| 假二级反应模型在泥煤吸附Ni(II)中的应用(英文) |
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| 引用本文： | 刘峙嵘,韦鹏,曾凯,周利民.假二级反应模型在泥煤吸附Ni(II)中的应用(英文)[J].中山大学学报(自然科学版),2007(Z1). |
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| 作者姓名： | 刘峙嵘 韦鹏 曾凯 周利民 |
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| 作者单位： | 东华理工学院应用化学系 江西抚州344000 |
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| 基金项目： | 国家留学基金委资助项目(22307S05)，东华理工学院博士基金资助项目(DHB0504)，东华理工学院核资源与环境工程技术中心开放测试基金资助项目(051104) |
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| 摘 要： | 应用液闪分析手段,简要地研究了pH值对63Ni在泥煤中吸附的影响。结果表明,63Ni迅速地被泥煤吸附而达到吸附平衡,水相pH值的增加有利于泥煤的吸附。63Ni在泥煤上吸附动力学行为可以很好地用假二级反应进行描述。
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| 关 键 词： | 镍-63 泥煤 吸附 液闪 假二级反应 |
Pseudo-second-order Model for Sorption of Nickel (II) onto Peat |
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| LIU Zhi-rong,WEI Peng,ZENG Kai,ZHOU Li-min.Pseudo-second-order Model for Sorption of Nickel (II) onto Peat[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2007(Z1). |
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| Authors: | LIU Zhi-rong WEI Peng ZENG Kai ZHOU Li-min |
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| Abstract: | Peat contains many functional groups, such as alcohols, aldehydes, acids, and phenolic hydroxides which can be involved in chemical bonding with metallic ions. The use of peat for removal of nickel from aqueous solution has been investigated at various aqueous pH values by means of liquid scintillation counting. The present research shows that the ability of binding Ni on peat increases with increment of aqueous pH values and reaches the adsorption equilibrium rapidly. A reasonable kinetic model, pseudo-second-order model, has been developed and fitted for sorption of nickel (II) onto peat. The pseudo-second-order model provides a high degree of correlation with the experimental data for the sorption of nickel on to peat. |
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| Keywords: | nickel-63 peat sorption liquid scintillation counting pseudo-second-order model |
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