H. Fujii et al., Synthesis of TiO2/CdS nanocomposite via TiO2 coating on CdS nanoparticles by compartmentalized hydrolysis of Ti alkoxide, J MATER SCI, 36(2), 2001, pp. 527-532
Hydrolysis of Ti alkoxide in the presence of inverse micelles containing Cd
S nanoparticles in their hydrophilic interior results in formation of TiO2/
CdS nanocomposites in which the CdS nanoparticles are embedded in a TiO2 ma
trix with a thickness of less than or equal to 10 nm at the surface of the
particles. The primary hydroxyl groups introduced by 2-mercaptoethanol as a
capping agent used for preparation of the CdS nanoparticles are considered
to play an important role for successful adhesion and growth of the TiO2 l
ayer on the CdS surfaces. TEM observation strongly supports formation of se
miconductor-in-semiconductor heteronanostructure by compartmentalized hydro
lysis of Ti alkoxide within the inverse micelles in which the surface-cappe
d CdS nanoparticles coexist. (C) 2001 Kluwer Academic Publishers.