Fast Removal of Pb2+ from Aqueous Solution by Water Insoluble Konjac Glucomannan |
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| Journal | Materials Science Forum (Volumes 610 - 613) |
|---|---|
| Volume | Materials Research |
| Edited by | Zhongwei Gu, Yafang Han, Fusheng Pan, Xitao Wang, Duan Weng and Shaoxiong Zhou |
| Pages | 65-68 |
| DOI | 10.4028/www.scientific.net/MSF.610-613.65 |
| Citation | Xue Gang Luo et al., 2009, Materials Science Forum, 610-613, 65 |
| Online since | January, 2009 |
| Authors | Xue Gang Luo, Feng Liu, Xiao Yan Lin |
| Keywords | Isotherm, Kinetics, Pb2+, Removal, Water Insoluble Konjac Glucomannan |
| Abstract | Konjac glucomannan (KGM) was converted into water insoluble konjac glucomannan (WIKGM) by treating with NaOH through completely deacetylated reaction. Adsorption study was carried out for the adsorption of Pb2+ from aqueous solution using water insoluble konjac glucomannan. The influences of pH, contact time, temperature and initial Pb2+ concentration on the absorbent were studied. Results of kinetic data showed that the Pb2+ adsorption rate was fast and good correlation coefficients were obtained for the pseudo second-order kinetic model. The equilibrium process was described well by the Langmuir isotherm model with maximum adsorption capacity of 9.18 mg/g on WIKGM at 25°C. |
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