可磁性回收納米級負(fù)載型雜多酸催化劑用于水中生物活性化合物的綠色合成(英文)

編號：NMJS03880

篇名：可磁性回收納米級負(fù)載型雜多酸催化劑用于水中生物活性化合物的綠色合成(英文)

作者：Ezzat Rafiee； Sara Eavani； Maryam Khodayari

關(guān)鍵詞：Core‐shell particle Magnetically recoverable catalyst Heteropoly acid Xanthene Hydroacridine

機構(gòu)： Faculty of Chemistry,Razi University,Kermanshah,67149,Iran

摘要： 12‐Tungstophosphoric acid supported on aerosil silica and silica‐coated γ‐Fe2O3 nanoparticles was prepared and characterized using transmission electron microscopy,scanning electron microscopy,and inductively coupled plasma atomic emission spectroscopy.The catalytic activity of the two prepared catalysts was compared in the synthesis of 1,8‐dioxo‐9,10‐diaryldecahydroacridines in water.12‐Tungstophosphoric acid was highly dispersed on the silica‐coated γ‐Fe2O3 nanoparticles and showed higher activity and a higher reuse number compared with the acid supported on aerosil silica.The catalyst could be recovered simply by using an external magnetic field and could be reused several times without appreciable loss of its catalytic activity.