Mechanistic study of Hg(II) interaction with three different α-aminophosphonate adsorbents: Insights from batch experiments and theoretical calculations

Fouda, Safaa R.; El-Sayed, Ibrahim E.T.; Attia, Nour F.; Abdeen, Marwa M.; Aleem, Abdel Aleem H. Abdel; Nassar, Ibrahim F.; Mira, Hamed I.; Gawad, Ebrahim A.; Kalam, Abul; Al‐Ghamdi, Ahmed A.; Galhoum, Ahmed A.

doi:10.1016/j.chemosphere.2022.135253

Cited by 23 publications

(8 citation statements)

References 52 publications

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“…As investigated, we know that chitosan and phenothiazine have a proper high affinity for the mercury chemical element, presenting a substantial premise for their amalgamation within a stable system to retain/keep large quantities from a metal of a comparatively raised density [ 5 , 10 ]. Furthermore, the intensive comportment study of xerogel swelling implies the fact that the mercury ions caused the reinforcement/fortifying of the mixed networks accomplished either with chitosan or with phenothiazine, successfully admitting their mercury recuperation fitting.…”

Section: Methodsmentioning

confidence: 99%

“…Furthermore, the swelling comportment examination of the xerogels advised us that the mercury ions caused the reinforcement of the chitosan-phenothiazine system, rendering this system suitable for mercury recuperation. It can be easily observed that mercury recuperation depended on the degree of reticulation of the xerogels, along with the concentration of the mixture, idem, etc [ 10 , 15 ]. As assumed, the available specimens were capable of recovering a higher quantity of hydrargyrum from a large concentration of the blend because of the fact that a higher density of Hg ions in the sample was present.…”

Section: Methodsmentioning

confidence: 99%

“…The main problem is the toxicity of these chemical elements and the respective metals in general. Thereby, the degree of toxicity presented is a function of several factors, from which we can cite a few that are the most important: the chemical species, effective dose, and the reason for exposure or contamination route, as well as genetics, gender, age, particular nutritional status, and individual exposure levels [ 10 , 11 , 12 ]. On account of their great degree of toxicity, cadmium, chromium, arsenic, mercury, and lead are considered the pre-eminent metals that are of social relevance in terms of health.…”

Section: Introductionmentioning

confidence: 99%

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Mercury Bonding to Xerogel: The Interface Fractal Dynamics of the Interaction between Two Complex Systems

Paun,

Paun

2023

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This study describes novel solid substances founded on chitosan and TEGylated phenothiazine that have a high ability for hydrargyrum recovery from watery liquid solutions. These compounds were taken into account, consisting of two distinct entity interactions inside of the classic fractal dynamics conjecture of an “interface”. They were assimilated through fractal-type mathematical objects and judged as such. The bi-stable behavior of two fractally connected objects was demonstrated both numerically and graphically. The fractal character was demonstrated by the fractal analysis made using SEM images of the xerogel compounds with interstitial fixed hydrargyrum. For the first time, SEM helped to verify such samples from two distinct bodies, with the multifractal parameter values being listed in continuation. The fractal dimension of the rectangular mask is D1 = 1.604 ± 0.2798, the fractal dimension of the square mask is D2 = 1.596 ± 0.0460, and the lacunarity is 0.0402.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mercury Bonding to Xerogel: The Interface Fractal Dynamics of the Interaction between Two Complex Systems

Paun,

Paun

2023

Gels

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“…The attraction between cationic dye molecules and the excess hydroxyl ions causes a minor drop in adsorption at pH levels of 10.0. Owing to the chemical interaction that occurs between RhB dye and LaZnFe 2 O 4 @NiWO 4 @D400-MMT@MMA-CMS nanocomposites, the cationic dye still significantly adsorbed at pH = 8 45 . Importantly, electrostatic interactions excluding van der Waals are primarily responsible for the increased adsorption of amphoteric dye at high pH (and cationic dyes at low pH).…”

