Metal Doping Silicates as Inorganic Ion Exchange Materials for Environmental Remediation

Abou-Mesalam, M.M.; Abass, Mohamed Ragab; Zakaria, E. S.; Hassan, Ali M.

doi:10.1007/s12633-021-01568-5

Cited by 14 publications

(2 citation statements)

References 28 publications

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“…The monolayer capacities (Q max ) of P(AA-AN)-talc for the sorption of Pb 2+ , Cd 2+ , Co 2+ , Zn 2+ , and Sr 2+ was compared with other sorbents reported in the literature. As represented in Table 8, the monolayer capacities of P(AA-AN)-talc toward the studied cations are higher than the previously reported values which suggested that P(AA-AN)-talc is a promising sorbent to remove Pb 2+ , Cd 2+ , Co 2+ , Zn 2+ , and Sr 2+ from aqueous solutions (Annadurai et al 2003;Anitha et al 2015;Ghasemi et al 2018;Abou-Lilah et al 2020;Hassan et al 2020;Herrera et al 2020;Abass et al 2021aAbass et al , 2022cKayranli 2021;Alsehli 2021;Abou-Mesalam et al 2022).…”

Section: Comparison Of Monolayer Capacity With Different Sorbents Rep...mentioning

confidence: 56%

High efficient removal of lead(II) and cadmium(II) ions from multi-component aqueous solutions using polyacrylic acid acrylonitrile talc nanocomposite

Abass

El-Kenany

El-Masry

2022

Environ Sci Pollut Res

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This study is interested in the removal of Pb(II), Cd(II), Co(II), Zn(II), and Sr(II) onto polyacrylic acid acrylonitrile talc P(AA-AN)-talc nanocomposite. P(AA-AN)-talc was fabricated using γ-irradiation-initiated polymerization at 50 kGy. Different analytical tools were used to investigate the functional groups, morphology, particle size, and structure of this composite. The ability of P(AA-AN)-talc to capture (Pb2+, Cd2+, Co2+, Zn2+, and Sr2+) as multi-component aqueous solutions was performed by a batch method. Saturation capacity and the effect of (agitating time, pH, initial metal concentrations, and temperature) were investigated. The distribution coefficients at different pHs have order: Pb2+ > Cd2+ > Co2+ > Zn2+ > Sr2+. The saturation capacity decreases by increasing heating temperatures. Reaction kinetic obeys the pseudo-second-order model. Sorption isotherms are more relevant to a Langmuir isotherm, and the monolayer sorption capacity is closed to saturation capacity. Thermodynamic parameters (∆G˚, ∆H˚, and ∆S˚) were endothermic and spontaneous. P(AA-AN)-talc is used for loading and recovery of studied cations in the column system. The study confirms that P(AA-AN)-talc is a promised composite for the sorption of the studied ions from aqueous solutions and should be considered as potential material for decontaminating these ions. Graphical abstract

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Section: Comparison Of Monolayer Capacity With Different Sorbents Rep...mentioning

confidence: 56%

High efficient removal of lead(II) and cadmium(II) ions from multi-component aqueous solutions using polyacrylic acid acrylonitrile talc nanocomposite

Abass

El-Kenany

El-Masry

2022

Environ Sci Pollut Res

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“…These materials consist of tetrahedrons of the general formula MO 4 where M is Al or Si in natural zeolites. In the synthetic ones, M can stand for instance for Ti, Zr, B, or Ge [5][6][7][8][9]. Currently, the Structure Commission of the International Zeolite Association (IZA-SC) has recognized 247 unique types of zeolite network structures [10].…”

Section: Zeolitesmentioning

confidence: 99%

Crystalline Zeolite Layers on the Surface of Titanium Alloys in Biomedical Applications: Current Knowledge and Possible Directions of Development

2022

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In this review, the main focus was on the use of zeolites as layers to modify the surface of titanium implants. The article discusses the basic methods for modifying the functional properties of zeolites (e.g., ion exchange) as well as biomedical applications of zeolites (e.g., drug delivery systems and biosensors). The article reviews the surface modifications of titanium alloys prepared so far with the use of various types of zeolites and selected examples are presented. This review shows the significant impact of titanium surface modification with zeolites, as well as their post-synthetic modification on implant properties, for instance, better biocompatibility, faster osseointegration, better cell adhesion, and corrosion resistance properties. The results of the research presented so far in this review show that the modification of titanium with zeolite layers is a very prospective subject, but underdeveloped, as evidenced by a small number of studies on this subject. We have shown that the prepared layers can be continuously improved and used, e.g., as local delivery systems for various active pharmaceutical ingredients (APIs). We hope that the prepared review will help research groups around the world in the preparation of implants modified with zeolites with even better properties and utility applications.

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Yttrium and zirconium sorption on iron tin functionalized with silica: preparation, characterization, isotherm, and kinetic modelling

Mahrous,

Abou-Lilah,

Abass

2024

Adsorption

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The sorption of Zr(IV) and Y(III) was examined using an iron-tin silicate (FeSnSi) composite prepared by the co-precipitation technique. The analytical tools that characterize prepared composite are FT-IR, SEM, EDX, XRD, and XRF. The effects of temperature, pH, ion concentrations, and shaking time are all considered in the sorption studies conducted on Zr(IV) and Y(III). The sorption of studied metal ions depends on pH, and the pseudo-2nd-order model governs the kinetics of reactions. Negative Gibbs energy values confirmed the excellent feasibility and spontaneity of the sorption process. Positive enthalpy values indicate that this process was endothermic. Positive entropy values demonstrated that the disorder between the solid and liquid phases was enhanced during adsorption. Freundlich and Langmuir models are used to study isotherms. The results of the binary system verify that Zr(IV) may be separated from the Zr-Y system at various pHs. According to the findings, the produced composite may effectively remove Zr(IV) and Y(III) from aqueous solutions. It may also be viable for purifying wastewater contaminated with these metal ions.

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Metal Doping Silicates as Inorganic Ion Exchange Materials for Environmental Remediation

Cited by 14 publications

References 28 publications

High efficient removal of lead(II) and cadmium(II) ions from multi-component aqueous solutions using polyacrylic acid acrylonitrile talc nanocomposite

High efficient removal of lead(II) and cadmium(II) ions from multi-component aqueous solutions using polyacrylic acid acrylonitrile talc nanocomposite

Crystalline Zeolite Layers on the Surface of Titanium Alloys in Biomedical Applications: Current Knowledge and Possible Directions of Development

Yttrium and zirconium sorption on iron tin functionalized with silica: preparation, characterization, isotherm, and kinetic modelling

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