| 粘土基多孔陶瓷吸附处理Cu~(2+)废水 |
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| 引用本文： | 郭丽华,申倩倩,刘治国,张爱琴,王淑花,贾虎生.粘土基多孔陶瓷吸附处理Cu~(2+)废水[J].环境科学与技术,2011,34(10):171-173,181. |
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| 作者姓名： | 郭丽华 申倩倩 刘治国 张爱琴 王淑花 贾虎生 |
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| 作者单位： | 新材料界面科学与工程教育部重点实验室 太原理工大学材料科学与工程学院 山西太原030024 |
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| 基金项目： | 山西省国际科技合作项目(2007081029;2009081046) |
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| 摘 要： | 文章以粘土为骨料,蛭石为改性剂,通过添加造孔剂法制备了粘土基多孔陶瓷吸附剂,研究了溶液中Cu2+初始浓度、pH值以及蛭石添加量对多孔陶瓷吸附性能的影响。结果表明:多孔陶瓷吸附Cu2+的最佳条件为添加蛭石1%,溶液pH为5;当初始浓度为20~100 mg/L时,Cu2+吸附率达到82%~62%,吸附平衡时间为1.5~6 h;吸附动力学表明多孔陶瓷对Cu2+的吸附大致分为两个阶段;其吸附行为可用Langmuir方程和Freundlich方程来描述。
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| 关 键 词： | 粘土基多孔陶瓷 吸附性能 Cu2+ 吸附动力学 |
Adsorption for Cu2+ with Clay Based Porous Ceramics |
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| GUO Li-hua,SHEN Qian-qian,LIU Zhi-guo,ZHANG Ai-qin,WANG Shu-hua,JIA Hu-sheng.Adsorption for Cu2+ with Clay Based Porous Ceramics[J].Environmental Science and Technology,2011,34(10):171-173,181. |
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| Authors: | GUO Li-hua SHEN Qian-qian LIU Zhi-guo ZHANG Ai-qin WANG Shu-hua JIA Hu-sheng |
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| Institution: | 1.Key Laboratory of Interface Science and Engineering in Advanced Materials;2.School of Material Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China) |
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| Abstract: | Ceramics as excellent performance adsorption material was prepared by pore-forming method with clay as aggregate and vermiculite as modified agent.The adsorption properties were tested under laboratory conditions as a function of initial Cu2+ concentration,pH value and vermiculite addition.Results showed that the optimum conditions were vermiculite addition of 1% and initial pH of 5.When copper ion initial concentration was 20~100 mg/L,adsorption efficiency was 82%~ 62%,and adsorption time was 1.5~6 h.The adsorption kinetics showed that the process of Cu2+ biosorption onto porous ceramics could be divided into two stages,with the equilibrium isotherm well fitting Langmuir and Freundlich models. |
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| Keywords: | clay based porous ceramics adsorption properties Cu2+ adsorption kinetics |
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