Ag-loaded TiO2 nanotube covered by a pH-sensitive membrane were prepared by coating a silane coupling agent KH550 accompanied with a two-step photo-grafting and anodization, and its physiochemical properties were characterized by means of SEM, TEM, EDS and AES. Also, the antibacterial activities of these samples were accessed by inhibition zone and inhibition rate. The results suggest that, the solution containing Ag ions enters into the interior of Ti)2 nantubes under the interactions of capillary force, and the release behavior of Ag ions is regulated and controlled by the pH-sensitive polymer membrane at different pH environment. Also, it is found that the antibacterial ratio of Ag-carried nanotubes is proportional to the carrying content of Ag ions.
|Journal||CHINESE JOURNAL OF INORGANIC CHEMISTRY|
|Publication status||Published - Jun 2014|