The sorption capacity of carbon-mineral sorbents for Cu(II) ions, methyl orange, and iodine was studied. The optimal carbonization temperature for 100:5, 100:10, and 100:20 mixtures was 600°C, which agreed with experimental IR spectroscopic, elemental analytical, and modern thermal analytical data for carbonized sapropel—bentonite-clay mixtures. The carbon-mineral sorbent prepared by carbonization of 100:5 sapropel—bentonite-clay mixture showed high maximum adsorption for Cu(II) ions, methyl orange, and iodine. The volumes of meso- and micropores of all studied sorbents were determined using molecular probes. Carbon-mineral sorbents prepared by carbonization of sapropel—bentonite-clay mixtures at 600°C in an oxidizing medium were found to be meso-macroporous.
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Translated from Khimicheskie Volokna, No. 6, pp. 7-10, November—December, 2018.
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Zykova, I.V., Isakov, V.A. & Solov’eva, A.M. Preparation and Characterization of Carbon-Mineral Sorbents Based on Sapropel from Novgorod Oblast. Part 2 . Fibre Chem 50, 491–495 (2019). https://doi.org/10.1007/s10692-019-10016-5
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DOI: https://doi.org/10.1007/s10692-019-10016-5