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One-step synthesis of hierarchically porous hybrid TiO2 hollow spheres with high photocatalytic activity

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Abstract

Hierarchically porous hybrid TiO2 hollow spheres were solvothermally synthesized successfully by using tetrabutyl titanate as titanium precursor and hydrated metal sulfates as soft templates. The as-prepared TiO2 spheres with hierarchically pore structures and high specific surface area and pore volume consisted of highly crystallized anatase TiO2 nanocrystals hybridized with a small amount of metal oxide from the hydrated sulfate. The proposed hydrated-sulfate assisted solvothermal (HAS) synthesis strategy was demonstrated to be widely applicable to various systems. Evaluation of the hybrid TiO2 hollow spheres for the photo-decomposition of methyl orange (MO) under visible-light irradiation revealed that they exhibited excellent photocatalytic activity and durability.

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Correspondence to Ruiping Liu.

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Liu, R., Ren, F., Yang, J. et al. One-step synthesis of hierarchically porous hybrid TiO2 hollow spheres with high photocatalytic activity. Front. Mater. Sci. 10, 15–22 (2016). https://doi.org/10.1007/s11706-016-0323-2

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  • DOI: https://doi.org/10.1007/s11706-016-0323-2

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