Facile fabrication of polymer-based Fe3O4/HAp/PAA/PAM nanohybrid and it’s application for removal of dye

The controlled synthesis of hybrids nanoparticles (NPs) and polymer have received significant attention for application in environment. In the paper, green and multifunctional polymer-based Fe 3 O 4 /hydroxyapatite (HAp)/polyacrylic acid (PAA)/ polyacrylamide (PAM) nanohybrids with magnetism was fabricated by polymerization. The obtained materials (Fe 3 O 4 /HAp/PAA/PAM) was characterized by hysteresigraph, X-Ray diffractometer (XRD), infrared spectrometer (IR), energy dispersive spectroscopy (EDS), mapping, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), vibrating sample magnetometer (VSM). The decontaminating performance of the nanohybrids was evaluated by adsorption methylene blue (MB). Adsorption kinetics and adsorption isotherms were employed to examine the adsorption behavior. The results showed that the adsorption process fitted the Langmuir isotherm and pseudo-second-order kinetic model and Fe 3 O 4 /HAp/PAA/ PAM displayed appreciable adsorption efficiency. The adsorption mechanism was also presumed. The removal of dye mainly attributed to polymer with multifunctional groups and the special structure of HAp. Moreover, it is facile to retrieve due to the incorporation of Fe 3 O 4 with strong magnetism. It proposed a novel route to design and fabricate multifunctional nanohybrid adsorbent for removal of dye with high capacity.