Research Article
Controllable Architecture of Mesoporous Double-Nanoshell SiO2/TiO2 Hollow Tube Based on Layer by Layer Method
Figure 2
(a) FE-SEM images of SiO2 hollow tube and (b) high resolution of hollow tube. (c) FE-TEM image of the hollow tube, and (d) FE-TEM image of the interface of hollow tube.
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