Controlled synthesis of brookite and combined brookite with rutile phases of titanium di-oxide and its characterization studies
Source abstract
Abstract
Abstract Experimental conditions for the sol-gel synthesis of TiO 2 were modified by using Polyethylene glycol (PEG) as well as an addition of acid catalyst. Synthesis of brookite and mixed brookite with rutile was obtained. X-ray powder diffraction and Micro Raman measurements confirmed the crystallization of brookite while using pure PEG 4000 with low molar acid concentration and a mixed brookite with rutile phase for PEG 4000 with high molar acid concentration. High Resolution Transmission Electron Microscopic analysis revealed the presence of nanocrystalline assembly with sizes between 8 and 16 nm. Direct phase transition from brookite to rutile phase was observed during the further heat treatment of brookite sample.
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Research context
OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Advanced Photocatalysis Techniques · Pigment Synthesis and Properties
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