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Characterization of a humic gel synthesized from an activated epoxy silica gel

Abstract : Purified humic acid has been covalently bound on activated epoxy silica gel particles. Determination of physical properties and chemical properties was conducted in order to characterize the material at different stages of the preparation. FTIR spectra and the PEC of the surface bound humic acid is very similar to that of humic acid starting material. This shows that the humic acid was not deteriorated during the surface binding process. This humic gel can be used as an analogue for sediment associated humic acid, with the advantage that covalently bound humic acid does not desorb, and thus allows for simple species separation between non-complexed and humic bound metal ions in batch and column experiments.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-02278742
Contributor : Cécile Barbot Connect in order to contact the contributor
Submitted on : Wednesday, September 4, 2019 - 3:36:59 PM
Last modification on : Wednesday, April 27, 2022 - 4:55:06 AM

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C. Barbot, K. Czerwinski, Gunnar Buckau, J. Kim, Valérie Moulin, et al.. Characterization of a humic gel synthesized from an activated epoxy silica gel. Radiochimica Acta, Oldenbourg Wissenschaftsverlag, 2002, 90 (4), ⟨10.1524/ract.2002.90.4_2002.211⟩. ⟨hal-02278742⟩

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