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碳纳米管溶胶的制备及其去除水中异狄氏剂的研究

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巩学敏, 彭先佳, 栾兆坤. 碳纳米管溶胶的制备及其去除水中异狄氏剂的研究[J]. 环境工程学报, 2007, 1(11): 6-9.
引用本文: 巩学敏, 彭先佳, 栾兆坤. 碳纳米管溶胶的制备及其去除水中异狄氏剂的研究[J]. 环境工程学报, 2007, 1(11): 6-9.
shu
Gong Xuemin, Peng Xianjia, Luan Zhaokun. Preparation of carbon nanotubes sol and its application for removal of endrin from water[J]. Chinese Journal of Environmental Engineering, 2007, 1(11): 6-9.
Citation: Gong Xuemin, Peng Xianjia, Luan Zhaokun. Preparation of carbon nanotubes sol and its application for removal of endrin from water[J]. Chinese Journal of Environmental Engineering, 2007, 1(11): 6-9.
shu

碳纳米管溶胶的制备及其去除水中异狄氏剂的研究

  • 1.

    中国科学院生态环境研究中心环境水质学国家重点实验室，北京 100085；
    2.中国矿业大学（北京） 化学与环境工程学院，北京 100083

  • 基金项目:

    国家自然科学基金资助项目（20607027

    50538090）

  • 中图分类号: O647.31+4

Preparation of carbon nanotubes sol and its application for removal of endrin from water

  • 1.

    State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085；2. School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083

  • Fund Project:

摘要

  • 摘要: 采用强酸表面氧化法对碳纳米管表面进行处理，促进碳纳米管在水中的分散，制备碳纳米管溶胶，用于去除水中低浓度持久性有机污染物异狄氏剂。扫描电镜观测表明，氧化后的碳纳米管团簇被分散开，碳纳米管被打断。碳纳米管溶胶对异狄氏剂的吸附性能研究表明，制备的碳纳米管溶胶对异狄氏剂吸附去除效能优于原始碳纳米管，优化的pH值为6，此时碳纳米管溶胶对18 μg/L异狄氏剂去除率达到100%；水中的腐殖质提高了吸附去除效能；碳纳米管溶胶对异狄氏剂的吸附等温线呈线性,碳纳米管溶胶的吸附性能优于原始碳纳米管吸附性能。吸附去除后，溶胶态碳纳米管以0.05 mmol/L氯化铝从水中沉淀分离。
    Abstract: Carbon nanotubes (CNTs) sol was prepared by oxidation using strong acid and used for removal of low concentration endrin, a kind of persistent organic pollutants (POPs). Scanning electron microscopy observation shows that, after oxidation, the CNTs clusters were dispersed and the tubes were broken up. The adsorption experimental results show that the CNTs sol has good adsorption properties for removal of endrin. The optimized pH is 6 and the removal efficiency of CNTs sol from 18 μg/L endrin solution reaches 100%. Humic substance in water enhances the removal. The adsorption isotherm of endrin to CNTs sol is linear and the removal efficiency of CNTs sol is higher than that of as-prepared CNTs. After adsorption, the dispersed CNTs can be separated from water using 0.05 mmol/L AlCl3.
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出版历程
巩学敏, 彭先佳, 栾兆坤. 碳纳米管溶胶的制备及其去除水中异狄氏剂的研究[J]. 环境工程学报, 2007, 1(11): 6-9.
引用本文: 巩学敏, 彭先佳, 栾兆坤. 碳纳米管溶胶的制备及其去除水中异狄氏剂的研究[J]. 环境工程学报, 2007, 1(11): 6-9.
shu
Gong Xuemin, Peng Xianjia, Luan Zhaokun. Preparation of carbon nanotubes sol and its application for removal of endrin from water[J]. Chinese Journal of Environmental Engineering, 2007, 1(11): 6-9.
Citation: Gong Xuemin, Peng Xianjia, Luan Zhaokun. Preparation of carbon nanotubes sol and its application for removal of endrin from water[J]. Chinese Journal of Environmental Engineering, 2007, 1(11): 6-9.
shu

碳纳米管溶胶的制备及其去除水中异狄氏剂的研究

  • 1. 中国科学院生态环境研究中心环境水质学国家重点实验室，北京 100085；
    2.中国矿业大学（北京） 化学与环境工程学院，北京 100083
基金项目:

国家自然科学基金资助项目（20607027

50538090）

摘要: 采用强酸表面氧化法对碳纳米管表面进行处理，促进碳纳米管在水中的分散，制备碳纳米管溶胶，用于去除水中低浓度持久性有机污染物异狄氏剂。扫描电镜观测表明，氧化后的碳纳米管团簇被分散开，碳纳米管被打断。碳纳米管溶胶对异狄氏剂的吸附性能研究表明，制备的碳纳米管溶胶对异狄氏剂吸附去除效能优于原始碳纳米管，优化的pH值为6，此时碳纳米管溶胶对18 μg/L异狄氏剂去除率达到100%；水中的腐殖质提高了吸附去除效能；碳纳米管溶胶对异狄氏剂的吸附等温线呈线性,碳纳米管溶胶的吸附性能优于原始碳纳米管吸附性能。吸附去除后，溶胶态碳纳米管以0.05 mmol/L氯化铝从水中沉淀分离。

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