چكيده به لاتين
Abstract
In this article, we discuss the synthesis and characterization of a nanocomposite that has been developed for the removal of an organophosphorus pesticide (OPP), chlorpyrifos (CPF), and from aquatic environments. The preparation of biosorbent hydrogel nanocomposites based on APTES modified Fe3O4@XG (Fe3O4@XG-NH2) and thiacalix[4]aren, TCA-XG@Fe3O4 was accomplished in four steps. Hydrogel nanocomposite preparations were very well characterized by Fourier transform infrared (FT-IR), energy dispersive X-ray (EDX), scanning electron microscopy (SEM), X-ray diffraction (XRD), vibrating sample magnetometer (VSM), CHN, zeta potential, and Brunauer-Emmett-Teller (BET) analyses. This study examined the effectiveness of TCA-XG@Fe3O4 in elimination an organophosphorus pesticide (OPP), chlorpyrifos (CPF), and from aquatic environments. As part of batch experiments, the effects of different experimental parameters, such as the beginning concentration, pH, adsorbent dosage, contact time, and pH were all studied. We discovered that the kinetic data very well fitted the pseudo-first and pseudo-second-order simulations of (CPF), respectively, as well as intraparticle diffusion models. The adsorption mechanism was found to be affected by intraparticle diffusion. As a result, the Freundlich and Langmuir equations described the isothermal data, as well as the maximum capacity for adsorption (Qmax) of the prepared bio sorbents was and 477.7 mg/g for chlorpyrifos. H-bonds Furthermore, dipole-dipole and electrostatic interactions can explain Molecular interactions between anionic adsorbents (OPP). Since the nanocomposites have the ability to regenerate excellent, they are thought to be attractive materials for the absorption of components from the aquatic environment, such as CPF.
