.statusPublished Version
local.contributor.affiliationWang, Aijian, Jiangnan University
local.contributor.affiliationYu, Wang, Jiangsu University
local.contributor.affiliationFang, Yu, Soochow University
local.contributor.affiliationSong, Yinglin, Soochow University
local.contributor.affiliationJia, Ding, Jiangsu University
local.contributor.affiliationLong, Lingliang, Jiangsu University
local.contributor.affiliationCifuentes, Marie, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationHumphrey, Mark, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationZhang, Chi, College of Physical and Mathematical Sciences, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.startpage130
local.bibliographicCitation.lastpage141
local.identifier.doi10.1016/j.carbon.2015.03.037
local.identifier.absseo970103 - Expanding Knowledge in the Chemical Sciences
dc.date.updated2016-02-24T08:05:10Z
local.identifier.scopusID2-s2.0-84927921884
CollectionsANU Research Publications

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