Section: Adsorption Processmentioning

confidence: 99%

Impact of LaZnFe2O4 supported NiWO4@D400-MMT@CMS/MMA nanocomposites as a catalytic system in remediation of dyes from wastewater

Fouda,

Hassan

2024

Sci Rep

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Herein, a novel nanocomposite based on lanthanum zinc ferrite and nickel tungstate was created by incorporation between (MMT-jeffamine-400) nanoparticles (NPs), chloromethyl styrene as a binder and polymethyl methacrylate monomer using solution polymerization. The as-designed nanocomposites were employed to confiscate xylenol orange “X.O” as an acidic dye and rhodamine B “RhB” as “an amphoteric dye” from colored wastewater. The impact of several parameters such as solution pH, initial dye concentration, the effect of time, and the effect of temperature was explored. The consequences indicated that the pure organoclay had negligible adsorption while that composed of organoclay with PMMA@CMS-polymer incorporated with LaZnFe2O4@NiWO4 particles detached more than 90% for xylenol orange (XO) and 93% for “rhodamine B” molecules. Electrostatic interactions are the predominant factor in the adsorption of cationic and amphoteric adsorbates, as proven by zeta-potential measurement. Additionally, the adsorbent may be regenerate and utilized up to five times with good adsorption capabilities by adding sodium hydroxide. As a result, the removal can be effectively accomplished using the nanocomposite as an adsorbent. The actual and theoretical adsorption capacity values for both dyes at all doses were closely matched, which supported the adsorption kinetics data that fit the pseudo-first order rate model well. The adsorption data’s correlation values (0.995 for XO and 0.98 for RhB) indicated that both dyes’ Langmuir adsorption would perform well. Furthermore, the adsorption of XO and RhB dyes on the adsorbent is confirmed to be a viable reaction by the negative values of ΔGo. The enhanced adsorbent material for the removal of amphoteric and anionic dyes from waste water is the synthesized LaZnFe2O4 supported NiWO4@D400-MMT@CMS/MMA nanocomposites, which exhibits a reusability affinity of up to five cycles.

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“…This is why the desirable limits for mercury are very low, not higher than 0.002 ppm [ 9 ]. In this context, the researchers’ attention is focused on the development of materials capable of detecting and recovering mercury from the environment and human body [ 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

TEGylated Phenothiazine-Imine-Chitosan Materials as a Promising Framework for Mercury Recovery

Cibotaru

Ailincai

Andreica

et al. 2022

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This paper reports new solid materials based on TEGylated phenothiazine and chitosan, with a high capacity to recover mercury ions from aqueous solutions. They were prepared by hydrogelation of chitosan with a formyl derivative of TEGylated phenothiazine, followed by lyophilization. Their structural and supramolecular characterization was carried out by 1H-NMR and FTIR spectroscopy, as well as X-ray diffraction and polarized light microscopy. Their morphology was investigated by scanning electron microscopy and their photophysical behaviour was examined by UV/Vis and emission spectroscopy. Swelling evaluation in different aqueous media indicated the key role played by the supramolecular organization for their hydrolytic stability. Mercury recovery experiments and the analysis of the resulting materials by X-ray diffraction and FTIR spectroscopy showed a high ability of the studied materials to bind mercury ions by coordination with the sulfur atom of phenothiazine, imine linkage, and amine units of chitosan.

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Mechanistic study of Hg(II) interaction with three different α-aminophosphonate adsorbents: Insights from batch experiments and theoretical calculations

Cited by 23 publications

References 52 publications

Mercury Bonding to Xerogel: The Interface Fractal Dynamics of the Interaction between Two Complex Systems

Mercury Bonding to Xerogel: The Interface Fractal Dynamics of the Interaction between Two Complex Systems

Impact of LaZnFe2O4 supported NiWO4@D400-MMT@CMS/MMA nanocomposites as a catalytic system in remediation of dyes from wastewater

TEGylated Phenothiazine-Imine-Chitosan Materials as a Promising Framework for Mercury Recovery

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