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Effective adsorption of cationic methylene blue dye on cellulose nanofiber/graphene oxide/silica nanocomposite: Kinetics and equilibrium.
- Source :
- Journal of Applied Polymer Science; 7/5/2022, Vol. 139 Issue 25, p1-10, 10p
- Publication Year :
- 2022
-
Abstract
- Development of new adsorbent based on anionic silica precursor, cellulose nanofiber (CNF), and graphene oxide (GO) has prepared via ionic reaction followed by a sol–gel process. Different instruments were used for the characterization of the nanocomposite: Fourier transform infrared spectrometer (FTIR), X‐ray diffraction (XRD), scanning electronic microscope (SEM), Thermal gravimetric analysis (TGA), and transmission electron microscope (TEM). Methylene blue (MB) adsorption on CNF/GO and CNF/GO/silica nanocomposites achieved during 60 min. A pseudo‐second‐order kinetic model was fitted to the adsorption process, with a maximum adsorption capacity of 588.23 and 625 mg/g in a slightly alkaline solution, respectively. It was found that the adsorption capacity of CNF/GO and CNF/GO/silica could regenerate the MB up to four cycles with slight decrease from 98 to 93%. This study showed that CNF/GO and CNF/GO/silica nanocomposites are effective adsorbents for organic pollutants in wastewater. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00218995
- Volume :
- 139
- Issue :
- 25
- Database :
- Complementary Index
- Journal :
- Journal of Applied Polymer Science
- Publication Type :
- Academic Journal
- Accession number :
- 156768866
- Full Text :
- https://doi.org/10.1002/app.52377