N, O-rich graphene oxide based eggshell membrane polymer: Preparation, characterization and its utility as nano sorbent for solid phase extraction of Pb (II) in various water samples

Mahmood, Ahmed; Abdallah, Ibtihal Qahtan; Alheety, Mustafa A.; Akbaş, Hüseyin; Karadağ, Ahmet

doi:10.1063/1.5123060

Cited by 27 publications

(4 citation statements)

References 39 publications

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“…The pH-drift method [65] was used for quantifying the pH PZC of the materials. A fixed amount of sorbent (i.e., 100 mg) was distributed in a series of flasks (25 mL aqueous solutions, Polyamide-based materials [32][33][34] and soluble eggshell membrane protein-based nanocomposites adsorbents [35,36] have been successfully tested for the recovery of metal ions, including uranium [15,37] and rare earths [38]. However, the sorption capacities were usually low (in the range 0.5− 0.62 mmol g − 1 for Er(III), Tb(III) and Dy(III)) with optimum sorption close to pH 5, or about 0.08 mmol U g − 1 at pH 7 [39].…”

Section: Characterization Of Materialsmentioning

confidence: 99%

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Synthesis of polyamide 6/nano-hydroxyapatite hybrid (PA6/n-HAp) for the sorption of rare earth elements and uranium

Hassanein

Masoud

Mohamed

et al. 2021

Journal of Environmental Chemical Engineering

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Polyamide (PA6) and hydroxyapatite (n-HAp) have intrinsic sorption properties for metal ions. Their association by melt compounding allows manufacturing a composite material (PA6/n-HAp) efficient for the binding of uranyl and rare earth metal ions (REEs) in acidic solution (in the pH range 2-2.5). The composite shows enhanced sorption capacities (5-7 times) compared with single PA6 material. The structuration of the material slightly improves textural properties but contributes to improve the accessibility and availability of reactive groups (including by size distribution). Metal sorption proceeds mainly through complexation of amide reactive groups as shown by FTIR characterization (modification of the environment of C --O and NH groups) rather than ionexchange/electrostatic attraction. Maximum sorption capacities approach 0.34 mmol U g − 1 , 0.49 mmol Er g − 1 and 0.70 mmol Nd g − 1 : the preference may be correlated to the covalent rather than ionic character of these metal ions. Uptake kinetics are relatively slow (requiring up to 6− 8 h, under selected experimental conditions): the textural properties of the composite (pore size: 2.6 nm) limit the mass transfer properties (though slightly enhanced compared with PA6 precursor). The resistance to intraparticle diffusion constitutes the major con-trolling step for uptake kinetics. Nitric acid is the most efficient eluent for the desorption of loaded metals (ef-ficiency exceeds 94 %); noticeably U(VI) elution is optimal at 1 M HNO 3 concentration, contrary to REEs that require lower concentration (i.e., 0.1 M). Preliminary tests on sulfuric acid leachates of Egyptian ores demon-strate that the sorbent maintains good sorption properties for REEs and U despite the complexity of the solution. The sorbent has a marked preference for REEs, U and Th against base and alkali metals.

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Section: Characterization Of Materialsmentioning

confidence: 99%

“…Debye-Scherrer equation was used to calculate the average crystallite size (L) of n-HAp, PA6 and PA6/n-HAp (Table S3) depending on XRD data (Fig. S5) [36]. The crystallite sizes obtained from Scherrer equation were less than those obtained from TEM and Zetasizer measurements.…”

Section: Functionalization -Ftir Analysismentioning

confidence: 99%

Synthesis of polyamide 6/nano-hydroxyapatite hybrid (PA6/n-HAp) for the sorption of rare earth elements and uranium

Hassanein

Masoud

Mohamed

et al. 2021

Journal of Environmental Chemical Engineering

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“…This was underscored by the emergence of a prominent and broad absorption peak at 260 nm, signifying the excitation of the surface plasmon resonance (SPR) phenomenon in palladium nanoparticles. 3,[14][15][16][17][18][19] Finally, Figure 1D showcased the EDX analysis, which provided compelling confirmation of the purity of the palladium nanoparticles. The EDX spectra prominently featured two distinctive peaks at 2.838 and 3.561 KeV, both attributed to palladium, with an elemental composition exceeding 90 wt%, thereby underscoring the unadulterated nature of the synthesized material.…”

Section: Characterization Of Pd Nanoparticlesmentioning

confidence: 66%

“…In Figure 1C, the UV‐Vis spectroscopy data offered further compelling substantiation for the synthesis of pure palladium nanoparticles. This was underscored by the emergence of a prominent and broad absorption peak at 260 nm, signifying the excitation of the surface plasmon resonance (SPR) phenomenon in palladium nanoparticles 3,14‐19 . Finally, Figure 1D showcased the EDX analysis, which provided compelling confirmation of the purity of the palladium nanoparticles.…”

Section: Resultsmentioning

confidence: 86%

Novel organic‐inorganic nanohybrid (Pd‐GO) nanocomposite: Sonochemical synthesis, characterization, and gas storage

Salih,

Dadoosh,

Sehgal

et al. 2024

Energy Storage

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In this study, nanostructures palladium was synthesized using an ultrasonic wave which is innovative, expeditious, and ecologically benign protocol. In the procedure, ultrasonic probe with 150 W was applied to an aqueous solution of Na2PdCl4 containing sodium citrate for 1 h at room temperature. The as‐prepared palladium nanoparticles were characterized through deployment of XRD, TEM, EDX, and UV‐Vis techniques. Moreover, the study extends to take the benefits from palladium nanoparticles to produce a novel carbon‐based composite using graphene oxide (Pd‐GO) which was characterized by XRD, TEM, EDX, and UV‐Vis. The organic‐inorganic nanohybrid (Pd‐GO) was then applied in a systematic investigation aimed at assessing its ability to enhance the hydrogen storage properties of GO as nano‐palladium was incorporated at a ratio of 1 Pd: 100 GO, yielding a significant enhancement (48%) in the storage capabilities of pure GO.

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Morphological Properties of Nanocrystalline Silicon from p‐Type Bulk Silicon

Al-Kadumi

Al-Baghdadi

2022

Macromolecular Symposia

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In this paper, the topography properties as layer thickness, porosity, and shape are studied for porous silicon prepared by using electro-chemical etching method from p-type bulk silicon like one side mirror with hydrofluoric acid (39%-43%) and ethanol (99.9%) (2:1), the etching time is (2, 4, 6, 8, and 10) min, with potential (6 V DC), the porosity and layer thickness can determine by using gravimetric method and SEM image to study the comparison between the image for different etching time.

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N, O-rich graphene oxide based eggshell membrane polymer: Preparation, characterization and its utility as nano sorbent for solid phase extraction of Pb (II) in various water samples

Cited by 27 publications

References 39 publications

Synthesis of polyamide 6/nano-hydroxyapatite hybrid (PA6/n-HAp) for the sorption of rare earth elements and uranium

Synthesis of polyamide 6/nano-hydroxyapatite hybrid (PA6/n-HAp) for the sorption of rare earth elements and uranium

Novel organic‐inorganic nanohybrid (Pd‐GO) nanocomposite: Sonochemical synthesis, characterization, and gas storage

Morphological Properties of Nanocrystalline Silicon from p‐Type Bulk Silicon

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