Improving Photocatalytic Degradation Activity of Organic Pollutant by Sn⁴⁺ Doping of Anatase TiO₂ Hierarchical Nanospheres with Dominant {001} Facets.

ABSTRACT: Herein, high-energy {001} facets and Sn⁴⁺ doping have been demonstrated to be effective strategies to improve the surface characteristics, photon absorption, and charge transport of TiO₂ hierarchical nanospheres, thereby improving their photocatalytic performance. The TiO₂ hierarchical nanospheres under different reaction times were prepared by solvothermal method. The TiO₂ hierarchical nanospheres (24 h) expose the largest area of {001} facets, which is conducive to increase the density of surface active sites to degrade the adsorbed methylene blue (MB), enhance light scattering ability to absorb more incident photons, and finally, improve photocatalytic activity. Furthermore, the Sn_xTi_1-xO₂ (STO) h

SUBMITTER: Sun M 

PROVIDER: S-EPMC6915639 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature