Show simple item record

dc.creatorSimović, B.
dc.creatorDapčević, Aleksandra
dc.creatorZdravković, J.
dc.creatorTasić, N.
dc.creatorKovač, S.
dc.creatorKrstić, Jugoslav
dc.creatorBranković, Goran
dc.date.accessioned2019-01-30T18:01:46Z
dc.date.available2019-01-30T18:01:46Z
dc.date.issued2019
dc.identifier.issn0925-8388
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/2495
dc.description.abstractIn this work, nine products were prepared by modifying the experimental conditions (6, 12 and 18 h at 110, 135 and 160 °C) of hydrothermal treatment of starting nanoanatase in significantly less concentrated alkaline medium than usual in order to obtain a pure titanate phase. The nanocrystalline samples were characterized by XRPD, FESEM, HRTEM/SAED, EDS, TG, FT-IR, UV-Vis and BET analyses. The results revealed that the structure, texture, morphology and band gap energy of samples strongly depend on conditions of hydrothermal treatment. The intensification of hydrothermal treatment significantly increases the solubility of TiO2 promoting the changes in morphology from nearly spherical titania nanoparticles to elongated titanate nanosheets. The single titanate phase was obtained after energetically the most intensive treatment, i.e. 18 h at 160 °C. The step-by-step optimization was thus necessary to finally distinguish the titanates from titania in terms of structural and spectral properties and to finally allow the clarification of long-standing confusion between titania and titanates. The obtained single titanate phase was furtherly used to fabricate a humidity sensor, which showed remarkably rapid response and quick recovery time.en
dc.publisherElsevier Ltd
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45007/RS//
dc.rightsrestrictedAccess
dc.sourceJournal of Alloys and Compounds
dc.subjectHumidity sensoren
dc.subjectHydrothermal treatmenten
dc.subjectNanoparticlesen
dc.subjectNanosheetsen
dc.subjectTitanateen
dc.subjectTitaniaen
dc.titleFrom titania to titanates: Phase and morphological transition in less alkaline medium under mild conditionsen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractСимовић, Б.; Дапчевић, A.; Крстић, Југослав; Тасић, Н.; Ковач, С.; Бранковић, Г.; Здравковић, Ј.;
dc.citation.spage810
dc.citation.epage819
dc.citation.other: 810-819
dc.citation.rankaM21~
dc.identifier.doi10.1016/j.jallcom.2018.12.039
dc.identifier.rcubConv_4489
dc.identifier.scopus2-s2.0-85058412272
dc.identifier.wos000457845900095
dc.type.versionpublishedVersion


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record