Activated carbon from krishnachura fruit (<i>Delonix regia</i>) and castor seed (<i>Ricinus communis L.</i>)

Abstract

Activated carbons were prepared from the husk of krishnachura (<i>Delonix regia</i>) fruit and the hull of castor (<i>Ricinus communis L</i>. ) seed using zinc chloride and steam-N₂ as activating agent. The activating agent steam-N₂ was used only for krishnachura whi le ZnCl₂ was used both for activating krishnachura and castor samples. It was found that the adsorptive capacity

<span style="font-size:12.0pt;line-height:115%;font-family:" times="" new="" roman";="" mso-fareast-font-family:"times="" roman";color:#232323;mso-ansi-language:en-in;="" mso-fareast-language:en-in;mso-bidi-language:hi"="" lang="EN-IN">of carbons produced by using ZnCl₂ and steam-N₂ as activating agent is comparable with that of commercially available samples. The adsorptive capacity was measured by permanganate method and the carbons produced were employed for the decolorization of molasses solution.</span>