T. Yamaki et K. Asai, Alternate multilayer deposition from ammonium amphiphiles and titanium dioxide crystalline nanosheets using the Langmuir-Blodgett technique, LANGMUIR, 17(9), 2001, pp. 2564-2567
A new type of TiO2 nanosheet-organic complex multilayer film was successful
ly prepared by the Langmuir-Blodgett technique. Surface pressure-area (pi -
A) curves demonstrated that a stable monolayer of dioctadecyldimethylammoni
um bromide (DODAB) was formed on an aqueous suspension of TiO2 nanosheets d
erived from an exfoliated layered titanate, HxTi2-(x/4)square O-x/4(4).H2O
(x similar to 0.7; square, vacancy). The hybrid monolayer of the ammonium a
mphiphiles and the TiO2 nanosheet was quantitatively transferred onto a hyd
rophobic quartz plate to form a multilayer film. X-ray diffraction measurem
ents confirmed the formation of an ordered structure of DODAB/TiO2 with an
interlayer distance of 3.4 nm.