Preparation of Zirconium Phosphate Nanoparticles and Its Application in the Protection of Aldehydes | ||
| Journal of Sciences, Islamic Republic of Iran | ||
| مقاله 2، دوره 28، شماره 4، 2017، صفحه 313-323 اصل مقاله (436.21 K) | ||
| نوع مقاله: Final File | ||
| نویسنده | ||
| H. Karimi | ||
| Young Researchers and Elite Club, Shahreza Branch, university of Islamic Azad, Shahreza, Islamic Republic of Iran | ||
| چکیده | ||
| 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. | ||
| کلیدواژهها | ||
| Hexagonal zirconium phosphate؛ nanoparticles؛ Solvent-free؛ Solid acid catalyst؛ Diacetate | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 977 تعداد دریافت فایل اصل مقاله: 1,570 |
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