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Chalcone-based catalysts and functional nanomaterials for heavy-metal remediation: Mechanistic insights and environmental applications.

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Title: Chalcone-based catalysts and functional nanomaterials for heavy-metal remediation: Mechanistic insights and environmental applications.
Authors: Blall, Elsayed G.1 (AUTHOR), Thyab, Rafah Mohammed2 (AUTHOR), Abdel-Salam, Ahmed H.3,4 (AUTHOR), Morsy, Ahmed5 (AUTHOR), de Oliveira Moura, Leonara6 (AUTHOR), Mohamed, Asmaa7 (AUTHOR), Morsy, Ashraf1,7 (AUTHOR) ashraf.Morsy@alexu.edu.eg
Source: Applied Catalysis A: General. Feb2026, Vol. 712, pN.PAG-N.PAG. 1p.
Subjects: Heavy metals removal (Sewage purification), Chalcone, Biosynthesis, Nanostructured materials, Sustainability, Cementation (Metallurgy), Adsorption (Chemistry), Waste recycling
Abstract: Heavy-metal contamination remains one of the most persistent global environmental challenges due to its toxicity, non-biodegradability, and accumulation in ecosystems. Conventional remediation techniques often struggle to achieve sustainable, selective, and efficient removal under realistic conditions. Chalcones, a subclass of flavonoids characterized by an α,β-unsaturated carbonyl framework, have recently attracted attention as multifunctional ligands capable of chelation, redox mediation, and surface interactions with transition metals. Recent studies have elucidated the mechanistic role of chalcone-based accelerators in cementation processes, particularly in enhancing catalytic activity and electron-transfer pathways for metal recovery. In parallel, chalcone-functionalized nanoparticles and hybrid nanocomposites have been reported to integrate adsorption, complexation, and redox mechanisms, enabling efficient removal of heavy metals such as Pb(II), Cd(II), and Cr(VI). Comparative analyses of adsorption kinetics, thermodynamic behavior, and regeneration performance reveal distinct advantages of chalcone-derived systems over conventional adsorbents, supported by molecular-level insights from density functional theory (DFT) and spectroscopic investigations. Current research trends indicate growing potential for incorporating chalcone-based nanomaterials into scalable water-treatment and resource-recovery applications, particularly through green synthesis approaches, stability enhancement, and cost-effective implementation. [Display omitted] • Chalcone accelerators enhance cementation efficiency for metal recovery. • Functionalized chalcone nanoparticles drive adsorption and redox removal. • Hybrid chalcone–nanocomposites integrate multi-mechanistic remediation. • Future focus: green synthesis, stability, and industrial applications. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:Heavy-metal contamination remains one of the most persistent global environmental challenges due to its toxicity, non-biodegradability, and accumulation in ecosystems. Conventional remediation techniques often struggle to achieve sustainable, selective, and efficient removal under realistic conditions. Chalcones, a subclass of flavonoids characterized by an α,β-unsaturated carbonyl framework, have recently attracted attention as multifunctional ligands capable of chelation, redox mediation, and surface interactions with transition metals. Recent studies have elucidated the mechanistic role of chalcone-based accelerators in cementation processes, particularly in enhancing catalytic activity and electron-transfer pathways for metal recovery. In parallel, chalcone-functionalized nanoparticles and hybrid nanocomposites have been reported to integrate adsorption, complexation, and redox mechanisms, enabling efficient removal of heavy metals such as Pb(II), Cd(II), and Cr(VI). Comparative analyses of adsorption kinetics, thermodynamic behavior, and regeneration performance reveal distinct advantages of chalcone-derived systems over conventional adsorbents, supported by molecular-level insights from density functional theory (DFT) and spectroscopic investigations. Current research trends indicate growing potential for incorporating chalcone-based nanomaterials into scalable water-treatment and resource-recovery applications, particularly through green synthesis approaches, stability enhancement, and cost-effective implementation. [Display omitted] • Chalcone accelerators enhance cementation efficiency for metal recovery. • Functionalized chalcone nanoparticles drive adsorption and redox removal. • Hybrid chalcone–nanocomposites integrate multi-mechanistic remediation. • Future focus: green synthesis, stability, and industrial applications. [ABSTRACT FROM AUTHOR]
ISSN:0926860X
DOI:10.1016/j.apcata.2026.120774