Synthesis of fungal chitosan–polystyrene modified by nanoparticles of binary metals for the removal of heavy metals from waste aqueous media

El-Sabbagh, Sabha M.; Mira, Hamed I.; Desouky, Osman A.; Hussien, Shimaa S.; Elgohary, Dina M.; Ali, Anwaar O.; El Naggar, Ahmed M. A.

doi:10.1039/d3ra04451c

Cited by 5 publications

(4 citation statements)

References 63 publications

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“…This finding strongly implies that the sorption of U(VI) on these biochar materials occurs under very favourable conditions. It further confirms that, regardless of the initial uranium concentration, the adsorption of uranium onto PBC, PBC-SA, and PBC-Zn is not only effective but also preferable (El-Sabbagh et al 2023). PBC, PBC-SA, and PBC-Zn, respectively, and that the heat-adsorption process's binding constant is 0.34, 3.41, and 2.57 L g -1 for PBC, PBC-SA, and PBC-Zn, respectively.…”

Section: Effect Of the Initial Concentrationsupporting

confidence: 62%

“…process takes place inside the surface pores(El-Sabbagh et al 2023). In other research, the same various response mechanisms were mentioned(Abdel-Magied 2017;Morshedy et al 2021; Adsorption isotherms show the relationship between the concentration of a solute in the solid phase and the aqueous phase at a given temperature.…”

mentioning

confidence: 77%

“…In order to evaluate the influence of intraparticle diffusion on the control of uptake kinetic, the data was treated using a simplified RID equation ( 5) (El-Sabbagh et al 2023):…”

Section: Effect Of the Initial Concentrationmentioning

confidence: 99%

“…Freundlich isotherm variables could be explored by the illustration of log qe against the log Ce (Figure 13), while the relation between Ce/ qe versus Ce (Figure 14) could be used for the evaluation Langmuir isotherm variables. Furthermore, the Langmuir parameters can be used to predict the affinity between the sorbate and adsorbent utilizing the dimensionless separation factor RL (El-Sabbagh et al 2023):…”

Section: Effect Of the Initial Concentrationmentioning

confidence: 99%

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Uranium capture from aqueous solution using Palm-waste based activated carbon: sorption kinetics and equilibrium

Youssef,

El-Maadawy,

Masoud

et al. 2023

Preprint

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In this research, we examined the effectiveness of adsorbents derived from commercially available palm kernel shell bio-char (PBC), as well as palm shell carbon that was activated through treatment with H2SO4 (PBC-SA) and ZnCl2 (PBC-Zn). Our primary objective was to enhance the adsorption capabilities of carbon materials and develop efficient sorbents for the removal of uranium ions from aqueous solutions. To gain insight into the characteristics of these materials, we employed various analytical techniques, including SEM, EXD, BET, FTIR, and Zeta potential. The optimization of the adsorption process involved the careful consideration of key parameters such as pH, contact time, adsorbent dosage, and initial metal ion concentration. Under specific conditions, including a pH level of 4.5, a contact time of 60 minutes, an adsorbent dosage of 10.0 g/L, and an initial metal concentration of 50 mg/L, the adsorbent materials PBC, PBC-SA, and PBC-Zn demonstrated uranium ion sorption capacities of 9.89 mg/g, 16.81 mg/g, and 21.93 mg/g, respectively. The kinetics of the adsorption process were analyzed using three models: the pseudo first-order model, the pseudo second-order model, and the intraparticle diffusion model. Our findings indicated that the pseudo second-order kinetics model provided the most suitable description of the uranium adsorption onto the prepared materials. Furthermore, the adsorption isotherm data were consistent with the Langmuir model, suggesting that the adsorption of uranium ions onto all materials followed a monolayer adsorption mechanism. Lastly, thermodynamic analysis revealed that the adsorption process was spontaneous and exothermic in nature.

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Section: Effect Of the Initial Concentrationsupporting

confidence: 62%

mentioning

confidence: 77%

“…In order to evaluate the influence of intraparticle diffusion on the control of uptake kinetic, the data was treated using a simplified RID equation ( 5) (El-Sabbagh et al 2023):…”

Section: Effect Of the Initial Concentrationmentioning

confidence: 99%

Section: Effect Of the Initial Concentrationmentioning

confidence: 99%

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Uranium capture from aqueous solution using Palm-waste based activated carbon: sorption kinetics and equilibrium

Youssef,

El-Maadawy,

Masoud

et al. 2023

Preprint

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Uranium capture from aqueous solution using palm-waste based activated carbon: sorption kinetics and equilibrium

Youssef,

El-Maadawy,

Masoud

et al. 2024

Environ Monit Assess

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Carbonaceous materials produced from agricultural waste (palm kernel shell) by pyrolysis can be a proper type of low-cost adsorbent for wide uses in radioactive effluent treatment. In this context, the as-produced bio-char (labeled as PBC) and its sub-driven sulfuric acid and zinc oxide activated carbons (labeled as PBC-SA, and PBC-Zn respectively) were employed as adsorbents for uranium sorption from aqueous solution. Various analytical techniques, including SEM (Scanning Electron Microscopy), EXD (X-ray Diffraction), BET (Brunauer–Emmett–Teller), FTIR (Fourier Transform Infrared Spectroscopy), and Zeta potential, provide insights into the material characteristics. Kinetic and isotherm investigations illuminated that the sorption process using the three sorbents is nicely fitted with Pseudo-second-order-kinetic and Langmuir isotherm models. The picked data display that the equilibrium time was 60 min, and the maximum sorption capacity was 9.89, 16.8, and 21.9 mg/g for PBC, PBC-SA, and PBC-Zn respectively, which reflects the highest affinity for zinc oxide, activated bio-char, among the three adsorbents, for uranium taking out from radioactive wastewater. Sorption thermodynamics declare that the sorption of U(VI) is an exothermic, spontaneous, and feasible process. About 92% of the uranium-loaded PBC-Zn sorbent was eluted using 1.0 M CH3COONa sodium ethanoate solution, and the sorbent demonstrated proper stability for 5 consecutive sorption/desorption cycles.

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Porous sodium alginate/poly (acrylic acid) composites cross-linked with FeCl3 for acid black 1 dye removal from aqueous solution

Hidayat,

Sarbani,

Samitsu

et al. 2024

Desalination and Water Treatment

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Synthesis of fungal chitosan–polystyrene modified by nanoparticles of binary metals for the removal of heavy metals from waste aqueous media

Abstract: Fungal chitosan was extracted (via the biotechnology route) to produce a novel composite for the removal of Cd ions from wastewater. It consists of a chitosan core and nanoparticle-decorated polystyrene shell to conserve chitosan at low pH.

Cited by 5 publications

References 63 publications

Uranium capture from aqueous solution using Palm-waste based activated carbon: sorption kinetics and equilibrium

Uranium capture from aqueous solution using Palm-waste based activated carbon: sorption kinetics and equilibrium

Uranium capture from aqueous solution using palm-waste based activated carbon: sorption kinetics and equilibrium

Porous sodium alginate/poly (acrylic acid) composites cross-linked with FeCl3 for acid black 1 dye removal from aqueous solution

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