The adsorption of 2-phenylphenol onto organically pillared clays (a natural montmorillonite and a synthetic saponite) was investigated. Organoammonium salts used for the clay modification were trimethylphenylammonium bromide, 3-(trifluoromethyl)phenyltrimethylammonium bromide, and neostigmine bromide. All the organically pillared clays adsorbed 2-phenylphenol from water. The adsorbed amount of 2-phenylphenol was smaller as the cation-exchange capacity of host was larger, showing possible pore volume engineering.
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