| 海藻酸钙纤维状干凝胶吸附铅离子的研究 |
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| 引用本文： | 刘福强,李延辉,夏冰,张盼夏,延致,逄奉建.海藻酸钙纤维状干凝胶吸附铅离子的研究[J].科技信息,2010(7). |
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| 作者姓名： | 刘福强 李延辉 夏冰 张盼夏 延致 逄奉建 |
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| 作者单位： | 青岛大学纤维新材料与现代纺织国家重点实验室培育基地; |
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| 摘 要： | 对比研究了冷冻干燥海藻酸钙纤维状和球状干凝胶对铅离子的吸附作用,考察了溶液初始pH和温度对海藻酸钙纤维状干凝胶吸附铅离子的影响。结果表明,海藻酸钙纤维状干凝胶在相同铅离子浓度下的吸附性能优于球状干凝胶,其吸附速率也明显大于海藻酸钙球状干凝胶。利用Langmuir等温吸附式计算出海藻酸钙纤维状干凝胶在60°C下和pH为5.0时的铅离子最大吸附量为417mg/g。
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| 关 键 词： | 海藻酸钙 铅离子 冷冻干燥 吸附 干凝胶 |
Adsorption of Lead by Calcium Alginate Fibrous Xerogel |
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| LIU Fu-qiang LI Yan-hui XIA Bing ZHANG Pan XIA Yan-zhi PANG Feng-jian.Adsorption of Lead by Calcium Alginate Fibrous Xerogel[J].Science,2010(7). |
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| Authors: | LIU Fu-qiang LI Yan-hui XIA Bing ZHANG Pan XIA Yan-zhi PANG Feng-jian |
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| Institution: | Laboratory of Fiber Materials and Modern Textile/a>;the Growing Base for State Key Laboratory/a>;Qingdao University/a>;Qingdao Shandong/a>;266071/a>;China |
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| Abstract: | The adsorption of Pb2+ by the freeze-dried calcium alginate fibrous xerogel and beads were studied. The effects of solution initial pH and temperature on the lead sorption by calcium alginate fibrous xerogel were investigated. The results show that the adsorption capability of lead by calcium alginate fibrous xerogel is superior to that of the beads,and the adsorption rate is significantly larger than the beads. The Langmuir isotherm was used to describe the experimental data and the calculated maximum adso... |
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| Keywords: | Calcium alginate Lead ion Freeze-dried Adsorption Xerogel |
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