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羟基铝及复合改性蒙脱石对As(V)的去除性能

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任晓惠, 罗汉金, 张子龙, 胡冰洁, 陈绮恩. 羟基铝及复合改性蒙脱石对As(V)的去除性能[J]. 环境工程学报, 2013, 7(5): 1702-1708.
引用本文: 任晓惠, 罗汉金, 张子龙, 胡冰洁, 陈绮恩. 羟基铝及复合改性蒙脱石对As(V)的去除性能[J]. 环境工程学报, 2013, 7(5): 1702-1708.
shu
Ren Xiaohui, Luo Hanjin, Zhang Zilong, Hu Bingjie, Chen Qien. Adsorption characteristics of As(V) using aluminium hydroxypolycation and inorganic-organic pillared montmorillonite[J]. Chinese Journal of Environmental Engineering, 2013, 7(5): 1702-1708.
Citation: Ren Xiaohui, Luo Hanjin, Zhang Zilong, Hu Bingjie, Chen Qien. Adsorption characteristics of As(V) using aluminium hydroxypolycation and inorganic-organic pillared montmorillonite[J]. Chinese Journal of Environmental Engineering, 2013, 7(5): 1702-1708.
shu

羟基铝及复合改性蒙脱石对As(V)的去除性能

  • 1.

    华南理工大学环境科学与能源学院,广州 510006

  • 2.

    工业聚集区污染控制与生态修复教育部重点实验室,广州510006

  • 3.

    雅培(广州)营养品有限公司,广州 510530

  • 4.

    佛山市南海区桂城中学南海国际教育中心,佛山 528200

  • 基金项目:

    国家自然科学基金资助项目(40973074)

  • 中图分类号: X703

Adsorption characteristics of As(V) using aluminium hydroxypolycation and inorganic-organic pillared montmorillonite

  • 1.

    College of Environment and Energy, South China Univercity of Technology, Guangzhou 510006, China

  • 2.

    Key Labaratory of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, China

  • 3.

    Abbot(GZ) Nutritionals Co. Ltd., Guangzhou 510530, China

  • 4.

    Nanhai International Education Center, Gui Cheng Senior High School, Foshan 528200, China

  • Fund Project:

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  • 摘要: 采用无机羟基铝及阳离子表面活性剂十六烷基三甲基溴化铵对天然蒙脱石进行无机及复合改性。在吸附过程中研究了反应时间、投加量和pH等变量对吸附性能的影响,同时进行吸附动力学及吸附等温线研究,吸附规律符合Langmuir等温方程式。采用X射线衍射、X射线荧光、傅里叶红外光谱等表征手段对未改性及改性蒙脱石进行性能表征。研究结果表明,羟基铝及复合改性蒙脱石对As(V)具有良好的吸附性能,在pH为4～10,初始砷浓度为2 mg/L,改性蒙脱石对As(V)的去除率接近99%。吸附机理主要为羟基铝表面络合吸附和静电吸附。
    Abstract: The inorganic and inorganic-organic pillared montmorillonite were prepared using aluminium hydroxypolycation and cetyltrimethyl ammonium bromide (CTMAB). The effects of reaction time, dosage, pH on adsorption efficiency were investigated, as well as the adsorption isotherms and kinetics. The adsorption isotherms fitted well with Langmuir isothermal equation. The characteristics of natural and modified montmorillonite were characterized by X-ray diffraction (XRD), X-ray fluorescence (XRF), Fourier transform infrared spectrum (FTIR), et al. The results showed that polymeric Al and inorganic-organic modified montmorillonite presented good adsorption towards As(V), under the condition with pH of 4～10 and initial As(V) concentration of 2 mg/L, the adsorption efficiency could exceed 99%. The sorption mechanisms were surface adsorption and electrostatic adhesion.
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  • 收稿日期:  2012-06-06
  • 刊出日期:  2013-05-22
任晓惠, 罗汉金, 张子龙, 胡冰洁, 陈绮恩. 羟基铝及复合改性蒙脱石对As(V)的去除性能[J]. 环境工程学报, 2013, 7(5): 1702-1708.
引用本文: 任晓惠, 罗汉金, 张子龙, 胡冰洁, 陈绮恩. 羟基铝及复合改性蒙脱石对As(V)的去除性能[J]. 环境工程学报, 2013, 7(5): 1702-1708.
shu
Ren Xiaohui, Luo Hanjin, Zhang Zilong, Hu Bingjie, Chen Qien. Adsorption characteristics of As(V) using aluminium hydroxypolycation and inorganic-organic pillared montmorillonite[J]. Chinese Journal of Environmental Engineering, 2013, 7(5): 1702-1708.
Citation: Ren Xiaohui, Luo Hanjin, Zhang Zilong, Hu Bingjie, Chen Qien. Adsorption characteristics of As(V) using aluminium hydroxypolycation and inorganic-organic pillared montmorillonite[J]. Chinese Journal of Environmental Engineering, 2013, 7(5): 1702-1708.
shu

羟基铝及复合改性蒙脱石对As(V)的去除性能

  • 1.  华南理工大学环境科学与能源学院,广州 510006
  • 2.  工业聚集区污染控制与生态修复教育部重点实验室,广州510006
  • 3.  雅培(广州)营养品有限公司,广州 510530
  • 4.  佛山市南海区桂城中学南海国际教育中心,佛山 528200
  • 收稿日期:  2012-06-06
基金项目:

国家自然科学基金资助项目(40973074)

摘要: 采用无机羟基铝及阳离子表面活性剂十六烷基三甲基溴化铵对天然蒙脱石进行无机及复合改性。在吸附过程中研究了反应时间、投加量和pH等变量对吸附性能的影响,同时进行吸附动力学及吸附等温线研究,吸附规律符合Langmuir等温方程式。采用X射线衍射、X射线荧光、傅里叶红外光谱等表征手段对未改性及改性蒙脱石进行性能表征。研究结果表明,羟基铝及复合改性蒙脱石对As(V)具有良好的吸附性能,在pH为4～10,初始砷浓度为2 mg/L,改性蒙脱石对As(V)的去除率接近99%。吸附机理主要为羟基铝表面络合吸附和静电吸附。

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