Synthesis and application of Fe3O4/SiO2/thermosensitive/PAMAM-CS nanoparticles as a novel adsorbent for removal of tamoxifen from water samples

摘要

In this research, Fe3O4/SiO2 nanoparticles with core-shell morphology were fabricated through co-precipitation method and used in a new method for the preparation of poly (amidoamine) (PAMAM)-magnetite nanoparticles; Then their use in the immobilization of chitosan (Fe3O4/SiO2/Thermosensitive/PAMAM-CS nanoparticles) was investigated. In so doing, Fe3O4/SiO2/Thermosensitive/PAMAM-CS nanoparticles characterized by X-ray diffraction (XRD) spectroscopy, scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), dynamic light scattering (DLS), vibrating sample magnetometry (VSM) and zeta potential analysis. The prepared Fe3O4/SiO2/Thermosensitive/PAMAM-CS nanoparticles used as an adsorbent for the removal of tamoxifen from aqueous solutions. The effects of adsorption process parameters such as pH, contact time, adsorbent dosage, temperature, and initial tamoxifen concentration also investigated. Moreover, the adsorption of tamoxifen studied from both kinetics and equilibrium points of view. Based on the results, the maximum adsorption capacities of tamoxifen on Fe3O4/SiO2/Thermosensitive/PAMAM-CS nanoparticles were found to be 20.5 mg g(-1).