preparation and characterization of magnetic acidic boehmite nanoparticles as a heterogeneous catalyst, which is called Fe3O4@BNPs@SiO2–SO3H. This catalyst works efficiently in the selective oxidation of sulfides to sulfoxides or sulfones in the presence of H2O2 as a green oxidant. It can easily be separated from the reaction medium by using an external magnet and it was recycled 6 times without loss
为了实现绿色
化学目标,降低催化剂成本,避免产生有毒废物,并展示从反应介质中分离和回收催化剂的重要性,在这项工作中,我们描述了磁性酸性勃姆石的制备和表征纳米颗粒作为非均相催化剂,称为 Fe 3 O 4 @
BNPs@SiO 2 –SO 3 H。这种催化剂在作为绿色氧化剂的 H 2 O 2存在下有效地将
硫化物选择性氧化为亚砜或砜。它可以很容易地通过使用外部磁
铁从反应介质中分离出来,并且可以循环使用 6 次而不会损失磁催化性能。