Mesoporous nanomaterials based on manganese with different interlayer alkali cations: An efficient approach for the removal of Pb(II) and Cd(II) from aqueous medium

Amina Amarray (1) , Sanae El Ghachtouli (1) , Jocelyne Leroy (2) , Patrick Bonnaillie (3) , Khaoula Khaless (4) , Mouad Dahbi (5) , Mohammed Azzi (1)

1 Laboratoire Interface Matériaux et Environnement
2 LICSEN - Laboratoire Innovation en Chimie des Surfaces et NanoSciences
3 DMN - Département des Matériaux pour le Nucléaire
4 Department of Chemical and Biochemical Sciences
5 Materials Science and Nanoengineering (MSN) Department

The unique properties of nanomaterials provide a promising solution for environmental applications. Thus, three nanomaterials based on manganese birnessite-type in the form of well-structured nanowires and nanoflowers were synthesized by soft hydrothermal treatment, simple economical and without adding reagents or any other processes. Interlayer alkali cations (K+, H+ and Na+) inserted in the birnessite structure have demonstrated their effect on the structural and morphological properties of the nanomaterials and consequently on their metal ions removal efficiency. K-MnO2 nanowires with inserted K+ ions were characterized by high performance in short processing time (5 min) compared to other nanomaterials. The maximum adsorption quantities were respectively for Pb(II): K-MnO2 (300 mg/g)

Domains: Chemical Sciences; Material chemistry

Amina Amarray, Sanae El Ghachtouli, Jocelyne Leroy, Patrick Bonnaillie, Khaoula Khaless, et al.. Mesoporous nanomaterials based on manganese with different interlayer alkali cations: An efficient approach for the removal of Pb(II) and Cd(II) from aqueous medium. Journal of Water Process Engineering, 2021, 40, pp.101944. ⟨10.1016/j.jwpe.2021.101944⟩. ⟨cea-03528066⟩