| 三种活性炭对低浓度Cu2+、Zn2+的吸附性能 |
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| 引用本文： | 李松,雷冬飞,黎国兰,李志蓉,刘荷,余翔.三种活性炭对低浓度Cu2+、Zn2+的吸附性能[J].绵阳师范学院学报,2010,29(5):45-49. |
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| 作者姓名： | 李松 雷冬飞 黎国兰 李志蓉 刘荷 余翔 |
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| 作者单位： | 绵阳师范学院化学与化学工程学院,四川绵阳,621000 |
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| 摘 要： | 用竹炭、煤质活性炭及过二硫酸铵氧化处理的煤质活性炭作为吸附剂,研究了三种活性炭对低浓度的铜、锌离子的吸附性能,采用N2吸附等温线、Boemh滴定及零电荷点测定等对活性炭进行表征。经氧化处理后,煤质活性炭的表面含氧官能团增多,尤其是羧基的含量显著增加,pHPZC值降低,较未氧化的煤质活性炭有更高的Cu2＋、Zn2＋的吸附容量。竹炭对Cu2＋、Zn2＋的吸附表现出较好的性能,对浓度为8mg.L-1的Cu2＋、Zn2＋溶液,吸附量分别达到1.87 mg.g-1及2.2 mg.g-1,与氧化后的煤质活性炭较为接近,作为对水中微量金属元素的吸附剂具有良好的开发前景。
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| 关 键 词： | 活性炭 吸附 铜 锌 竹炭 |
The Adsorption of Three Kinds of Active Carbon to Low Concentration CU2+ and Zn2+ |
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| LI Song,LEI Dong-fei,LI Gou-lan,LI Zhi-rong,LIU He,YU Xiang.The Adsorption of Three Kinds of Active Carbon to Low Concentration CU2+ and Zn2+[J].Journal of Mianyang Normal University,2010,29(5):45-49. |
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| Authors: | LI Song LEI Dong-fei LI Gou-lan LI Zhi-rong LIU He YU Xiang |
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| Institution: | LI Song,LEI Dong-fei,LI Gou-lan,LI Zhi-rong,LIU He,YU Xiang (School of Chemistry and Chemical Engineering,Mianyang Normal University,Mianyang,Sichuan 621000) |
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| Abstract: | Bamboo-carbon made in our laboratory,coal-based active carbon and its derivative obtained by oxidization of ammonium persulphate are employed as adsorbent to study the adsorption of three kinds of active carbon to low concentration copper and zinc ions.The influence of surface oxygen-containing functional groups on the adsorption behavior of Zn2+ and Cu2+ has been investigated.These carbon samples are characterized by nitrogen adsorption,Boemh's titration and point of zero charge(pHPZC).Characterization res... |
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| Keywords: | active carbon adsorption copper zinc bamboo carbon |
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