Facile Synthesis and Characterization of Sodium Magnesium Silicate Hydrate/Sodium Magnesium Silicate Hydroxide as Novel Nanostructures for the Efficient Removal of Methylene Blue Dye from Aqueous Media

Al-Wasidi, Asma S.; Basha, Maram T.; Alghanmi, Reem M.; Al‐Farraj, Eida S.; Abdelrahman, Ehab A.

doi:10.1007/s10904-023-02554-7

Cited by 9 publications

(6 citation statements)

References 32 publications

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“…pH < pH PZC ) , the number of positively charged sites of the Fe 3 O 4 /analcime nanocomposite increased, which did not favor the uptake of positively charged copper or cadmium ions owing to electrostatic repulsion [ 44 , 45 ].At higher pH values (i.e. pH > pH PZC ) , the number of negatively charged sites of the Fe 3 O 4 /analcime nanocomposite increased, which favor the uptake of positively charged copper or cadmium ions owing to electrostatic attraction [ 44 , 45 ]. At higher pH values (in the range from 10 to 12), the precipitation of Cu(II) and Cd(II) ions with hydroxides is another reason for high removal.…”

Section: Resultsmentioning

confidence: 99%

“…4 ), were applied to the experimental data in order to comprehend the adsorption processes of copper and cadmium ions using the Fe 3 O 4 /analcime nanocomposite, as shown in Fig. 9 A and B, respectively [ 44 , 45 ]. where, Q t is the amount of copper or cadmium ions adsorbed at time t (mg/g), Q e is the quantity of copper or cadmium ions adsorbed at equilibrium (mg/g), k 1 is the pseudo-first-order rate constant (1/min), and k 2 is the pseudo-second-order rate constant (g/mg.min).…”

Section: Resultsmentioning

confidence: 99%

“…Exploiting Eqs. 5 , 6 , and 7 , the thermodynamic parameters, for example, change in free energy (△G o , KJ/mol), change in enthalpy (△H o , KJ/mol), and change in entropy (△S o , KJ/molK), can be determined [ 44 , 45 ]. The plots of ln K d versus 1/T were presented in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…9 ), were applied to the experimental data in order to comprehend the adsorption processes of copper and cadmium ions using the Fe 3 O 4 /analcime nanocomposite, as shown in Fig. 13 A and B, respectively [ 44 , 45 ]. where, 1/n is the heterogeneity constant whereas k L is the equilibrium constant of the Langmuir isotherm (L/mg).…”

Section: Resultsmentioning

confidence: 99%

Section: Effect Of Concentrationmentioning

confidence: 99%

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Facile synthesis and characterization of Fe3O4/analcime nanocomposite for the efficient removal of Cu(II) and Cd(II) ions from aqueous media

et al. 2023

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In the water purification field, heavy metal pollution is a problem that causes severe risk aversion. This study aimed to examine the disposal of cadmium and copper ions from aqueous solutions by a novel Fe3O4/analcime nanocomposite. A field emission scanning electron microscope (FE-SEM), Fourier transform infrared spectroscopy (FT-IR), and X-ray diffraction were used to characterize the synthesized products. The FE-SEM images showed that the analcime and Fe3O4 samples consist of polyhedral and quasi-spherical shapes with average diameters of 923.28 and 28.57 nm, respectively. Besides, the Fe3O4/analcime nanocomposite consists of polyhedral and quasi-spherical shapes with average diameters of 1100.00 nm. The greatest uptake capability of the Fe3O4/analcime nanocomposite toward the copper and cadmium ions is 176.68 and 203.67 mg/g, respectively. The pseudo-second-order kinetic model and Langmuir equilibrium isotherm best describe the uptake of copper and cadmium ions using the Fe3O4/analcime nanocomposite. The uptake of copper and cadmium ions using the Fe3O4/analcime nanocomposite is exothermic and chemical in nature.

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