POLYMORPHIC TRANSFORMATION OF TITANIUMDIOXIDECAUSED BY HEAT TREATMENT OF PROTONIC LEPIDOCROCITE TITANATE
ABSTRACT The polymorphic phases of titanium dioxide were successfully prepared by heat treatments of protonic lepidocrocite titanate, HO.5T4i1.86sOo.13.0s.054HzOat various temperatures. The prepared powders were characterized with EDX (Energy Dispersive X-ray), Scanning Electron M~croscopy(SEM), X-r...
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[Yogyakarta] : Universitas Gadjah Mada
2010
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id-ugm-repo.280712014-06-18T00:24:08Z https://repository.ugm.ac.id/28071/ POLYMORPHIC TRANSFORMATION OF TITANIUMDIOXIDECAUSED BY HEAT TREATMENT OF PROTONIC LEPIDOCROCITE TITANATE Perpustakaan UGM, i-lib Jurnal i-lib UGM ABSTRACT The polymorphic phases of titanium dioxide were successfully prepared by heat treatments of protonic lepidocrocite titanate, HO.5T4i1.86sOo.13.0s.054HzOat various temperatures. The prepared powders were characterized with EDX (Energy Dispersive X-ray), Scanning Electron M~croscopy(SEM), X-rays Diffractometer (XRD), Raman Spectroscopy, and High Resolution Transmission Electron Microscopy (HRTEM). The effect of calcination temperature on the phase structure and morphology of the heated samples was investigated. The research indicated that the protonic titanate, Ho.54Ti1.86sOo.13504'0.5(0Hz=Ovacancy), lost the inter/ayer water by being heated up to 200°C toproducea dehydratedphase,HO.54Th~o. 13S04.Above 300°C, the dehydrated phase, Ho.54Ti1.86500.1350", completely transformed to TiOz(B)and anatase was obtained as pure phase at 600°C. The phase transformed as the following process: HO.54Th86s00. 13504'0. 5HzO -+ HO.54Ti1. 86sOo.13504'0.25Hz -+ HO.54Ti1.86s00.13S04-+ TiOz(B) -+ TiO [Yogyakarta] : Universitas Gadjah Mada 2010 Article NonPeerReviewed Perpustakaan UGM, i-lib (2010) POLYMORPHIC TRANSFORMATION OF TITANIUMDIOXIDECAUSED BY HEAT TREATMENT OF PROTONIC LEPIDOCROCITE TITANATE. Jurnal i-lib UGM. http://i-lib.ugm.ac.id/jurnal/download.php?dataId=11134 |
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ABSTRACT
The polymorphic phases of titanium dioxide were successfully prepared by heat treatments of protonic
lepidocrocite titanate, HO.5T4i1.86sOo.13.0s.054HzOat various temperatures. The prepared powders were characterized
with EDX (Energy Dispersive X-ray), Scanning Electron M~croscopy(SEM), X-rays Diffractometer (XRD), Raman
Spectroscopy, and High Resolution Transmission Electron Microscopy (HRTEM). The effect of calcination
temperature on the phase structure and morphology of the heated samples was investigated. The research indicated that the protonic titanate, Ho.54Ti1.86sOo.13504'0.5(0Hz=Ovacancy), lost the inter/ayer water by being heated up to
200°C toproducea dehydratedphase,HO.54Th~o. 13S04.Above 300°C, the dehydrated phase, Ho.54Ti1.86500.1350", completely transformed to TiOz(B)and anatase was obtained as pure phase at 600°C. The phase transformed as the following process: HO.54Th86s00. 13504'0. 5HzO -+ HO.54Ti1. 86sOo.13504'0.25Hz -+ HO.54Ti1.86s00.13S04-+ TiOz(B) -+ TiO |
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Article NonPeerReviewed |
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Perpustakaan UGM, i-lib |
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Perpustakaan UGM, i-lib |
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Perpustakaan UGM, i-lib |
title |
POLYMORPHIC TRANSFORMATION OF TITANIUMDIOXIDECAUSED BY HEAT TREATMENT OF PROTONIC LEPIDOCROCITE TITANATE |
title_short |
POLYMORPHIC TRANSFORMATION OF TITANIUMDIOXIDECAUSED BY HEAT TREATMENT OF PROTONIC LEPIDOCROCITE TITANATE |
title_full |
POLYMORPHIC TRANSFORMATION OF TITANIUMDIOXIDECAUSED BY HEAT TREATMENT OF PROTONIC LEPIDOCROCITE TITANATE |
title_fullStr |
POLYMORPHIC TRANSFORMATION OF TITANIUMDIOXIDECAUSED BY HEAT TREATMENT OF PROTONIC LEPIDOCROCITE TITANATE |
title_full_unstemmed |
POLYMORPHIC TRANSFORMATION OF TITANIUMDIOXIDECAUSED BY HEAT TREATMENT OF PROTONIC LEPIDOCROCITE TITANATE |
title_sort |
polymorphic transformation of titaniumdioxidecaused by heat treatment of protonic lepidocrocite titanate |
publisher |
[Yogyakarta] : Universitas Gadjah Mada |
publishDate |
2010 |
url |
https://repository.ugm.ac.id/28071/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=11134 |
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1681219078780354560 |