Cs2.5H0.5PW12O40 Nanoparticles Fixed on Silica Encapsulating Magnetic Iron Oxide as a Magnetically Separable Water-tolerant Solid Acid

Cs2.5H0.5PW12O40 fixed on silica encapsulating iron oxide nanoparticles through (3-aminopropyl)triethoxysilane could magnetically be separated from an aqueous solution. The catalyst showed activity for the hydrolysis of ethyl acetate in the presence of excess water and was reusable without significant loss of its inherent activity.