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Can I read Chitosan-based nanocomposites for removal of Cr(VI) and synthetic food colorants from wastewater on EtoBox?
Chitosan-based nanocomposites for removal of Cr(VI) and synthetic food colorants from wastewater by Shivangi Singh; Emmanuvel Arputharaj; Hans-Uwe Dahms; Anil Kumar Patel; Yeou-Lih Huang is a Engineering article available to read on EtoBox.
What is Chitosan-based nanocomposites for removal of Cr(VI) and synthetic food colorants from wastewater about?
Current study aims to synthesize chitosan/polyvinyl alcohol (CS/PVA), poly(ethyleneimine), and FeO impregnated beads for co-removal of Cr(VI) and toxic azo-dyes from wastewater. The mesoporous PEI@AC@FeO 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, -NH, -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 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.
Who reads Chitosan-based nanocomposites for removal of Cr(VI) and synthetic food colorants from wastewater?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Shivangi Singh; Emmanuvel Arputharaj; Hans-Uwe Dahms; Anil Kumar Patel; Yeou-Lih Huang
- Publisher
- Elsevier BV
- Published
- 2022
- Language
- EN
- Field
- Engineering (Physical Sciences)