ArticleNanomaterials (Basel, Switzerland)2025
Fibrous Mesoporous Silica KCC-1 Functionalized with 3,5-Di-tert-butylsalicylaldehyde as an Efficient Dispersive Solid-Phase Extraction Sorbent for Pb(II) and Co(II) from Water.
Article in Nanomaterials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Article
- Schiff-Base-Engineered Fibrous Mesoporous Silica (KCC-1) as an Efficient Sorbent for Dispersive Solid-Phase Extraction of Trace Ni(II) and Cd(II) from Water.Nanomaterials (Basel, Switzerland) · 2026Article
- Sustainable Room-Temperature Sol-Gel Synthesis of Mesoporous Silica Nanoparticles from Sodium Silicate Using Ascorbic Acid and Nonionic Surfactants for Amoxicillin Removal from Water.Nanomaterials (Basel, Switzerland) · 2026Article
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Authors and funding
8 authors.
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No grant is acknowledged in the PubMed record.
Abstract
The accurate determination of trace metals in aqueous matrices necessitates robust sample preparation techniques that enable selective preconcentration of analytes while ensuring compatibility with subsequent instrumental analysis. Dispersive solid-phase extraction (d-SPE), a suspension-based variant of conventional solid-phase extraction (SPE), facilitates rapid sorbent-analyte interactions and enhances mass transfer efficiency through direct dispersion of the sorbent in the sample solution. This approach offers significant advantages over traditional column-based SPE, including faster extraction kinetics and greater operational simplicity. When supported by appropriately engineered sorbents, d-SPE exhibits considerable potential for the selective enrichment of trace metal analytes from complex aqueous matrices. In this work, a fibrous silica-based chelating material, DSA-KCC-1, was synthesized by grafting 3,5-Di-tert-butylsalicylaldehyde (DSA) onto aminopropyl-modified KCC-1. The dendritic KCC-1 scaffold enables fast dispersion and short diffusion pathways, while the immobilized phenolate-imine ligand introduces defined binding sites for transition-metal uptake. Characterization by FTIR, TGA, BET, FESEM/TEM, XRD, and elemental analysis confirmed the successfulness of functionalization and preservation of the fibrous mesostructured. Adsorption studies demonstrated chemisorption-driven interactions for Pb(II) and Co(II) from water, with Langmuir-type monolayer uptake and pseudo-second-order kinetic behavior. The nano-adsorbent exhibited a markedly higher affinity for Pb(II) than for Co(II), with maximum adsorption capacities of 99.73 and 66.26 mg g
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