文章利用(3-氨丙基)三乙氧基硅烷(APTES)对Fe3O4纳米粒子进行表面改性,制备了有机硅表面修饰的的Fe3O4纳米粒子(APTES-MNPs)。研究了APTES—MNPs对刚果红的吸附情况。APTES—MNPs对刚果红染料的吸附符合Langmuir等温吸附模型。吸附过程为自发的并且为吸热过程。
In the paper, we used 3-aminopropyltriethoxysilane (APTES) to modify the surface of Fe3O4 and prepared the Fe3O4 magnetite nanoparticles with organosilane surface modifacation(APTES-MNPs). The study researched the adsorption of congo red on APTES-MNPs. The adsorption of congo red on APTES-MNPs well-described by Langmuir isotherm model. The adsorption process is spontaneous and endothermic in nature.