| Autor: |
El-Aassar, M. R., Ibrahim, Omar M., Omar, Basma Mohamed, El-Hamid, Hazem T. Abd, Alsohaim, Ibrahim Hotan, Hassan, Hassan M. A., Althobaiti, Ibrahim O., El-Sayed, Mohamed Y., Goher, Mohamed E., Fakhry, Hala |
| Předmět: |
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| Zdroj: |
Journal of Polymers & the Environment; Jul2023, Vol. 31 Issue 7, p2912-2929, 18p |
| Abstrakt: |
Organic azo dyes such as Methylene Blue (MB) pollute water and are considered a global threat to the health and environment. Accordingly, the present study aims to fabricate cost-effective, eco-friendly, and highly performing hybrid beads of Poly (Acrylonitrile-co-Styrene/Pyrrole)@Poly Vinyl Pyrrolidone (Poly (AN-co-ST/Py)@PVP) for Methylene Blue dye adsorption via the phase inversion technique. The fabricated hybrid beads were physico-chemically characterized by scanning electron microscopy (SEM), thermogravimetric analysis (TGA), fourier transform infrared (FTIR), nuclear magnetic resonance (NMR), and atomic force microscopy (AFM). The required experimental adsorption conditions were optimized: contact time, dye solution pH, beads dosage, and MB initial concentration. Langmuir isotherm and pseudo-second order kinetic models described the MB adsorption equilibrium and kinetics well. Only 0.8 g of the fabricated hybrid beads were needed to achieve a maximum of 90% dye removal after 180 min of equilibrium time. For screening, twenty-five runs were applied, and thirteen runs were optimized using the Plackett–Burman Design (PBD) model. Time is the most effective factor in PBD, with an efficiency rate of 88.42%, according to the optimization stage of the process after initial screening revealed that time, dosage, and dye concentration were the most important variables. The fabricated hybrid beads reveal a great ability to adsorb MB molecules effectively from wastewater samples. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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