Abstract
In this study, the magnetic ethylenediaminetetraacetic acid (EDTA) modified Preyssler/chitosan/Fe3O4 nanoparticles composite (EDTA‐PCF) was introduced as a novel adsorbent for Pb(II) ions removal from aqueous solutions. The characterization study of the prepared EDTA‐PCF was carried out by Fourier transform infrared spectrometer (FTIR), scanning electron microscopy (SEM) and N2 adsorption‐desorption isotherms. The adsorption activity of EDTA‐PCF was evaluated by the effect of adsorbent dosage, pH and contact time on the Pb(II) ions removal. The optimum values for adsorbent dosage and pH were 1.2 g/L and 5.3, respectively (>99% removal efficiency for [Pb2+] = 10 mg/L). In addition, the kinetic study was carried out using pseudo‐first order, pseudo‐second order, Bangham, Elovich, and Weber and Morris models and also the Langmuir, Freundlich, and Temkin isotherm models were applied for isothermal study. The results revealed that the pseudo‐second‐order rate model and Langmuir adsorption model can well describe the adsorption process of Pb(II) ions onto EDTA‐PCF. The Weber and Morris model proposed that film and intra‐particle diffusion were involved in this adsorption process. The maximum adsorption capacity of Pb(II) onto EDTA‐PCF was estimated to be 25.9 mg/g at 25°C.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
