Enhanced removal of indigo carmine dye from aqueous solutions using polyaniline modified partially reduced graphene oxide composite DOI Creative Commons

Saadia M. Waly,

Ahmad M. El-Wakil,

Mohamed M. Waly

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: May 3, 2025

Abstract In this study, graphene oxide (GO) nanosheets were chemically modified by attaching polyaniline (PAN) nanoparticles to their surfaces, creating a partially reduced composite (PAN@PRGO). This synthesized PAN@PRGO nanocomposite serves as an innovative and highly effective adsorbent for removing indigo carmine (IC) dye from water. The morphology chemical composition of analyzed using various techniques, including scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), photoelectron (XPS), confirming the successful grafting PAN onto GO surface. Batch adsorption tests showed that has outstanding capacity dye, achieving 490.0 mg g −1 at pH 5.0 298 K. is notably higher than alone (317.25 ) exceeds other materials reported in literature. Additionally, demonstrated 100% removal efficiency IC concentrations up 300 L . experimental data closely matched Langmuir isotherm model pseudo-second-order kinetic model, suggesting electron-sharing interactions between contribute mechanism. adsorbed was recoverable 0.1 M NaOH solution, with retaining near-100% even after five adsorption–desorption cycles. These results indicate promising, reusable industrial wastewater.

Language: Английский

Chitosan/Acid Modified Olive Tree (Olea europaea) Leaves as Sustainable Adsorbent for Organic Dye Removal from Water: Adsorption Modeling and Optimization by Box-Behnken Design DOI
Ahmed Saud Abdulhameed,

Rima Heider Al Omari,

Alaa A. Al-Masud

et al.

International Journal of Environmental Research, Journal Year: 2025, Volume and Issue: 19(2)

Published: Jan. 9, 2025

Language: Английский

Citations

3
Development of Eco-Friendly Hydrogel for the Adsorption of Indigo Carmine Dye DOI Creative Commons
Bibiana Bitelo,

Daniela Eduarda Schneider,

César Liberato Petzhold

et al.

Colorants, Journal Year: 2025, Volume and Issue: 4(1), P. 8 - 8

Published: Feb. 19, 2025

The use of indigo carmine dye in the textile industry, particularly denim production, presents a significant sustainability challenge due to large amounts wastewater generated by this process, since fabric is one most produced around world. In order face challenges like this, effluent treatment using polymeric materials has become an area intense research. study, we developed eco-friendly hydrogel based on oligoglycerol-malic acid polyester crosslinked with citric acid, which was applied adsorb carmine. properties and its precursors were analyzed spectroscopic, thermal, morphologic techniques. demonstrated water uptake capacity up 187% own mass adsorbed approximately 73% after 24 h contact. Tests conducted presence sodium chloride indicated that salt impairs adsorption process. Additionally, kinetics isotherms evaluated followed pseudo-second-order model, indicating chemisorption Langmuir isotherm, consistent monolayer adsorption. These results emphasize potential for removing application industry treatment, aiming minimize environmental impacts.

Language: Английский

Citations

0
Design and characterization of tunable chitosan hydrogels cross-linked with epiclon through amide bond formation modified with multi-walled carbon nanotubes for adsorption of aflatoxin B 1 from aqueous solutions DOI
Ali Reza Karimi,

Sahand Fateh,

Fahimeh Bayat

et al.

Journal of Macromolecular Science Part A, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 11

Published: Feb. 24, 2025

Language: Английский

Citations

0
Optimized adsorption of methylene blue dye onto bio-based citric acid-modified oleander (Nerium oleander) leaves/chitosan adsorbent using Box-Behnken design approach DOI
Ahmed Saud Abdulhameed,

Rima Heider Al Omari,

Ibrahim A. Alsayer

et al.

Biomass Conversion and Biorefinery, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

Language: Английский

Citations

0
Enhanced removal of indigo carmine dye from aqueous solutions using polyaniline modified partially reduced graphene oxide composite DOI Creative Commons

Saadia M. Waly,

Ahmad M. El-Wakil,

Mohamed M. Waly

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: May 3, 2025

Abstract In this study, graphene oxide (GO) nanosheets were chemically modified by attaching polyaniline (PAN) nanoparticles to their surfaces, creating a partially reduced composite (PAN@PRGO). This synthesized PAN@PRGO nanocomposite serves as an innovative and highly effective adsorbent for removing indigo carmine (IC) dye from water. The morphology chemical composition of analyzed using various techniques, including scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), photoelectron (XPS), confirming the successful grafting PAN onto GO surface. Batch adsorption tests showed that has outstanding capacity dye, achieving 490.0 mg g −1 at pH 5.0 298 K. is notably higher than alone (317.25 ) exceeds other materials reported in literature. Additionally, demonstrated 100% removal efficiency IC concentrations up 300 L . experimental data closely matched Langmuir isotherm model pseudo-second-order kinetic model, suggesting electron-sharing interactions between contribute mechanism. adsorbed was recoverable 0.1 M NaOH solution, with retaining near-100% even after five adsorption–desorption cycles. These results indicate promising, reusable industrial wastewater.

Language: Английский

Citations

0