Sorption and possible preconcentration of europium and gadolinium ions from aqueous solutions by Mn3O4 nanoparticles

Sayed, Moubarak A.; Helal, A. I.; Abdelwahab, Sherif; Mahmoud, Hazem H.; Aly, H. F.

doi:10.1007/s11696-019-00906-7

Cited by 12 publications

(4 citation statements)

References 55 publications

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“…In contrast, gadolinium removal with Dowex-HCR S/S resin increased with the temperature increase [1]. The same pattern was noted when manganese oxide nanoparticles were used for gadolinium sorption [24].…”

Section: Biosorption Of Gadolinium On a Platensissupporting

confidence: 58%

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Cyanobacteria Arthospira platensis as an Effective Tool for Gadolinium Removal from Wastewater

et al. 2023

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The biosorption and bioaccumulation of gadolinium by Arthospira platensis in batch experiments was examined. In biosorption experiments, the influence of pH, gadolinium concentration, time of contact and temperature on Arthospira platensis sorption capacity was investigated. The maximum biosorption capacity of 101 mg/g was attained at a pH of 3.0 and temperature of 20 °C. A pseudo-first-order model was applicable to describe the kinetics of the biosorption and the Freundlich model to explain the equilibrium of the process. In bioaccumulation experiments, besides the examination of the gadolinium uptake by Arthospira platensis, its effect on biomass productivity as well as the content of proteins, lipids, carbohydrates and pigments was assessed. The addition of gadolinium in the cultivation medium resulted in the increase in biomass productivity and the content of MDA and, at the same time, in the reduction in the amount of proteins and carbohydrates. The content of other monitored parameters did not change significantly. The water extracts obtained from Arthospira platensis showed a higher antiradical activity against the ABTS cation radical in comparison with ethanolic extracts. Arthospira platensis is of interest for the development of the technology of gadolinium-contaminated wastewater remediation.

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Section: Biosorption Of Gadolinium On a Platensissupporting

confidence: 58%

“…We can hypothesize that Arthospira platensis will show high removal capacity toward gadolinium ions as well. It should be mentioned that the sorption capacity of inorganic sorbents applied for gadolinium ion removal usually is not very high [2,24,25].…”

Section: Introductionmentioning

confidence: 99%

Cyanobacteria Arthospira platensis as an Effective Tool for Gadolinium Removal from Wastewater

et al. 2023

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“…Considering the factors such as adsorption capacity and selectivity are the most direct indexes to assess the practicability of adsorbent, the comparison with other adsorbents used to adsorb REM ions was carried out. [35][36][37][38] As summarized in Table 4, it can be observed that the adsorption capacity of PEI-CMC-IIS is not the highest, but PEI-CMC-IIS simultaneously possesses comparable adsorption capacity and excellent selectivity under neutral conditions, which is superior to other adsorbents in some way. Moreover, the main advantages of PEI-CMC-IIS are the cost-effective design, good stability, easy separation, pollution-free for the treated water, satisfactory adsorption capacity and selectivity.…”

Section: Comparison With Other Adsorbentsmentioning

confidence: 99%

Rational fabrication of a new ionic imprinted carboxymethyl chitosan-based sponge for efficient selective adsorption of Gd(iii)

et al. 2022

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“…In the case of NH, the sorption of Pb(II) using NH is attributed to the interaction between the oxygen-containing functional groups (O-H, Mn-O, Mn-O-Mn) and the elements under study through electrostatic interaction as specified in Fig. S9 in the Supporting Information [37].…”

Section: Mechanism Of Sorption By Nh Ac and Their Nanocompositesmentioning

confidence: 99%

Synthesis and Characterization of Hausmannite‐Activated Carbon Nanocomposites for Removal of Lead from Aqueous Solutions

et al. 2022

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Nano-hausmannite (Mn 3 O 4 ; NH) was prepared together with its composites with activated carbon (AC), namely, HAC-1 and HAC-2. These materials were characterized by different techniques, and the adsorption properties of the studied sorbents NH, AC, HAC-1, and HAC-2 for Pb(II) were evaluated considering the effects of shaking time, pH, sorbent weight, initial Pb(II) concentrations, and temperature using batch experiments. The kinetics of sorption was described by the pseudo-first-order model. The adsorption isotherm was well fitted to the Sips model. The adsorption process was endothermic. Desorption experiments indicated that Pb(II) was released from the loaded adsorbents: NH, AC, HAC-1, and HAC-2 using 1.0 M HCl (97 % efficiency). Infrared spectral analysis suggested adsorption of Pb(II) through chemical bonding between the negatively charged functional groups of Mn-O, Mn-O-Mn, OH, and COOwith Pb(II).

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Sorption and possible preconcentration of europium and gadolinium ions from aqueous solutions by Mn3O4 nanoparticles

Cited by 12 publications

References 55 publications

Cyanobacteria Arthospira platensis as an Effective Tool for Gadolinium Removal from Wastewater

Cyanobacteria Arthospira platensis as an Effective Tool for Gadolinium Removal from Wastewater

Rational fabrication of a new ionic imprinted carboxymethyl chitosan-based sponge for efficient selective adsorption of Gd(iii)

Synthesis and Characterization of Hausmannite‐Activated Carbon Nanocomposites for Removal of Lead from Aqueous Solutions

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