Mesostructural control of non-silica-based hybrid mesoporous film composed of aluminium ethylenediphosphonate using triblock copolymer and their TEM observation

Abstract

A mixed solution of ethanol and water containing EO₈₀PO₃₀EO₈₀ was combined with a solution prepared by the reaction between (HO)₂OPC₂H₄O(OH)₂ and AlCl₃ in ethanol–water in order to obtain clear precursor solutions for the synthesis of ordered mesoporous aluminium organophosphonate (AOP) films with high transparency. The amount of EO₈₀PO₃₀EO₈₀ in the precursor solution strongly influenced the mesostructural ordering of the AOP films, which was mainly investigated through TEM observations. Ordered mesoporous AOP films can be obtained and their high porosity was proved by direct N₂ adsorption–desorption measurement. High adsorption capacity of acetaldehyde molecules over such films was also confirmed.