Iron Sulfide Functionalized Polyaniline Nanocomposite for the Removal of Eosin Y from Water: Equilibrium and Kinetic Studies

Danu, Bernice Y.; Agorku, Eric Selorm; Ampong, Francis Kofi; Awudza, Johannes A. M.; Torve, Vincent; Danquah, I. M. K.; Ama, Onoyivwe Monday; Osifo, Peter Ogbemudia; Ray, Suprakas Sinha

doi:10.1134/s1560090421030040

Cited by 2 publications

(2 citation statements)

References 34 publications

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“…This is based on the observation that any material in contact with the reaction mixture becomes coated with a thin submicrometre film [ 44 ], which is well suited for adsorption purposes. The coating of inorganic substrates is represented by the following: barium titanate [ 45 ]; cobalt ferrite [ 28 ]; cobalt sulfide [ 46 ]; copper(II) oxide [ 47 ]; fly ash [ 48 ]; iron oxyhydroxide [ 49 ]; iron sulfide [ 21 ]; magnetite [ 50 ]; manganese(IV) dioxide [ 34 , 40 ]; manganese ferrite [ 51 ]; magnesium ferrite [ 52 ]; molybdenum trioxide [ 53 ]; montmorillonite [ 54 ]; nickel oxide [ 40 ]; silica gel [ 55 ]; tin dioxide [ 56 ]; titanium dioxide [ 22 , 33 , 57 , 58 ]; zeolite [ 59 ]; zinc oxide [ 60 , 61 , 62 ]; zirconium(IV) dioxide [ 63 ].…”

Section: Polyaniline Adsorbentsmentioning

confidence: 99%

“…The experimental data and the time dependence of the dye concentration decrease are often interpreted in terms of various adsorption models: a pseudo-first-order, a pseudo-second-order, Freundlich, Langmuir, Temkin, or others. The authors found that one of them provided the best fit of the data, with the Langmuir isotherm being the most often winner [ 7 , 8 , 20 , 21 , 22 , 23 , 24 ]. This is the correct approach, but only if the dye removal mechanism is based exclusively on adsorption.…”

Section: Introductionmentioning

confidence: 99%

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Recent Advances in the Removal of Organic Dyes from Aqueous Media with Conducting Polymers, Polyaniline and Polypyrrole, and Their Composites

Stejskal

2022

Polymers

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Water pollution by organic dyes, and its remediation, is an important environmental issue associated with ever-increasing scientific interest. Conducting polymers have recently come to the forefront as advanced agents for removing dye. The present review reports on the progress represented by the literature published in 2020–2022 on the application of conducting polymers and their composites in the removal of dyes from aqueous media. Two composites, incorporating the most important polymers, polyaniline, and polypyrrole, have been used as efficient dye adsorbents or photocatalysts of dye decomposition. The recent application trends are outlined, and future uses also exploiting the electrical and electrochemical properties of conducting polymers are offered.

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Section: Polyaniline Adsorbentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recent Advances in the Removal of Organic Dyes from Aqueous Media with Conducting Polymers, Polyaniline and Polypyrrole, and Their Composites

Stejskal

2022

Polymers

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Facile and green synthesis of CuS-activated carbon nanocomposite from Sargassum siliquastrum biomass for fast and efficient removal of eosin yellow dye

Hasan,

Assaf,

Tawfik

2023

Biomass Conv. Bioref.

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Sargassum spp. comprise significant amounts of biomass which can be risky for environmental and economic activities; thus, taking the advantage of this underutilized raw material could make a significant contribution to long-term sustainability. In this study, Sargassum siliquastrum (SS) brown alga was successfully transformed into CuS nanoparticles–activated carbon (CuS NPs–AC) composite for adsorption of the hazardous dye eosin yellow (EY) from aqueous solutions. The CuS NPs–AC sorbent was characterized through FTIR, XRD, SEM-EDX, and SBET analyses. Characterization results revealed the successful formation of CuS NPs–AC nanocomposite. Results of the adsorption process indicated that EY was efficiently removed with a percentage of 99.6% at the optimum conditions; pH 7, 120 min contact time, 2 g/L CuS NPs–AC dose, and 300 mg/L initial EY concentration. Adsorption data fitted well with pseudo-second-order kinetics and Langmuir isotherm model with a monolayer adsorption capacity of 303.03 mg/g at 328 K. Thermodynamic analyses revealed that the adsorption process was spontaneous and endothermic. The adsorbent showed high selectivity towards EY and followed a three-stage intraparticle diffusion mechanism. The potent adsorption of EY by CuS NPs–AC nanocomposite was attributed to electrostatic attraction, π-π stacking, halogen bonding, and hydrogen bonding. This study developed a reliable and cost-effective adsorbent for removing EY dye from water. Graphical Abstract

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Iron Sulfide Functionalized Polyaniline Nanocomposite for the Removal of Eosin Y from Water: Equilibrium and Kinetic Studies

Cited by 2 publications

References 34 publications

Recent Advances in the Removal of Organic Dyes from Aqueous Media with Conducting Polymers, Polyaniline and Polypyrrole, and Their Composites

Recent Advances in the Removal of Organic Dyes from Aqueous Media with Conducting Polymers, Polyaniline and Polypyrrole, and Their Composites

Facile and green synthesis of CuS-activated carbon nanocomposite from Sargassum siliquastrum biomass for fast and efficient removal of eosin yellow dye

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