磁性聚丙烯酰胺复合微球的制备及其催化性质的研究

In this paper, the magnetic polyacrylamide microspheres composited of Fe3O4 nanoparticles and cellulase were one-step synthesized by suspension polymerization, and the cyclic catalytic properties of the composite microspheres for catalytic hydrolysis of sodium carboxymethyl cellulose (CMC) were also been studied. The results showed that the composite microspheres have a rapid magnetic response property with a saturation magnetization of 15 emu/g, and importantly, the cellulase immobilized by the magnetic polyacrylamide microspheres still presented a definite catalytic activity even after been used eight times.