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- W4220989063 endingPage "127018" @default.
- W4220989063 startingPage "127018" @default.
- W4220989063 abstract "Current study aims to synthesize chitosan/polyvinyl alcohol (CS/PVA), poly(ethyleneimine), and Fe3O4 impregnated beads for co-removal of Cr(VI) and toxic azo-dyes from wastewater. The mesoporous PEI@AC@Fe3O4 exhibits magnetism and enhanced physisorption by higher specific-porosity (2.1 nm) from Cr(VI) radii (0.044 nm). Moreover, surface functional groups (-OH, -NH, -NH2, -COOH etc.), especially amines enhance ionic bonding due to positive zeta potential. Hence, it is unique for anionic dyes removal under a wide pH range. It showed maximum adsorption capacity 98, 85.5, 85.8, and 91%, or 199.8, 148, 167, 176.5 mg g-1 respectively for Cr(VI), tartrazine, sunset yellow, and erythrosine. Surface adsorption of Cr(VI) and its transition into Cr(III) was confirmed by EDX. Langmuir isotherm and pseudo-first-order kinetics best fit the adsorption of Cr(VI) and azo-dyes confirming their monolayer physisorption on adsorbent surface. Synthesized adsorbent examined in wastewater purification prototype for efficient removal of different simulated wastewaters confirms its potential for real-world applications." @default.
- W4220989063 created "2022-04-03" @default.
- W4220989063 creator A5021935698 @default.
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- W4220989063 date "2022-05-01" @default.
- W4220989063 modified "2023-10-18" @default.
- W4220989063 title "Chitosan-based nanocomposites for removal of Cr(VI) and synthetic food colorants from wastewater" @default.
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- W4220989063 doi "https://doi.org/10.1016/j.biortech.2022.127018" @default.
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