Today, over 70,000 synthetic organic chemicals are in general use. Some of the chemicals causes hormone imbalance. Those chemicals were called endocrine disruptors, for example bisphenol. In this study, the interaction between the surface of activated carbons and bisphenol A was estimated from the relation of the Freundlich constants and surface properties of activated carbons. The polarity groups of the activated carbon inhibited the adsorption of bisphenol A onto the pore of activated carbons

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... the radius of which was from 7.5 to 20 . Adsorption of bisphenol A onto the activated carbons depended upon both the polarity and pore structure of activated carbon. The reduced activated carbon was utilized for the removal of bisphenol A in water.