Porous TiO2 Assembled from Monodispersed Nanoparticles.
Porous TiO2 were assembled by evaporating or refluxing TiO2 colloid, which was obtained by dispersing the TiO2 nanoparticles with a crystallite size (d XRD) of 3.2 nm into water or ethanol without any additives. Porous transparent bulk TiO2 was obtained by evaporating the TiO2-C2H5OH colloid at room temperature for 2 weeks, while porous TiO2 nanospheres were assembled by refluxing the TiO2-H2O colloid at 80 °C for 36 h. Both of the porous TiO2 architectures were pore-size-adjustable depending on the further treating temperature. Porous TiO2 nanospheres exhibited enhanced photocatalysis activity compared to the nanoparticles.
['Liu|Xu|X|', 'Duan|Weijie|W|', 'Chen|Yan|Y|', 'Jiao|Shihui|S|', 'Zhao|Yue|Y|', 'Kang|Yutang|Y|', 'Li|Lu|L|', 'Fang|Zhenxing|Z|', 'Xu|Wei|W|', 'Pang|Guangsheng|G|']
Porous TiO2 Assemblies TiO2 nanoparticles Photodegradation