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介孔纳米γ-Al2O3对稀土元素镧、铈的吸附性能

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王洋, 张雪峰, 张保生, 林忠, 吕保义. 介孔纳米γ-Al2O3对稀土元素镧、铈的吸附性能[J]. 环境工程学报, 2012, 6(12): 4519-4524.
引用本文: 王洋, 张雪峰, 张保生, 林忠, 吕保义. 介孔纳米γ-Al2O3对稀土元素镧、铈的吸附性能[J]. 环境工程学报, 2012, 6(12): 4519-4524.
shu
Wang Yang, Zhang Xuefeng, Zhang Baosheng, Lin Zhong, Lü Baoyi. Adsorption performance of mesoporous nanometer γ-Al2O3 to rare earth elements lanthanum and cerium[J]. Chinese Journal of Environmental Engineering, 2012, 6(12): 4519-4524.
Citation: Wang Yang, Zhang Xuefeng, Zhang Baosheng, Lin Zhong, Lü Baoyi. Adsorption performance of mesoporous nanometer γ-Al2O3 to rare earth elements lanthanum and cerium[J]. Chinese Journal of Environmental Engineering, 2012, 6(12): 4519-4524.
shu

介孔纳米γ-Al2O3对稀土元素镧、铈的吸附性能

  • 1.

    内蒙古科技大学能源与环境学院,包头 014010

  • 2.

    内蒙古科技大学数理与生物工程学院,包头 014010

  • 3.

    包头市环境保护科研所,包头 014010

  • 4.

    包头市环境监测站,包头 014010

  • 5.

    包头市环境科学研究院,包头 014010

  • 基金项目:

    国家环境保护部环保公益性行业科研专项项目(200909032)

    包头市园区建设(2008Y2016)

  • 中图分类号: X703

Adsorption performance of mesoporous nanometer γ-Al2O3 to rare earth elements lanthanum and cerium

  • 1.

    College of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, China

  • 2.

    College of Mathematical and Biological Engineering, University of Science and Technology of The Inner Mongol, Baotou 014010, China

  • 3.

    Baotou Institute of Environmental Protection Science, Baotou 014010, China

  • 4.

    Baotou Environmental Monitoring Station, Baotou 014010, China

  • 5.

    Baotou Environmental Science Research Institute,Baotou 014010,China

  • Fund Project:

  • 摘要: 以介孔纳米γ-Al2O3为吸附材料,重点研究了吸附剂投加量、溶液pH、吸附时间及温度对介孔纳米γ-Al2O3吸附稀土元素镧、铈的影响。通过正交实验优选出介孔纳米γ-Al2O3对稀土元素镧铈吸附的最优参数,采用10 mg/L的La3+、Ce4+标准溶液,选择投加量、pH、吸附时间为影响因素,进行3因素3水平的正交实验。通过正交实验与单因素实验综合分析表明最佳实验方案为:投加量为0.20 g,pH为7,吸附时间为15 min。在初始浓度为10~100 mg/L时,介孔纳米γ-Al2O3对La3+、Ce4+的吸附符合Langmuir等温吸附式。拟合得到的理论饱和吸附量分别为22.32 mg/g和23.75 mg/g。
    Abstract: With mesoporous nanometer γ-Al2O3 as the absorbent,the effects of adsorbent dosage, pH,contact time, adsorption temperature were studied. Parameters for mesoporous nanometer γ-Al2O3 of rare earth elements lanthanum and cerium adsorption were optimized by orthogonal experimental method. With the 10 mg/L initial lanthanum and cerium concentration as the original solution,the adsorbent dosage, pH and contact time as variable factors were selected by orthogonal test. Compared with the orthogonal experiment and single factor experiment, the best scheme was found:adsorbent dosage of 0.20 g, pH of 7 and contact time of 15 min.With the initial concentration range of 10~100 mg/L, mesoporous nanometer γ-Al2O3 for La3+ and Ce4+ species fitted the Langmiur adsorption isothermal model.The saturated extents of adsorption of La3+ and Ce4+ were 22.32 mg/g and 23.75 mg/g, respectively.
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  • 收稿日期:  2012-01-19
  • 刊出日期:  2012-12-07
王洋, 张雪峰, 张保生, 林忠, 吕保义. 介孔纳米γ-Al2O3对稀土元素镧、铈的吸附性能[J]. 环境工程学报, 2012, 6(12): 4519-4524.
引用本文: 王洋, 张雪峰, 张保生, 林忠, 吕保义. 介孔纳米γ-Al2O3对稀土元素镧、铈的吸附性能[J]. 环境工程学报, 2012, 6(12): 4519-4524.
shu
Wang Yang, Zhang Xuefeng, Zhang Baosheng, Lin Zhong, Lü Baoyi. Adsorption performance of mesoporous nanometer γ-Al2O3 to rare earth elements lanthanum and cerium[J]. Chinese Journal of Environmental Engineering, 2012, 6(12): 4519-4524.
Citation: Wang Yang, Zhang Xuefeng, Zhang Baosheng, Lin Zhong, Lü Baoyi. Adsorption performance of mesoporous nanometer γ-Al2O3 to rare earth elements lanthanum and cerium[J]. Chinese Journal of Environmental Engineering, 2012, 6(12): 4519-4524.
shu

介孔纳米γ-Al2O3对稀土元素镧、铈的吸附性能

  • 1. 内蒙古科技大学能源与环境学院,包头 014010
  • 2. 内蒙古科技大学数理与生物工程学院,包头 014010
  • 3. 包头市环境保护科研所,包头 014010
  • 4. 包头市环境监测站,包头 014010
  • 5. 包头市环境科学研究院,包头 014010
  • 收稿日期:  2012-01-19
基金项目:

国家环境保护部环保公益性行业科研专项项目(200909032)

包头市园区建设(2008Y2016)

摘要: 以介孔纳米γ-Al2O3为吸附材料,重点研究了吸附剂投加量、溶液pH、吸附时间及温度对介孔纳米γ-Al2O3吸附稀土元素镧、铈的影响。通过正交实验优选出介孔纳米γ-Al2O3对稀土元素镧铈吸附的最优参数,采用10 mg/L的La3+、Ce4+标准溶液,选择投加量、pH、吸附时间为影响因素,进行3因素3水平的正交实验。通过正交实验与单因素实验综合分析表明最佳实验方案为:投加量为0.20 g,pH为7,吸附时间为15 min。在初始浓度为10~100 mg/L时,介孔纳米γ-Al2O3对La3+、Ce4+的吸附符合Langmuir等温吸附式。拟合得到的理论饱和吸附量分别为22.32 mg/g和23.75 mg/g。

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