Fundamental Studies on the Characteristics of the Surface Electrokinetic Behavior of Particulate Matter as an Extensive Property

입자성 물질의 크기성질로서의 표면 전기적 특성 규명에 대한 기초연구

  • O, Se-Jin (Department of Environmental Science and Engineering, Ewha Womans University) ;
  • Kim, Dong-Su (Department of Environmental Science and Engineering, Ewha Womans University)
  • 오세진 (이화여자대학교 환경공학과) ;
  • 김동수 (이화여자대학교 환경공학과)
  • Received : 2010.02.03
  • Accepted : 2010.06.04
  • Published : 2010.06.30

Abstract

Generally, electrokinetic potential has been considered as an intensive property. In other words, electrokinetic potential is not affected by the amount of particulate matter. Montmorillonite, one of essential inorganic matter, was chosen to measure electrokinetic potential. The result of electrokinetic potential measuring experiment showed that the value observed to decrease as the amount of montmorillonite clay increased. This is due to the fact that total ions that adsorbed per unit mass were decreased as the amount of montmorillonite was increased. As a result, electrokinetic potential is considered as an extensive property. By using these results, total interaction energy of suspension was also checked, and revealed that total interaction energy was decreased as the amount of montmorillonite increased.

Acknowledgement

Supported by : 한국연구재단

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