<p><span style="font-size:14px"><span style="font-family:Arial,Helvetica,sans-serif">The organic dyes directly pollute the soil, water, plants and all living systems in the environment. In the present investigation, adsorption of brilliant green dye on silica from aqueous solution was studied. The dye adsorption mechanism was studied on the basic surface of silica. The adsorption parameters were optimized to maximum adsorption. The adsorption mechanism of brilliant green on silica proved that the silica acts as a very good adsorbent for the removal of brilliant green dye.</span></span></p>