Porous Polyvinyl Formaldehyde / MWCNTs Foam for Pb+2 Removal from Water
yosef, M., Fahmy, A., hassan, A., El hotaby, W., Anis, B. (2021). Porous Polyvinyl Formaldehyde / MWCNTs Foam for Pb+2 Removal from Water. EKB Journal Management System, 64(1), 533-545. doi: 10.21608/ejchem.2020.34453.2733
Mohammed yosef; Alaa Fahmy; Ali hassan; Walid El hotaby; Badawi Anis. "Porous Polyvinyl Formaldehyde / MWCNTs Foam for Pb+2 Removal from Water". EKB Journal Management System, 64, 1, 2021, 533-545. doi: 10.21608/ejchem.2020.34453.2733
yosef, M., Fahmy, A., hassan, A., El hotaby, W., Anis, B. (2021). 'Porous Polyvinyl Formaldehyde / MWCNTs Foam for Pb+2 Removal from Water', EKB Journal Management System, 64(1), pp. 533-545. doi: 10.21608/ejchem.2020.34453.2733
yosef, M., Fahmy, A., hassan, A., El hotaby, W., Anis, B. Porous Polyvinyl Formaldehyde / MWCNTs Foam for Pb+2 Removal from Water. EKB Journal Management System, 2021; 64(1): 533-545. doi: 10.21608/ejchem.2020.34453.2733

Porous Polyvinyl Formaldehyde / MWCNTs Foam for Pb+2 Removal from Water

Egyptian Journal of Chemistry
Article 50, Volume 64, Issue 1, January 2021, Page 533-545  XML PDF (1.13 MB)
Document Type: Original Article
DOI: 10.21608/ejchem.2020.34453.2733
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Authors
Mohammed yosef1; Alaa Fahmyorcid 1; Ali hassanorcid 1; Walid El hotabyorcid 2; Badawi Anis email orcid 2
1Chemistry Department, Faculty of Science, Al Azhar University, 11884 Cairo, Egypt
2Spectroscopy Department., Physics Division., National Research Centre, Dokki, Giza, Egypt
Abstract
Preparation of macro-porous polyvinyl formaldehyde / multi-walled carbon nanotubes (PVF/MWCNTs) foam was done via one step reaction during acetalization of polyvinyl alcohol (PVA). The as-prepared PVF/MWCNTs composite was used as an eco-friendly, easy recovery sorbets for Pb (II) from aqueous medium. Fourier transform infrared (FTIR), and high-resolution scanning electron microscopy (HRSEM) were used to investigate the chemical composition and morphological structure of the prepared foam. The results showed that equilibrium occurred within 60 min at pH≈ 5 with a maximum adsorption capacity 3.4 mg/g with 43 % removal (considering the total weight of composite). In addition, the kinetic results are most fitted with pseudo-second-order model indicating that the reaction mechanism is chemisorption in nature. Therefore, it is suggested that the prepared PVF/MWCNTs foam can be used in water treatment systems as an eco-friendly and efficiency sorbent.
Keywords
MWCNTs; adsorption kinetics; heavy metal removal; water treatment
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