| 氧化改性橡椀单宁对铜离子溶液的吸附性 |
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| 引用本文： | 李怡,罗学刚.氧化改性橡椀单宁对铜离子溶液的吸附性[J].化工进展,2009,28(2):210. |
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| 作者姓名： | 李怡 罗学刚 |
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| 作者单位： | 西南科技大学生命科学与工程学院 |
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| 摘 要： | 以橡椀栲胶为原料，通过双氧水氧化降解改性，研究水解类橡椀单宁改性后对铜离子溶液的吸附沉淀以及pH值、金属溶液初始浓度对铜离子吸附沉淀容量的影响和规律。结果表明，氧化橡椀单宁对Cu2+的吸附平衡符合Freundlich方程。改性后吸附沉淀容量受初始浓度影响较大，初始浓度为20 mg/L时基本不发生吸附沉淀，试验最大初始浓度100 mg/L时吸附量达到39.300 mg/g。
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| 关 键 词： | 吸附 氧化改性 橡椀单宁 铜离子 |
Adsorption removal of copper from aqueous solution by oxidization modified valonia tannin |
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| LI Yi,LUO Xuegang.Adsorption removal of copper from aqueous solution by oxidization modified valonia tannin[J].Chemical Industry and Engineering Progress,2009,28(2):210. |
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| Authors: | LI Yi LUO Xuegang |
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| Affiliation: | School of Life Science and Engineering，Southwest Univerwsity of Science and Technology |
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| Abstract: | Valonia extract was oxidized by H2O2. The modified valonia tannin was investigated for adsorption removal of copper in aqueous solution. The influences of pH value,initial Cu2+ concentration on adsorption capacity of Cu were discussed. The result indicated that oxidization of valonia tannin was well-fitted by the Freundlich equation. The copper adsorption capacity of modified tannin was mainly influenced by the initial concentration. When it was 20mg/L,there was no adsorption,and the maximum adsorption capa... |
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| Keywords: | adsorption oxidization valonia tannin copper ion |
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