| 纳米羟基磷灰石对Cu2+的吸附 |
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| 引用本文： | 朱婷婷,于振,吴柳明.纳米羟基磷灰石对Cu2+的吸附[J].济南大学学报(自然科学版),2011,25(2):142-145. |
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| 作者姓名： | 朱婷婷 于振 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-凝胶法制备纳米羟基磷灰石(n-HAP)吸附水溶液中的铜离子(Cu2+),研究反应时间、体系pH值和Cu2+初始浓度等因素对吸附行为的影响,并探讨吸附机理。结果表明:在溶液pH=4.5~7.5,n-HAP对Cu2+的吸附升高趋势近似线性关系;反应60 min时基本达到吸附平衡;pH>7.5时,溶液中Cu2+几乎完全去除,最大吸附量为51.28 mg/g。n-HAP对Cu2+有良好的吸附作用,吸附类型为Langmu ir等温吸附,吸附过程符合拟二级反应动力学方程。
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| 关 键 词： | n-HAP Cu2+ 吸附 |
Adsorption of Cu2+ on Nano-hydroxyapatite |
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| ZHU Ting-ting,YU Zhen,WU Liu-ming.Adsorption of Cu2+ on Nano-hydroxyapatite[J].Journal of Jinan University(Science & Technology),2011,25(2):142-145. |
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| Authors: | ZHU Ting-ting YU Zhen WU Liu-ming |
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| Institution: | ZHU Ting-ting,YU Zhen,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 technique was used to adsorb Cu2+ from aqueous solution.The effects of reaction time,pH and initial concentration of Cu2+ on the adsorption were investigated,and the adsorption mechanism was discussed.The results show that the adsorption quantity increases linearly from pH 4.5 to 7.5;the adsorption equilibrium can be achieved in 60min,when pH is higher than 7.5,Cu2+ is almost completely removed,and the maximum adsorption capacity is 51.28mg/g.n-HAP is an effective ... |
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| Keywords: | n-HAP Cu2+ |
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