Adsorption of Co(II), Ni(II) and Cu(II) ions onto chitosan-modified poly(methacrylate) nanoparticles: Dynamics, equilibrium and thermodynamics studies

Shaker, Medhat A.

doi:10.1016/j.jtice.2015.05.027

Cited by 56 publications

(10 citation statements)

References 45 publications

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“…where q t and q e are the amounts of adsorption at time t and equilibrium per unit mass of adsorbent mg/g, respectively, and k 1 is the pseudo first-order rate constant 1/h. The transformed linear pseudo second order is given by Equation ( 7) [159][160][161]:…”

Section: Adsorption Evaluation Strategiesmentioning

confidence: 99%

Heavy Metal Adsorption Using Magnetic Nanoparticles for Water Purification: A Critical Review

et al. 2021

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Research on contamination of groundwater and drinking water is of major importance. Due to the rapid and significant progress in the last decade in nanotechnology and its potential applications to water purification, such as adsorption of heavy metal ion from contaminated water, a wide number of articles have been published. An evaluating frame of the main findings of recent research on heavy metal removal using magnetic nanoparticles, with emphasis on water quality and method applicability, is presented. A large number of articles have been studied with a focus on the synthesis and characterization procedures for bare and modified magnetic nanoparticles as well as on their adsorption capacity and the corresponding desorption process of the methods are presented. The present review analysis shows that the experimental procedures demonstrate high adsorption capacity for pollutants from aquatic solutions. Moreover, reuse of the employed nanoparticles up to five times leads to an efficiency up to 90%. We must mention also that in some rare occasions, nanoparticles have been reused up to 22 times.

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Section: Adsorption Evaluation Strategiesmentioning

confidence: 99%

Heavy Metal Adsorption Using Magnetic Nanoparticles for Water Purification: A Critical Review

et al. 2021

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“…When γ-Fe3O3 is made composite with SiO2 then removal capacity for methyl blue increases to116.09 mg/g by physical adsorption mechanism [119]. Some water pollutants such as direct red (DR), direct green red 6 (DGR6), and acid blue 92 (AB92) dyes can be removed using CoFe2O4 nanoparticles effectively, when functional group amine is attached with CoFe2O4 its removal efficiency increases which is shown in the table 4 [120]. Whereas CoFe2O4 composite made with titania-CoFe2O4 polyaniline, it is concluded anionic dyes are removed effectively than cationic dyes because anionic dyes contribute to electrostatic attractions with positively charged part of polyaniline [114].…”

Section: Note : Methyl Orange (Mo) Trypan Blue (Tb) Brilliant Blue R (Bbr) Acid Red 88 (Ar88) Crystal Violet (Cv)mentioning

confidence: 98%

Application of Magnetic Nano Particles and their Composites as Adsorbents for Waste Water Treatment: A Brief Review

Dhiman

2021

Materials Research Foundations

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The present review highlights the different types of nano ferrites and their surface modified composites as an alternative adsorbent in waste water treatment. In this review, the recent progresses and potential applications of SFNPs/SFNCs for the removal of organic and inorganic contaminants through adsorption routes are critically reviewed. There are number of water purification techniques but the adsorption is one of the simplest, effective and economical method for wastewater purification. Adsorption isotherm models, kinetic models, thermodynamic parameters and adsorption mechanism have also been discussed. The present article lists different type of adsorbents and reviews state-of-the-art of the removal of different pollutants from water. The efforts have been made to discuss the sources of contamination and toxicities of pollutants. The possible techniques of recovery and reuse, toxicity, research gaps and the future perspective of SFNPs are also discussed in brief. Based on this review, it is possible to conclude that SFNPs and their derivative composites have unlimited capacity in addressing array of problems encountered in water and wastewater treatment. The present study highlights the future areas of research for waste water treatment.

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“…For an adsorbent to be of industrial application, it must retain its adsorption properties even after many cycles of adsorption and desorption. 123 Due to its efficiency and low cost, desorption is typically preferred to chemical treatment of adsorbent than biological and thermal treatment. 124 Different eluents are required for desorption that have strong biosorption mechanisms and should be cost-effective.…”

Section: Desorptionmentioning

confidence: 99%

Preparation and application of magnetic chitosan in environmental remediation and other fields: A review

Shaumbwa

Liu

Archer

et al. 2021

J of Applied Polymer Sci

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Magnetic chitosan has received considerable attention over the decades due to its low cost, biodegradability, green sources, magnetic intensity. In this review, we reviewed the preparation methods of magnetic chitosan using co-precipitation, cross-linking and electrochemical. Therein cross-linking methodologies involved in the reaction of amino groups are facile to introduce additional reaction groups and improve anti-swelling of chitosan layers, mostly in an acidic environment. Besides, we focused on the applications of magnetic chitosan in various fields such as wastewater treatment, for example, removal of heavy metal ions, organic/inorganic dyes, fluorides, and pesticides. Moreover, magnetic chitosan also reveals great potential application in the field of medical, pharmaceutical, food and electronic screening. Above all, magnetic chitosan is economically and operationally beneficial as it can be easily separated and controlled with an external magnetic field and can be modified to maximize its functions.

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Adsorption of Co(II), Ni(II) and Cu(II) ions onto chitosan-modified poly(methacrylate) nanoparticles: Dynamics, equilibrium and thermodynamics studies

Cited by 56 publications

References 45 publications

Heavy Metal Adsorption Using Magnetic Nanoparticles for Water Purification: A Critical Review

Heavy Metal Adsorption Using Magnetic Nanoparticles for Water Purification: A Critical Review

Application of Magnetic Nano Particles and their Composites as Adsorbents for Waste Water Treatment: A Brief Review

Preparation and application of magnetic chitosan in environmental remediation and other fields: A review

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