Abstract:

Silica nanotubes with high yield，uniform size and large aspect ratio were synthesized from hydrodyzing tetraethyl orthosilicate（TEOS）using ammonium D，L-tartrate as templateThe prepared products were characterized with transmission electron microscopy（TEM），scanning electron microscopy（SEM），energy dispersive Xray analysis（EDX）and powder X-ray diffraction（XRD）The formation mechanism of the silica nanotubes and the influence of synthesis conditions on the formation of the silica nanotubes were investigatedThe results revealed that the morphology and yield of the silica nanotubes were sensitive to TEOS addition speed，aging time after TEOS addition and ammonia concentration，but not sensitive to reaction temperature.