Clays and Clay Minerals

, Volume 39, Issue 6, pp 634–641 | Cite as

Adsorption of Chlorinated Phenols from Aqueous Solution By Surfactant-Modified Pillared Clays

  • Laurent J. Michot
  • Thomas J. Pinnavaia


New pillared clay-based adsorbents have been prepared by incorporating a nonionic surfactant of general formula C12–14H25–29O(CH2CH2O)5H (commercial name, Tergitol 15S-5), during the synthesis of the aluminum hydroxide pillaring reagent. Different loadings of surfactant have been examined. The presence of the surfactant enhanced the adsorption capacity of the clay toward 3-monochlorophenol from aqueous solution. On the basis of adsorption results for a series of clays with increasing surfactant loadings, the best adsorbent was obtained at a surfactant loading of 255 mg/g of clay. At this loading, the surfactant occupies the micropores, as well as the mesopores and the external surfaces of the pillared clay. Analysis of the adsorption isotherms for 3-monochlorophenol, 3,5-dichlorophenol, 3,4,5-trichlorophenol and pentachlorophenol at different pH shows that the most energetic adsorption sites are the surfactant-occupied micropores between pillars. Additional binding of chlorinated phenols occurs at surfactant sites on external surfaces and mesopores. Upon calcination at 500°C, the clay is converted to a conventional alumina-pillared clay with a basal spacing near 16 Å. This calcined product can be reused as an adsorbent for chlorinated phenols by readsorbing fresh surfactant. The recycled adsorbent exhibits performance properties comparable to the original adsorbent. These results demonstrate the feasibility of utilizing a surfactant-modified pillared clay as a recyclable adsorbent and combustion catalyst for environmental pollutants.

