Abstract
Herein, we have described the important role about biochar aging on the basis of sorption performance of phenanthrene. Biochar used in this study was produced from rice husks at 350 °C and its aging has been manufactured by laboratory incubation. The results showed that an aging layer formed which contains oxygen-bearing groups on to the surface increased during the course of aging. Aging decreased the adsorption capability of biochar obtained under low temperature by 34.10%, ascribed as the increase of oxygen bearing polar moieties; specifically the hydroxyl species that negatively affected sorption of phenanthrene.
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