In Situ X-ray Absorption Near Edge Structure Study of Amorphous-TiO2 Phase Transformation

Journal article

Authors/Editors

Strategic Research Themes

Publication Details

Author list: Poo-Arporn Y, Palangsuntikul R

Publisher: American Scientific Publishers

Publication year: 2016

Journal: Journal of Nanoscience and Nanotechnology (1533-4880)

Volume number: 16

Issue number: 6

Start page: 6551

End page: 6554

Number of pages: 4

ISSN: 1533-4880

eISSN: 1533-4899

URL: https://www.scopus.com/record/display.uri?eid=2-s2.0-84975138833&origin=resultslist&sort=plf-f&src=s&st1=In+Situ+X-ray+Absorption+Near+Edge+Structure+Study+of+Amorphous-TiO2+Phase+Transformation&sid=291c6f904f97de7ff75b95c9e74cd0c7&sot=b&sdt=b&sl=104&s=TITLE-ABS-KEY%28In+Situ+X-ray+Absorption+Near+Edge+Structure+Study+of+Amorphous-TiO2+Phase+Transformation%29&relpos=1&citeCnt=1&searchTerm=

Languages: English-Great Britain (EN-GB)

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Abstract

The in situ X-ray absorption near edge structure (XANES) measurement and linear combination fitting were applied to monitor phase transformation of titanium dioxide. In this study, TiO2 (TiSG) was prepared by a sol-gel method using titanium isopropoxide as a precursor. At low preparation temperature, the results revealed the formation of an amorphous structure. To obtain the anatase phase, the calcination at 843 K was necessary. Using phase fraction plot, TiO2 phase-transition can be observed at temperatures between 748 and 778 K and remain unchanged at 873 K.

Keywords

In Situ XANES, Phase Transformation, Sol Gel, TiO2