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Ti0_2 nanoparticles were synthesized by self-hydrolysis of TiOCl_2 and the crystalline phase and morphology were controlled by addition of HCI. Wnen O.1M TiOCl_2 was heated at 100℃ for 24h, the XRD pe...aks of anatase were detected on the precipitate. By addition of 4M HCI, the XRD peaks of anatase disappeared and brookite and rutile were detected. These results suggest that addition of HCI promotes dissolution- reprecipitation reaction and leads to brookite and rutile formation.続きを見る
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