Removal of selected metal ions from aqueous solution by adsorption onto chemically modified maize cobs

Akporhonor E. E.; Egwaikhide P. A.

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Removal of selected metal ions from aqueous solution by adsorption onto chemically modified maize cobs

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abstract_textpMaize cob carbon was prepared by pyrolysis at 300 and 400 degrees C for 35 min. This was followed by steeping in saturated ammonium chloride. The activated carbon which was characterized for bulk density, surface area, surface area charge, abrasion resistance and pH was used in the removal of Cd2+, N-1(2+), Cd2+ and Zn2+. The surface areas of the maize cob carbon at 300 and 400 degrees C were 0.010 and 0.021 g sample per mg iodine, respectively. The effectiveness of the modified maize cobs in removing the metal ions from solution was found to be Zn Ni Cd. The removal efficiency of the metal ions is depended on the metal ion concentration and temperature of carbonization./p/abstract_text

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《scientific research and essays》 |2007年第4期|132-134|共3页
作者
Akporhonor E. E.; Egwaikhide P. A.;
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作者单位

Delta State Uivers, Dept Chem, Abraka, Delta State, Nigeria;

Ambrose Alli Univ, Dept Chem, Ekpoma, Edo State, Nigeria;

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原文格式 PDF
正文语种英语
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关键词
maize cobs; activated carbon; pyrolysis; steeping; carbonization; SORPTION;

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Removal of selected metal ions from aqueous solution by adsorption onto chemically modified maize cobs

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