Physical-Chemical Exfoliation of Alkylamine Derivatives of Layered Perovskite-like Oxide HKBiTiO into Nanosheets.

In the present work, we report the results on exfoliation and coating formation of inorganic-organic hybrids based on the layered perovskite-like bismuth titanate HKBiTiO·HO that could be prepared by a simple ion exchange reaction from a Ruddlesden-Popper phase KBiTiO. The inorganic-organic hybrids were synthesized by intercalation reactions. Exfoliation into nanosheets was performed for the starting hydrated protonated titanate and for the derivatives intercalated by alkylamines to study the influence of preliminary intercalation on exfoliation efficiency.

Synthesis of Organic-Inorganic Hybrids Based on Perovskite-like Bismuth Titanate HKBiTiO·HO and -Alkylamines.

New organic-inorganic hybrids have been synthesized by the intercalation of -alkylamines (methylamine, ethylamine, -propylamine, -butylamine, -hexylamine, and -octylamine) into the structure of the protonated and hydrated form of the perovskite-like layered titanate HKBiTiO·HO (HKBT·HO). The possibility of the synthesis of the hybrid materials was studied in a wide range of conditions. It was found that interlayer water plays a crucial role in the formation of intercalated hybrids.