Effectiveness of a biogenic composite derived from cattle horn core/iron nanoparticles via wet chemical impregnation for cadmium (II) removal in aqueous solution

Ngueagni, P. Tsopbou; Kumar, Pramod; Woumfo, Emmanuel Djoufac; Abilarasu, A.; Joshiba, G. Janet; Carolin, C. Femina; Prasannamedha, G.; Fotsing, Patrick Nkuigue; Siewe, M.

doi:10.1016/j.chemosphere.2021.129806

Cited by 9 publications

(1 citation statement)

References 40 publications

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“…Finally, in a similar way, the presence of lead was calculated and registered 497.27 ppm which decreased to 467.91 ppm, an approximate of 30 ppm between the initial and final concentration because the pH is an influential variable during the absorption of lead, it has been shown that pH < 4 protonation decreases the amount of active sites causing an electrostatic repulsion condition on the surface of the sorbent between H + ions and Pb ions, causing less adsorption, likewise with pH > 6 it favors the generation of lead hydroxides which tend to precipitate [23,67]. A similar situation is evidenced with Cadmium according to the literature, where a deprotonation of the sample contributes to a better removal [68]. In our results, the high percentage of removal of the Cadmium C3 sample is also due to the low initial concentration for metal compared to Chromium and lead samples.…”

Section: Magnetization Measurements (Spion)mentioning

confidence: 54%

Influence of the Alcoholic/Ethanolic Extract of Mangifera indica Residues on the Green Synthesis of FeO Nanoparticles and Their Application for the Remediation of Agricultural Soils

et al. 2021

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The green synthesis of iron oxide nanoparticles (FeO NP) has been investigated using the extract in absolute ethanolic and alcoholic solvents 96% from the peel of the mango fruit (Mangifera indica), thus evaluating the influence of the type of solvent on the extraction of reducing metabolites. A broad approach to characterization initially controlled by UV-vis spectrophotometry has been directed, the formation mechanism was evaluated by Fourier transform infrared spectroscopy (FTIR), the magnetic properties by characterization by Physical Property Measurement System (PPSM), in addition to a large number of techniques such as X-ray energy dispersive spectroscopy (EDS), X-ray diffraction (DRX), transmission electron microscopy (TEM/STEM), electron energy loss spectroscopy (EELS), and Z potential to confirm the formation of FeO NP. The results suggest better characteristics for FeO NP synthesized using 96% alcoholic solvent extract. The successful synthesis was directly proven in the removal of metals (Cr-VI, Cd, and Pb) as a potential alternative in the remediation of agricultural soils.

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Section: Magnetization Measurements (Spion)mentioning

confidence: 54%

Influence of the Alcoholic/Ethanolic Extract of Mangifera indica Residues on the Green Synthesis of FeO Nanoparticles and Their Application for the Remediation of Agricultural Soils

et al. 2021

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Valorization of pyrolytic plastic-derived char for adsorption of wastewater contaminants: a kinetic and thermodynamic investigation

Barracco,

Parisi,

Pipitone

et al. 2024

Int. J. Environ. Sci. Technol.

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The sustainable management of plastic waste is one of the challenges of our time due to the high percentage of landfilling. One of the strategies is its thermal treatment via pyrolysis, but it is associated with the production of a char, necessitating a proper valorization pathway. In this work, we investigated for the first time the use as adsorbent of a real plastic-derived char obtained as such from a pyrolysis pilot plant. This is a novel approach with respect to literature, where the char is typically obtained as desired product. The adsorbent was characterized via several techniques, and methylene blue was chosen as representative contaminant of wastewater. The inorganic component (80 wt.%) was mainly associated with the presence of rod-like structures, rich in Si, while the organic fraction showed the occurrence of aromatic components. Under the thermodynamic point of view, Langmuir isotherm effectively fitted the experimental data (R2 = 0.98), while the kinetic results were well described by a pseudo-second-order law (R2 > 0.99). The negative Gibbs free energy highlighted that the adsorption process was spontaneous, and the enthalpy change (∆H0 = 7.18 kJ/mol) revealed the endothermic nature of the process, in a range characteristic of physisorption phenomena. Overall, this study highlights that a low-value char, derived from a real plastic waste, can be a promising valuable alternative to expensive adsorbents thanks to its adsorption capacity of 5.8 mg/g without prior activation treatments, hence being a starting point for the development of a holistic approach in plastic waste management.

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Factors affecting adsorption capabilities of nanoscale materials

Othmani,

Maitlo,

Hamimed

2023

Adsorption Through Advanced Nanoscale Materials

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Effectiveness of a biogenic composite derived from cattle horn core/iron nanoparticles via wet chemical impregnation for cadmium (II) removal in aqueous solution

Cited by 9 publications

References 40 publications

Influence of the Alcoholic/Ethanolic Extract of Mangifera indica Residues on the Green Synthesis of FeO Nanoparticles and Their Application for the Remediation of Agricultural Soils

Influence of the Alcoholic/Ethanolic Extract of Mangifera indica Residues on the Green Synthesis of FeO Nanoparticles and Their Application for the Remediation of Agricultural Soils

Valorization of pyrolytic plastic-derived char for adsorption of wastewater contaminants: a kinetic and thermodynamic investigation

Factors affecting adsorption capabilities of nanoscale materials

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