| Kinetic and isothermalstudies of leadionadsorption onto palygorskiteclay | |
| Department | 环境材料与生态化学研究发展中心 |
Chen H(陈浩); Wang AQ(王爱勤) ; 王爱勤 aqwang@licp.cas.cn
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| 2007 | |
| Source Publication | Journal of Colloid and Interface Science
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| ISSN | 0021-9797 |
| Volume | 307Issue:2Pages:309-316 |
| Abstract | The use of a natural palygorskiteclay for the removal of Pb(II) from aqueous solutions for different contact times, pHs of suspension, and amounts and particle sizes of palygorskiteclay were investigated. The variations of the pH value of Pb(II) solutions on natural palygorskite in the adsorption process were determined. Batch adsorptionkinetic experiments revealed that the adsorption of Pb(II) onto palygorskiteclay involved fast and slow processes. It was found that the adsorption mechanisms in the lead/palygorskite system follow pseudo-second-order kinetics with a significant contribution from film diffusion. SEM observations demonstrated that an important interaction at the lead–granule interface occurred during the adsorption process. The adsorption isotherms were described by means of the Langmuir and Freundlich isotherms and the Langmuir model represents the adsorption process better than the Freundlich model. The maximum adsorption capacity of Pb(II) onto natural palygorskite was 104.28 mg?g?1. |
| Keyword | Lead Palygorskiteclay Adsorption Capacity Kinetic Isotherm |
| Subject Area | 胶体与界面 |
| Funding Organization | 甘肃省科技攻关项目(2GS052-A52-002-07) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/197 |
| Collection | 环境材料与生态化学研究发展中心 |
| Corresponding Author | 王爱勤 aqwang@licp.cas.cn |
| Recommended Citation GB/T 7714 | Chen H,Wang AQ,王爱勤 aqwang@licp.cas.cn. Kinetic and isothermalstudies of leadionadsorption onto palygorskiteclay[J]. Journal of Colloid and Interface Science,2007,307(2):309-316. |
| APA | 陈浩,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2007).Kinetic and isothermalstudies of leadionadsorption onto palygorskiteclay.Journal of Colloid and Interface Science,307(2),309-316. |
| MLA | 陈浩,et al."Kinetic and isothermalstudies of leadionadsorption onto palygorskiteclay".Journal of Colloid and Interface Science 307.2(2007):309-316. |
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| 20073072309316.pdf（543KB） | 开放获取 | License | View Application Full Text | |||
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