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Preparation of Unique TiO2 Nano-particle Photocatalysts by a Multi-gelation Method for Control of the Physicochemical Parameters and Reactivity

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A novel multi-gelation method to prepare TiO2 nano-particle photocatalysts showed good performance in controlling the important parameters determining the photocatalytic reactivity, i.e., the particle size, surface area, crystallinity, pore-volume, pore-diameter as well as the anatase and rutile phase composition of the catalysts. In particular, this method at higher pH swing times could prevent the phase transition from anatase to rutile, leading to higher photocatalytic activity. By adopting variations in the pH swing, the TiO2 nano-particle photocatalysts showed significantly higher photocatalytic reactivity for the complete oxidation of 2-propanol diluted with water into CO2 and H2O. It can be considered a viable alternative method for the preparation of high performance TiO2 nano-particle photocatalysts for widespread commercial applications.

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Correspondence to Masakazu Anpo.

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Neppolian, B., Yamashita, H., Okada, Y. et al. Preparation of Unique TiO2 Nano-particle Photocatalysts by a Multi-gelation Method for Control of the Physicochemical Parameters and Reactivity. Catal Lett 105, 111–117 (2005). https://doi.org/10.1007/s10562-005-8013-1

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  • DOI: https://doi.org/10.1007/s10562-005-8013-1

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