Abstract
Based on the data on adsorption of vapors of nitrogen, n-hexane, water, and electrochemical measurements it has been shown that thermoexpanded graphite possesses a nonuniform-porous structure and a vividly expressed hydrophobic surface per 1 m2 of which there are ∼1018 of active hydrophilic centers. We have carried out their identification. We have investigated adsorption of anionic (sulfonol, direct scarlet dye, fulvic acids), cationic (crystalline violet dye), and nonionogenic (i-OcPh(OE)10) organic matter on the surface of thermoexpanded graphite. It has been shown that the use of the sorbent under investigation in the processes of water purification of dissolved organic compounds has good prospects.
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