Porous Polyvinyl Formaldehyde / MWCNTs Foam for Pb+2 Removal from Water | ||
| Egyptian Journal of Chemistry | ||
| Article 50, Volume 64, Issue 1, January 2021, Pages 533-545 PDF (1.13 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejchem.2020.34453.2733 | ||
| Authors | ||
| Mohammed yosef1; Alaa Fahmy1; Ali hassan1; Walid El hotaby2; Badawi Anis* 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 | ||
|
Statistics Article View: 808 PDF Download: 514 |
||
