Abstract
Several adsorbents were prepared by acid-activating Kirfi Kaolin clay sample obtained from Kirfi village in Bauchi state, Nigeria using sulfuric acid. The raw clay and the prepared adsorbents were characterized for their physical properties (pH, moisture content, apparent bulk density, and adsorptive power) and their chemical compositions, and compared with the properties of a commercial bleaching clay (CBC). Bleaching study was used to determine the adsorptive power of the raw clay as an adsorbent, the adsorbents prepared from the raw clay and the CBC while chemical composition was done using AAS and XRF. The result of compositional analyses showed that the silica content of 50.07% to 74.32% and alumina content of 4.42% to 10.96 were the major components of the raw clay, CBC and the prepared absorbents. The adsorbents prepared with 1 M and 2 M H2SO4 had compositions and physical properties that are similar to that of the CBC, and also has an adsorption powers (81.35% and 94.05% respectively) that are comparable to that of CBC (96.25%).
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