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Titania/mesoporous silica nanotubes with efficient photocatalytic properties

Cendrowski K.

Polish Journal of Chemical Technology

2018

Vol. 20, nr 1

103--108

Ordered nanocrystalline titania-mesoporous silica nanotube structures are synthesized by hydrolysis of the titania precursor inside pours silica shell. Silica coating surrounding carbon nanotubes was further removed by thermal reduction. The proposed method of functionalization silica channels with the titania nanoparticles preclude aggregation of TiO2 nanoparticles. The nanocrystalline silica/titania (mt-SiO2 /TiO2 ) nanotubes were prepared according to the describe method has high specific surface area and possesses excellent photocatalytic properties capable of decomposing phenol and methylene blue in a short time. Since the nanocrystalline TiO2 is produced in the wall of the mesoporous silica tube, phenol or dye molecules can react with TiO2 nanoparticles from both the inside and outside.