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›› 2004, Vol. 4 ›› Issue (2): 141-145.

• 过程与工艺 • 上一篇    下一篇

磁性活性炭的制备与表征

单国彬,张冠东,田 青,官月平,刘会洲,安震涛   

  1. 中国科学院过程工程研究所分离工程与工程青年实验室
  • 出版日期:2004-04-20 发布日期:2004-04-20

Preparation and Characterization of Magnetic Activated Carbon

SHAN Guo-bin,ZHANG Guan-dong,TIAN Qing,GUAN Yue-ping,LIU Hui-zhou,AN Zhen-tao   

  1. 中国科学院过程工程研究所分离工程与工程青年实验室
  • Online:2004-04-20 Published:2004-04-20

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摘要： 探讨了负压浸渍法制备磁性活性炭的浸渍条件，浸渍溶液为油酸修饰的Fe3O4磁性凝胶均匀分散在正己烷溶剂中形成的磁性溶液. 通过对油酸修饰的磁性凝胶进行差热、热重和微热容分析确立了浸渍产物的热处理条件，考察了磁性溶液浓度、浸渍时间、浸渍温度对浸渍产物的影响，并采用X射线衍射对磁性活性炭的组份和结构进行了表征，采用磁强计测定了磁性活性炭的磁性能，用比表面、孔容测试技术比较了活性炭和磁性活性炭的比表面、孔体积和孔分布.

关键词: 磁性溶液, 负压浸渍, 活性炭

Abstract: The preparation conditions of magnetic activated carbon were studied by negative pressure impregnation. Impregnated solution was formed by dispersing uniformly magnetic gel in n-hexane. The thermal treatment conditions of the impregnation product were determined by the DTA-TG analysis. The effects of the impregnated solution concentration, impregnated time, impregnated temperature were investigated. The composition and configuration of the magnetic activated carbon prepared were characterized by XRD. The magnetic strength of the magnetic activated carbon was tested by VSM. The changes of specific area, pore volume and pore distribution pattern were analyzed by a specific area and pore volume analyzer between the activated carbon and the magnetic activated carbon.

Key words: magnetic solution, negative pressure impregnated, activated carbon