The studied hybrid material, based on diatomite and active carbon (KAC), is suitable for adsorption of phenol. The nature of the initial components (diatomite K and active carbon AC) exerts strong influence on the hybrid adsorbent texture. The pore size distribution curve indicates that the sample is mesoporous with comparatively non-uniform pore size distribution within the interval Rp > 3.8 nm. Batch adsorption studies are carried out to evaluate the effects of solution pH and initial phenol

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... oncentration on the adsorption capacity and the adsorbent is characterized by XRD, BET and FTIR. The optimum sorption condition refers to pH 5.0, 0.1 g hybrid adsorbent dosage and 30 min adsorption time. Langmuir-Freundlich's isotherm model provides the best description of phenol adsorption data. The hybrid material investigated is found a very efficient adsorbent of phenol molecules from wastewater.