An efficient and green palladium adsorbent was prepared from 2,3-dialdehyde cellulose (DAC) originating from nanocellulose from the green algae <i>Cladophora</i>. The DAC was functionalized in a convenient one-pot procedure to provide the adsorbent. The adsorption properties for adsorbing palladium(II), including capacity, adsorption isotherms, kinetics, desorption and recycling, were studied. The successful reductive amination of amine containing ligands with DAC was confirmed by FTIR, elemental analysis and XPS. The adsorbent was characterized by SEM, XRD, gas adsorption and TGA. The adsorbent had a high adsorption capacity (130 mg palladium per gram adsorbent) and enabled fast adsorption of palladium from solution (80% of maximum capacity reached in 2 h). Adsorbent materials suitable for both filters (fibrous) and column matrixes (spherical particles) could be obtained in an efficient manner by controlling the degree of oxidation while producing the DAC material.

Green and simple approach for one-pot preparation of an efficient palladium adsorbent based on functionalized 2,3-dialdehyde cellulose

251st National Meeting (2016)

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