Synthetic Zeolite from Blast Furnace Slag (BFS) as an effective sorbent for simultaneous removal of Cadmium and Copper ions

[Display omitted] •Zeolite were successfully prepared from blast furnace slag by a facile hydrothermal method.•XRD, SEM, and FTIR confirm the zeolite’ active functional groups involved in metal adsorption.•Sorption capacity of Zeolite is 130 and 80 mg/g for Cu(II) and Cd(II), respectively.•Zeolite p...

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Bibliographic Details
Published in:Inorganic chemistry communications 2024-10, Vol.168, p.112870, Article 112870
Main Authors: Abdel Moniem, Shimaa M., Hegazey, Raed M., Embaby, Mohamed A., El-Kady, Ahmed A., Dhmees, Abdelghaffar S.
Format: Article
Language:English
Subjects:
Adsorption
Adsorption modelling
Blast furnace slag (BFS)
Metal ions
Zeolite
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Summary:[Display omitted] •Zeolite were successfully prepared from blast furnace slag by a facile hydrothermal method.•XRD, SEM, and FTIR confirm the zeolite’ active functional groups involved in metal adsorption.•Sorption capacity of Zeolite is 130 and 80 mg/g for Cu(II) and Cd(II), respectively.•Zeolite prepared from slag waste, is framework for future leading technology in waste management and environmental remediation. The main challenge for remediation of metals contaminated water is the application of a proper, effective, low-cost material for decontamination of hazardous metal. In this study, low-cost zeolite derived from blast furnace slag (Z-BFS) by a facile hydrothermal method was investigated for adsorption of copper (Cu2+) and cadmium (Cd2+) ions from aqueous solutions. Furthermore, the characteristics of the prepared Z-BFS were evaluated via different techniques (FT-IR, XRF, XRD, SEM and EDX). The results showed the complete removal of Cd2+ and Cu2+ ions. Notably, the maximum adsorption capacity of metals had the trend Cu2+ (103 mg/g) > Cd2+ (80 mg/g) within 20 min at pH 5.5 and 2 g Z-BFS/l. The experimental data fit well with the pseudo-second order kinetic model elucidating that chemisorption is the rate determining step. The isotherms of adsorption were satisfactorily described by the Langmuir isotherm model indicating the monolayer adsorption process. The thermodynamic study demonstrated that adsorption process is endothermic. The obtained results from this study show that Z-BFS proves to be a proper candidate adsorbent for the removal of Cd2+ and Cu2+ ions from contaminated water.
ISSN:1387-7003
DOI:10.1016/j.inoche.2024.112870