【作者】 刘沛； 崔新爱； 胡道道；

【Author】 Pei Liu,Xin-Ai Cui,Dao-Dao Hu~* School of Chemistry and Materials Science,Shaanxi Normal University,710062,Xi’an

【机构】 陕西师范大学化学与材料科学学院；

【摘要】 利用3-氯丙基三乙氧基硅烷对磁性纳米颗粒(MSN)进行表面修饰,再对其表面季铵化修饰QAS及磷钨酸(PTA)离子交换,制备得到一种核壳型的复合材料(MSN/12-QAS-PTA)。以催化过氧化氢氧化苯并噻吩脱硫为模型反应,考察所制材料在两相催化反应中的性能。结果表明:此复合材料具有较高的催化活性,且易分离,可回收多次利用。该材料对于构建两亲性负载型催化剂具有重要借鉴意义。更多还原

【Abstract】 A core-shell structural composite material was synthesized by covering magnetic silica nanoparticles with 3-chloropropyl triethoxysilane,then quatemized and exchanged phosphotungstic acid on the surface.The material was designed as amphiphilic catalyst to be used in deep desulfurization.The results indicated that the material possesses a high catalytic activity in the desulfurization.Additionally,the catalyst and product could be simultaneously separated and be recycled for several times.更多还原