TY - JOUR ID - 62928 TI - Preparation of Zirconium Phosphate Nanoparticles and Its Application in the Protection of Aldehydes JO - Journal of Sciences, Islamic Republic of Iran JA - JSCIENCES LA - en SN - 1016-1104 AU - Karimi, H. AD - Young Researchers and Elite Club, Shahreza Branch, university of Islamic Azad, Shahreza, Islamic Republic of Iran Y1 - 2017 PY - 2017 VL - 28 IS - 4 SP - 313 EP - 323 KW - Hexagonal zirconium phosphate KW - nanoparticles KW - Solvent-free KW - Solid acid catalyst KW - Diacetate DO - N2 - 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. UR - https://jsciences.ut.ac.ir/article_62928.html L1 - https://jsciences.ut.ac.ir/article_62928_5ad0693fa3c982abc2dcfb4a1c14f9f5.pdf ER -