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Report No.

Alternate multilayer deposition from ammonium amphiphiles and titanium dioxide crystalline nanosheets using the Langmuir-Blodgett technique

Yamaki, Tetsuya; Asai, Keisuke*

A new type of TiO$$_{2}$$ nanosheet-organic complex multilayer film was successfully prepared by the Langmuir-Blodgett technique. Surface pressure-area curves demonstrated that a stable monolayer of dioctadecyldimethylammonium bromide (DODAB) was formed on an aqueous suspension of TiO$$_{2}$$ nanosheets derived from an exfoliated layered titanate, H$$_{x}$$Ti$$_{2-x/4}$$$$_{x/4}$$O$$_{4}$$・H$$_{2}$$O (x$$sim$$0.7; □, vacancy). The hybrid monolayer of the ammonium amphiphiles and the TiO$$_{2}$$ nanosheet was quantitatively transferred onto a hydrophobic quartz plate to form a multilayer film. X-ray diffraction measurements confirmed the formation of an ordered structure of DODAB/TiO$$_{2}$$ with an interlayer distance of 3.4 nm.



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Category:Chemistry, Multidisciplinary



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