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dc.contributor.authorManu Jose-
dc.contributor.authorMahitha, K-
dc.contributor.authorRemya, K-
dc.contributor.authorShukla, S-
dc.date.accessioned2015-02-23T09:04:32Z-
dc.date.available2015-02-23T09:04:32Z-
dc.date.issued2015-
dc.identifier.citationJournal of Sol-Gel Science and Technology 73(1):38-47;Jan 2015en_US
dc.identifier.issn0928-0707-
dc.identifier.urihttp://ir.niist.res.in:8080/jspui/handle/123456789/1796-
dc.description.abstractHighly crystalline nanotubes/nanoplates of pure and Ag-doped anatase-titania (TiO2) having high aspect-ratio have been synthesized, without the involvement of thermal treatment, via the hydrothermal method using the acetic-acidmodified sol–gel processed nanocrystalline pure and Agdoped anatase-TiO2 as precursors. The samples have been characterized for analyzing their morphology, structure, specific surface-area, and surface-chemistry using the transmission electron microscope, selected-area electron diffraction (SAED), X-ray diffraction, Brunauer–Emmett–Teller specific surface-area measurement, and Fourier transform infrared techniques. It has been observed that the hydrothermal treatment of acid-catyalyst-modified pure and Ag doped nanocrystalline anatase-TiO2 precursors and the subsequent washing of hydrothermal products result in the formation of nanotubes/nanoplates of pure and Ag-doped anatase-TiO2 instead of those of hydrogen titanate which is invariably obtained with the use of unmodified precursors. It has been proposed that the formation of nanotubes/nanoplates of pure and Ag-doped anatase-TiO2 via the hydrothermal method without the involvement of thermal treatment, under the given processing conditions, is due to the operation of double ion-exchange mechanism which is in contrast to that of conventional single ion-exchange mechanism responsible for the formation of nanotubes of hydrogen titanate. The operation of as-proposed double ion-exchange mechanism has been strongly supported by the experimentally observed variation in the solution-pH involved during the washing treatment of hydrothermal product.en_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.subjectSol–gelen_US
dc.subjectAcid-catalysten_US
dc.subjectIon-exchangeen_US
dc.subjectNanocrystallineen_US
dc.subjectTitaniaen_US
dc.titleHydrothermal synthesis of highly crystalline nanotubes/nanoplates of pure and silver-doped anatase-titania using acid-catalyst-modified sol–gel precursorsen_US
dc.typeArticleen_US
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