Abstract
Mesoporous Ag/TiO2 heterojunction films (Ag-MTHF) with enhanced photocatalytic activity were synthesized by a three-step approach including an electrochemical anodization technique followed by successive ionic layer adsorption and reaction (SILAR) and solvothermal methods. The distribution of Ag nanoparticles on the inner structure of the mesoporous TiO2 film was confirmed by field emission scanning electron (FE-SEM) and transmission electron microscopes (TEM). The formation progress of the novel mesoporous Ag/TiO2 nanojunction film with Ag average diameter of 17 nm was illuminated. The formed nanojunction between Ag and TiO2 nanoparticles largely enhanced the photocatalytic degradation of methyl orangey (MO), and the corresponding mechanism was proposed.
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