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磁性埃洛石对水溶液中盐酸土霉素的吸附

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张中杰, 王旭, 邱士鑫, 潘建明. 磁性埃洛石对水溶液中盐酸土霉素的吸附[J]. 环境工程学报, 2013, 7(10): 3921-3926.
引用本文: 张中杰, 王旭, 邱士鑫, 潘建明. 磁性埃洛石对水溶液中盐酸土霉素的吸附[J]. 环境工程学报, 2013, 7(10): 3921-3926.
shu
Zhang Zhongjie, Wang Xu, Qiu Shixin, Pan Jianming. Adsorption of oxytetracycline hydrochloride in aqueous solutions by magnetic halloysite composites[J]. Chinese Journal of Environmental Engineering, 2013, 7(10): 3921-3926.
Citation: Zhang Zhongjie, Wang Xu, Qiu Shixin, Pan Jianming. Adsorption of oxytetracycline hydrochloride in aqueous solutions by magnetic halloysite composites[J]. Chinese Journal of Environmental Engineering, 2013, 7(10): 3921-3926.
shu

磁性埃洛石对水溶液中盐酸土霉素的吸附

  • 1.

    长安大学环境科学与工程学院, 西安 710054

  • 2.

    江苏大学化学化工学院, 镇江 212013

  • 基金项目:

    中国教育部博士科研基金项目(20110205110014)

    中央高校基金(CHD2011TD021)

  • 中图分类号: X703

Adsorption of oxytetracycline hydrochloride in aqueous solutions by magnetic halloysite composites

  • 1.

    School of Environmental Science and Engineering, Chang'an University, Xi'an 710054, China

  • 2.

    School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China

  • Fund Project:

  • 摘要: 采用一种简便的方法对埃洛石纳米管进行加磁,得到的磁性埃洛石纳米管(MHNTs)利用X射线衍射仪(XRD)、透射电子显微镜(TEM)、振动样品磁强计(VSM)和原子吸收光谱仪(AAS)进行表征,结果表明,MHNTs具有很强的磁性性能(Ms=34.02 emu/g)以及较低损失磁性粒子的性能。制备的MHNTs作为吸附剂吸附水溶液中的盐酸土霉素,并且探索反应温度、溶液pH和起始浓度等对MHNTs吸附盐酸土霉素性能的影响。研究表明,Langmuir等温线模型更优于Freundlich等温线模型,其动力学的研究结果利用拟二阶方程能够很好地进行说明。此外,MHNTs作为吸附剂经过3次的重复使用吸附能力没有明显的降低。
    Abstract: The halloysite/CoFe2O4 magnetic composites (MHNTs) were prepared by an effective way. The obtained composites were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), vibrating sample magnetometer (VSM) and atomic absorption spectrometer (AAS). The results indicated that MHNTs exhibited strongly magnetic property (Ms=34.02 emu/g) and low leakage property. Then the MHNTs were employed as adsorbents for the fast removal of oxytetracycline hydrochloride(OC-HCl) from aqueous solutions. The adsorption performances of MHNTs were investigated by batch mode experiments with respect to pH, temperature and initial concentration. The Langmuir isotherm model was fitted to the equilibrium data better than the Freundlich model and the kinetic properties were well described by the pesudo-second-order equation. In addition, the resulting composites reusability without obviously deterioration in performance was demonstrated by at least three repeated cycles.
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出版历程
  • 收稿日期:  2012-09-19
  • 刊出日期:  2013-10-12
张中杰, 王旭, 邱士鑫, 潘建明. 磁性埃洛石对水溶液中盐酸土霉素的吸附[J]. 环境工程学报, 2013, 7(10): 3921-3926.
引用本文: 张中杰, 王旭, 邱士鑫, 潘建明. 磁性埃洛石对水溶液中盐酸土霉素的吸附[J]. 环境工程学报, 2013, 7(10): 3921-3926.
shu
Zhang Zhongjie, Wang Xu, Qiu Shixin, Pan Jianming. Adsorption of oxytetracycline hydrochloride in aqueous solutions by magnetic halloysite composites[J]. Chinese Journal of Environmental Engineering, 2013, 7(10): 3921-3926.
Citation: Zhang Zhongjie, Wang Xu, Qiu Shixin, Pan Jianming. Adsorption of oxytetracycline hydrochloride in aqueous solutions by magnetic halloysite composites[J]. Chinese Journal of Environmental Engineering, 2013, 7(10): 3921-3926.
shu

磁性埃洛石对水溶液中盐酸土霉素的吸附

  • 1. 长安大学环境科学与工程学院, 西安 710054
  • 2. 江苏大学化学化工学院, 镇江 212013
  • 收稿日期:  2012-09-19
基金项目:

中国教育部博士科研基金项目(20110205110014)

中央高校基金(CHD2011TD021)

摘要: 采用一种简便的方法对埃洛石纳米管进行加磁,得到的磁性埃洛石纳米管(MHNTs)利用X射线衍射仪(XRD)、透射电子显微镜(TEM)、振动样品磁强计(VSM)和原子吸收光谱仪(AAS)进行表征,结果表明,MHNTs具有很强的磁性性能(Ms=34.02 emu/g)以及较低损失磁性粒子的性能。制备的MHNTs作为吸附剂吸附水溶液中的盐酸土霉素,并且探索反应温度、溶液pH和起始浓度等对MHNTs吸附盐酸土霉素性能的影响。研究表明,Langmuir等温线模型更优于Freundlich等温线模型,其动力学的研究结果利用拟二阶方程能够很好地进行说明。此外,MHNTs作为吸附剂经过3次的重复使用吸附能力没有明显的降低。

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