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2011-Sustainable Industrial Processing Summit
|Publisher:||Flogen Star OUTREACH|
|ISSN:||2291-1227 (Metals and Materials Processing in a Clean Environment Series)|
HNO3, H2SO4, and KMnO4 were used for the oxidation of multiwalled Carbon nanotubes (MWCNTs). The oxidized MWCTs were selected as sorbent and to study the characterization isotherm of Tl(III). The oxidized MWCNTs exhibit improved physicochemical properties. These oxidized MWCNTs have more negatively charged surface, and as a result are the best adsorbent for Tl(III). The maximum amount of Tl(III) sorbed on MWCNTs, MWCNTs (H2SO4), MWCNTs(KMnO4) , MWCNT(HNO3), calculated by Langmuir model are 2, 12, 22 and 32 mg/g, respectively. The MWCNTs oxidized by HNO3 have the best sorption performance for Tl(III).