Adsorption Characteristics of Cu(II) in the Presence of Surfactants on Natural Zeolites Treated Chemically and Thermally

가열 및 화학처리된 천연 제올라이트의 계면활성제 수용액 내에서 Cu(II)흡착특성

  • Sun, Y.S. (Korea Testing and Research Institute for Chemical Industry) ;
  • Kim, P.K. (Korea Testing and Research Institute for Chemical Industry)
  • Received : 1996.02.14
  • Accepted : 1996.08.12
  • Published : 1996.10.10

Abstract

Natural zeolites which were known to occur in sedimentary clinoptilolite, were treated by thermal and chemical methods, and their adsorption characteristics of Cu(II) were studied. Analyses by FT-IR, S. E. M, TGA/DSC, and XRD showed that the adsorption capacity of Cu(II) on the zeolite decreased gradually at the temperatures of above $400^{\circ}C$. The zeolites, which treated with NaOH and NaCl, show higher absorbility in acid solution. The adsorption rate of Cu(II) in the presence of surfactants(LAS, POE AE) on the thermally or chemically treated zeolites varied depending on pH, anion or nonion surfactants.

Keywords

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