They
became complete flowers until the length of time was as long
as 60 min. By fixing the length of time to be 60 min at different
microwave powers (Fig. 3), the as-synthesized products
with different morphologies were synthesized. At
100 W, the product was composed of a number of nanoparticles
clustered together in group. By increasing the refluxing
power of the microwave from 100 to 300, 600, and 800 W,
the nanoparticles gradually transformed into incomplete
flowers at 300 and 600W, and into complete flower-like
structure at 800 W. In this research, both powers of microwave
and lengths of time have the influence to determine the
product morphologies, including their crystalline degrees. A
SAED pattern [Fig. 2(f )] of nanostructured flowers was
diffuse and hollow, and was identified to correspond with
polynanocrystals of tetagonal CTS (JCPDS No. 33-0501).