VSM. According to SEM pictures, the nanoparticles are mostly spherical in shape, and their size is approximately 46 nm. The catalytic performance of these magnetic nanoparticles for the synthesis of bis(indolyl)methanes was investigated. The catalyst was readily recycled by the use of an external magnetic field and can be reused four times without significant loss of activity. Graphical Abstract
摘要 制备了共价固定在
二氧化硅包覆的磁性纳米粒子上的
六亚甲基四胺,并通过XRD,FT-IR,
SEM和VSM对其进行了表征。根据
SEM图片,纳米粒子的形状大多为球形,其大小约为46 nm。研究了这些磁性纳米粒子对双(
吲哚基)
甲烷合成的催化性能。该催化剂可通过使用外部磁场而容易地再循环,并且可以重复使用四次而不会显着降低活性。 图形概要