| Friedel化合物对Pb2+的稳定作用 |
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| 引用本文： | 许云峰,任重,浦秋君,曹亚丽,周吉峙,孙颖,钱光人.Friedel化合物对Pb2+的稳定作用[J].环境科学学报,2009,29(3):594-599. |
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| 作者姓名： | 许云峰 任重 浦秋君 曹亚丽 周吉峙 孙颖 钱光人 |
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| 作者单位： | 1. 上海大学,环境与化学工程学院,上海 20007
2. 上海普陀区环境监测站,上海,200062 |
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| 基金项目： | 国家自然科学基金，上海市重点学科建设项目 |
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| 摘 要： | 为了考察Friedel化合物对Pb2+的稳定能力,在合成单矿物Friedel化合物的基础上,利用等温吸附法研究了Friedel化合物对Pb2+离子的平衡吸附量和吸附动力学;利用改进的TCLP毒性浸出试验和解吸试验,探讨了Friedel化合物对Pb2+离子束缚的化学稳定性;通过XRD、FTIR等测试方法对Friedel化合物稳定吸附Pb2+前后、浸出及解吸前后的晶体微结构进行了对比分析.初步推断提出了Pb2+污染物离子在Friedel化合物中受束稳定的反应机制.
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| 关 键 词： | Friedel化合物 束缚 稳定 |
| 收稿时间： | 4/22/2008 6:41:59 PM |
| 修稿时间： | 7/23/2008 8:55:55 AM |
Stabilization mechanism of Friedel's salt on Pb2+ |
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| XU Yunfeng,REN Zhong,PU Qiujun,CAO Yali,ZHOU Jishi,SUN Ying and QIAN Guangren.Stabilization mechanism of Friedel's salt on Pb2+[J].Acta Scientiae Circumstantiae,2009,29(3):594-599. |
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| Authors: | XU Yunfeng REN Zhong PU Qiujun CAO Yali ZHOU Jishi SUN Ying and QIAN Guangren |
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| Institution: | XU Yunfeng1,REN Zhong1,PU Qiujun2,CAO Yali1,ZHOU Jishi1,SUN Ying1,QIAN Guangren1,1.Department of Environmental , Chemical Engineering,Shanghai University,Shanghai 2000722.Shanghai Putuo Environmental Monitoring Station,Shanghai 200062 |
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| Abstract: | To study the stabilization ability and mechanism of of Pb2+ on Friedel's salt(Ca2Al(OH)6(Cl,OH)·2 H2O),its equilibrium adsorption and adsorption kinetics were evaluated by isothermal adsorption experiments.Improved TCLPand desorption experiments were used to study the chemical stability of Pb2+-doped Friedel's salt.The phases and microstructures of heavy metal-substituted Friedel's salt were characterized by XRDand FTIR.Based on these results,mechanisms of stabilization of Pb2+ on Friedel's salt are suggested. |
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| Keywords: | LDH |
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