| 纳米羟基磷灰石对氟离子的吸附 |
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| 引用本文： | 赵延杰,张蒋维,迟万凯,张美华,吴柳明.纳米羟基磷灰石对氟离子的吸附[J].济南大学学报(自然科学版),2011,25(2):138-141. |
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| 作者姓名： | 赵延杰 张蒋维 迟万凯 张美华 吴柳明 |
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| 作者单位： | 济南大学,资源与环境学院,山东,济南,250022 |
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| 摘 要： | 用溶胶-凝胶法合成纳米羟基磷灰石(n-HAP)吸附水溶液中的氟离子(F-),考察反应时间、体系pH值和F-初始浓度等因素对吸附作用的影响,探讨吸附机理。结果表明:吸附平衡出现在反应进行120 min时,吸附速率符合拟二级动力学方程;吸附量在pH=6时达到10.55 mg/g,与初始c(F-)呈正相关关系;n-HAP是F-的有效吸附剂,对F-的吸附属Langmuir等温吸附模型。
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| 关 键 词： | 纳米羟基磷灰石 氟离子 吸附 |
Adsorption of Fluoride from Aqueous Solution by Nano-hydroxyapatite |
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| ZHAO Yan-jie,ZHANG Jiang-wei,CHI Wan-kai,ZHANG Mei-hua,WU Liu-ming.Adsorption of Fluoride from Aqueous Solution by Nano-hydroxyapatite[J].Journal of Jinan University(Science & Technology),2011,25(2):138-141. |
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| Authors: | ZHAO Yan-jie ZHANG Jiang-wei CHI Wan-kai ZHANG Mei-hua WU Liu-ming |
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| Institution: | ZHAO Yan-jie,ZHANG Jiang-wei,CHI Wan-kai,ZHANG Mei-hua,WU Liu-ming(School of Resources and Environment,University of Jinan,Jinan 250022,China) |
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| Abstract: | Nano-hydroxyapatite synthesized by sol-gel method was used to remove fluoride ions from aqueous solution.The adsorption mechanism and the effect of various parameters such as adsorption time,the pH value and initial fluoride concentration on the adsorption efficiency were investigated.The research results show that the adsorption equilibrium is achieved in 120min and the adsorption kinetics can be described by pseudo-second-order reaction model;the optimal pH value is about 6 and the maximum adsorption capa... |
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| Keywords: | nano-hydroxyapatite fluoride adsorption |
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