| 纳米四氧化三铁吸附水溶液中砷的研究 |
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| 引用本文： | 柴多里,储志兵,杨保俊,张柠.纳米四氧化三铁吸附水溶液中砷的研究[J].硅酸盐学报,2011,39(3):419-423. |
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| 作者姓名： | 柴多里 储志兵 杨保俊 张柠 |
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| 作者单位： | 合肥工业大学化工学院,合肥,230009 |
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| 基金项目： | 安徽高校省级自然科学研究重点计划项目，合肥工业大学博士基金 |
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| 摘 要： | 采用水热法合成出纳米Fe3O4,借助X射线衍射、透射电子显微镜和比表面积分析等对其进行了表征.结果表明:所制备的样品为面心立方晶型的Fe3O4纳米薄片,比表面积为35.25m2/g.用所制备的Fe3O4样品作为吸附剂去除水溶液中的五价砷,通过分光光度法计算出其去除率接近90%.通过单因素实验对所合成Fe3O4样品吸附去...
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| 关 键 词： | 砷 四氧化三铁 吸附 |
Adsorption of Arsenic from Aqueous Solution with Nano-Particles of Magnetite Black |
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| CHAI Duoli,CHU Zhibing,YANG Baojun,ZHANG Ning.Adsorption of Arsenic from Aqueous Solution with Nano-Particles of Magnetite Black[J].Journal of The Chinese Ceramic Society,2011,39(3):419-423. |
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| Authors: | CHAI Duoli CHU Zhibing YANG Baojun ZHANG Ning |
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| Affiliation: | (School of Chemical Engineering,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | Magnetite black (Fe3O4) nano-particles were synthesized by a hydrothermal process, and characterized by X-ray powder diffraction (XRD), transmission electron microscope (TEM) and Brunauer-Emmett-Teller method of specific surface area. There sults show that the as-synthesized particles with the specific surface area of 35.25 m2/g are face-centered cubic crystals with the morphology of nano-sheet. The synthesized Fe3O4 particles are used as an adsorbent to remove As (Ⅴ) in aqueous solution. The removal rate is approximately 90％. The adsorption effect of the Fe3O4 samples on arsenic (Ⅴ) in the solution is analysed. The correlated dynamic equations are proposed. It is indicated that the adsorption effect varies with the adsorption time and the initial As (Ⅴ) concentration, which follows the Langmuir model and the Freundlich model, respectively. |
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| Keywords: | arsenic magnetite black adsorption |
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