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Title

High-yield preparation of titanium dioxide nanostructures by hydrothermal conditions

AuthorsVasquez, Juan; Lira-Cantú, Mónica ; Gómez-Romero, P. ; Santa Ana, María Angélica; Benavente, Eglantina; González, Guillermo
KeywordsTiO2-Based nanostructures
Hydrothermal treatment
Neutral surfactant
Issue DateFeb-2009
PublisherAmerican Scientific Publishers
CitationJournal of Nanoscience and Nanotechnology 9(2): 1103-1107 (2009)
AbstractThe effect of the neutral surfactant dodecylamine and octadecylamine on the synthesis of TiO2-based nanostructures by the treatment of anatase with NaOH under hydrothermal conditions in the temperature range 120-150 °C and different reaction times was investigated. The products analyzed by electron microscopy, X-ray diffraction, FT-IR and elemental analysis contains—depending of the amine, the temperature and the duration of the hydrothermal treatment—spherical and tubular species containing the acid H2Ti3O7. The formation of morphologically almost pure phases constituted by nanospheres and nanotubes were obtained at 130 °C after about 30 and 50 h respectively. Using dodecylamine, structurally fragile tubular amine containing nanocomposites are obtained, while in the case of the octadecylamine, notoriously stable purely inorganic nanotubes are formed. The role of the amine in these reactions is discussed.
Publisher version (URL)http://dx.doi.org/10.1166/jnn.2009.C097
URIhttp://hdl.handle.net/10261/15618
DOI10.1166/jnn.2009.C097
ISSN1533-4880
Appears in Collections:(CIN2) Artículos
(ICMAB) Artículos
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