nanotube (TNT) were modified by a silane coupling agent to make nano-Ru selectively deposit on the inner wall. The as prepared catalysts were characterized by transmission electron microscope (TEM)
high-resolution transmission electron microscopy (HREM)
energy dispersive spectrometer (EDS)
high-angle annular dark field image(HAADF)
scanning transmission electron microscopy (STEM) and UV-vis absorption spectra. The results confirm that nano-Ru particles in the range of 2~3 nm in diameter are entrapped in the TNTs. TNTs-confined 2% Ru exhibits the best photocatalytic performance
which photocatalytic efficient is 1-8 times of pure TNTs.