Key Words

Adsorption Alumina-pillared clay Chlorinated phenols Tergitol 


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  1. Bottero, J. Y., Axelos, M. A. V., Tchoubar, D., Cases, J. M., Fripiat, J. J., and Fiessinger, F. (1987) Mechanism of formation of aluminum trihydroxide from Keggin Al13 polymers: J. Coll. Interface Sci. 117, 47–57.CrossRefGoogle Scholar
  2. Boyd, S. A. and Mikeseil, M. (1989) Reactions of chlorophenols in soils: in Reactions and Movements of Organic Chemicals in Soils, B. L. Sawhney, ed., Soil Science Soc. Amer. Spec. Pub., Madison, Wisconsin, 209–228.Google Scholar
  3. Boyd, S. A. and Mortland, M. M. (1985) Manipulating the activities of immobilized enzymes with different organicsmectite complexes: Experientia 41, 1564–1566.CrossRefGoogle Scholar
  4. Boyd, S. A. and Mortland, M. M. (1986) Selective effects of smectite-organic complexes on the activities of immobilized enzymes: J. Mol. Catalysis 34, 1–8.CrossRefGoogle Scholar
  5. Boyd, S. A., Shaobai, S., Lee, J. F., and Mortland, M. M. (1988) Pentachlorophenol sorption by organo-clays: Clays & Clay Minerals 36, 125–130.CrossRefGoogle Scholar
  6. Cases, J. M. (1979) Adsorption des tensio-actifs à l’interface solide-liquide: Thermodynamique et influence de l’hétéro-généité des adsorbants: Bull. Mineral. 102, 684–707.Google Scholar
  7. Cases, J. M. and Mutaftshiev, B. (1968) Adsorption et condensation des chlorhydrates d’alkylamines à l’interface solide-liquide: Surf. Sci. 9, 57–72.CrossRefGoogle Scholar
  8. Chapman, P. M., Romberg, G. P., and Vigers, C. A. (1982) Design of monitoring studies for priority pollutants: J. Water Pollution Control Fed. 54, 292–297.Google Scholar
  9. Chiou, C. T., Peters, L. J., and Freed, V.H. (1979) A physical concept of soil-water equilibria for non-ionic compounds: Science 213, 684–685.CrossRefGoogle Scholar
  10. Chiou, C. T., Porter, P. E., and Schmedding, D. W. (1983) Partition equilibria of non-ionic organic compounds between soil organic matter and water: Environ. Sci. Technol. 17, 227–231.CrossRefGoogle Scholar
  11. Fahey, D. R., Williams, K. A., Harris, R. J., and Stapp, P. R. (1989) Preparation of pillared clay: U.S. Patent 4 845 066.Google Scholar
  12. Garwood, G. A., Mortland, M. M., and Pinnavaia, T. J. (1983) Immobilization of glucose oxidase on montmorillonite clay: Hydrophobic and ionic modes of binding: J. Mol. Catalysis 22, 153–163.CrossRefGoogle Scholar
  13. Guymont, F. J. (1980) in Activated Carbon Adsorption of Organics from the Aqueous Phase Vol. 2, I. H. Suffet and M. J. McGuire, eds. Ann Arbor Science, Ann Arbor, Michigan, Ch. 23.Google Scholar
  14. Landau, S. D. (1984) Physical and catalytic properties of hydroxy-metal interlayered smectite minerals: Ph.D. thesis, Michigan State University, East Lansing, Michigan.Google Scholar
  15. McBride, M. B., Pinnavaia, T. J., and Mortland, M. M. (1977) Adsorption of aromatic molecules by clays in aqueous suspension: Adv. Environ. Sci. Technol. 8, 145–154.Google Scholar
  16. Mortland, M. M. (1970) Clay-organic complexes and interactions: Adv. Agron. 22, 75–117.CrossRefGoogle Scholar
  17. Mortland, M. M. (1986) Mechanisms of adsorption of non-humic organic species by clays: in Intercations of Soil Minerals with Natural Organics and Microbes, P. M. Huang, and M. Schnitzer, eds. Soil Sci. Soc. Amer., Madison, Wisconsin, 59–76.Google Scholar
  18. Mortland, M. M., Shaobai, S., and Boyd, S. A. (1986) Clayorganic complexes as adsorbents for phenol and chlorophenol: Clays & Clay Minerals 34, 581–585.CrossRefGoogle Scholar
  19. Rakotonarivo, E., Bottero, J. Y., Thomas, F., Poirier, J. E., and Cases, J. M. (1988) Electrochemical modelling of freshly precipitated aluminum hydroxide-electrolyte interface: Colloids and Surfaces 33, 191–207.CrossRefGoogle Scholar
  20. Srinivasan, K. R. and Fogler, S. H. (1990a) Use of inorganoorgano-clays in the removal of priority pollutants from industrial wastewaters: Structural aspects: Clays & Clay Minerals 38, 277–286.CrossRefGoogle Scholar
  21. Srinivasan, K. R. and Fogler, S. H. (1990b) Use of inorganoorgano-clays in the removal of priority pollutants from industrial wastewaters: Adsorption of benzo(a)pyrene and chlorophenols from aqueous solutions: Clays & Clay Minerals 38, 287–293.CrossRefGoogle Scholar
  22. Suffet, I. H., and McGuire, M. J. (1980) Activated Carbon Adsorption of Organics from the Aqueous Phase: Ann Arbor Science, Ann Arbor, Michigan.Google Scholar
  23. Theng, B. K. G. (1974) The Chemistry of Clay-Organic Reactions: Wiley, New York, 343 pp.Google Scholar
  24. Wolf, T. A., Demirel, T., and Baumann, R. E. (1986) Adsorption of organic pollutants on montmorillonite treated with amines: J. Water Pollution Control Fed. 58, 68–76.Google Scholar
  25. Zielke, R. C. and Pinnavaia, T. J. (1988) Modified clays for the adsorption of environmental toxicants: Binding of chlorophenols to pillared, delaminated, and hydroxy-interlayered smectites: Clays & Clay Minerals 36, 403–408.CrossRefGoogle Scholar

Copyright information

© The Clay Minerals Society 1991

Authors and Affiliations

  • Laurent J. Michot
    • 1
  • Thomas J. Pinnavaia
    • 1
  1. 1.Department of Chemistry and Center for Fundamental Materials ResearchMichigan State UniversityEast LansingUSA

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