University of Tehran Journal of Sciences, Islamic Republic of Iran 1016-1104 28 4 2017 10 01 Preparation of Zirconium Phosphate Nanoparticles and Its Application in the Protection of Aldehydes 313 323 62928 EN H. Karimi Young Researchers and Elite Club, Shahreza Branch, university of Islamic Azad, Shahreza, Islamic Republic of Iran Journal Article 2016 07 04 <span>A novel method for the preparation of α-zirconium phosphate (ZrP) nanoparticles as an eco-friendly and recyclable heterogeneous catalyst was studied. Polyethylene glycol (PEG) was used as the organic matrix which produced a better dispersion of ZrP nanoparticles. The catalyst was characterized by several physico-chemical techniques such as ICP-OES, XRD, TPD-NH₃, pyridine-FTIR, BET, FTIR, TGA, SEM and TEM. The acidic property of ZrP was studied in the protection of aldehydes with acetic anhydride (AA) in the at room temperature. The deprotection of 1,1-diacetates has also been achieved using this catalyst in water. The procedure is operationally simple, environmentally benign and only a stoichiometric amount of AA is used. The catalyst was recovered easily from the reaction mixture, regenerated, and reused at least eight times without significant loss in catalytic activity.</span> https://jsciences.ut.ac.ir/article_62928_5ad0693fa3c982abc2dcfb4a1c14f9f5.pdf