工业水处理 ›› 2020, Vol. 40 ›› Issue (2): 23-27. doi: 10.11894/iwt.2018-1077

• 试验研究 • 上一篇    下一篇

CPC改性活性炭电极电吸附除砷性能研究

刘晓艳1(),王一楠1,陆谢娟2,*(),陈才1,吴晓晖2,毛娟2   

  1. 1. 武汉科技大学城市建设学院, 湖北武汉 430065
    2. 华中科技大学环境科学与工程学院, 湖北武汉 430074
  • 收稿日期:2019-10-18 出版日期:2020-02-20 发布日期:2020-02-22
  • 通讯作者: 陆谢娟 E-mail:969468856@qq.com;634814525@qq.com
  • 作者简介:刘晓艳(1972-),硕士,副教授。电话:15007105499, E-mail:969468856@qq.com
  • 基金资助:
    国家重点研发计划项目新疆农垦地区农村饮用水与污水处理关键技术研究与示范(2016YFC0400704)

Study on the removal of arsenic by CPC modified activated carbon electrode

Xiaoyan Liu1(),Yinan Wang1,Xiejuan Lu2,*(),Cai Chen1,Xiaohui Wu2,Juan Mao2   

  1. 1. School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China
    2. School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2019-10-18 Online:2020-02-20 Published:2020-02-22
  • Contact: Xiejuan Lu E-mail:969468856@qq.com;634814525@qq.com
  • Supported by:
    国家重点研发计划项目新疆农垦地区农村饮用水与污水处理关键技术研究与示范(2016YFC0400704)

摘要:

采用氯代十六烷基吡啶(CPC)对活性炭(PAC)进行改性,以提高活性炭电极的电化学性能和吸附性能。结果表明,以CPC-PAC-1 mm/5 h为电极材料,以m(CB):m(PVDF):m(CPC-PAC)=15:5:80制备的改性活性炭电极(CB/PVDF/CPC-PAC-15/5/80电极)的比电容为123.8 F/g,较未改性PAC电极的比电容(46 F/g)提升了169%。对100 μg/L砷溶液的吸附结果表明,相比未改性PAC电极,CB/PVDF/CPC-PAC-15/5/80电极对砷离子的吸附量提升了29%,出水砷仅为7 μg/L。

关键词: 电容去离子, 氯代十六烷基吡啶, 改性活性炭, 电吸附砷

Abstract:

Hexadecyl pyridine chloride(CPC) was used to modify the activated carbon to improve the electrochemical properties and adsorption properties of the activated carbon electrode. The results showed that the specific capacitance of the modified activated carbon electrode prepared with CPC-PAC-1 mm/5 h as electrode material and m(CB):m(PVDF):m(CPC-PAC) at 15:5:80 was 123.8 F/g, which was 169% higher than that of the unmodified PAC electrode (46 F/g). Adsorption experiments were conducted in 100 μg/L arsenic solution. Results showed that the adsorption amount of arsenic ions on CB/PVDF/CPC-PAC-15/5/80 electrode was 29% higher than that on unmodified PAC electrode. Besides, the arsenic content in effluents was only 7 μg/L.

Key words: capacitive deionization, hexadecyl pyridine chloride(CPC), modified activated carbon, electrosorption of arsenic

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