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Modification of the surface of titanium dioxide with octadecyl alcohol and adsorption of benzene, methanol, and water vapors

  • Physical Chemistry
  • Published:
Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

  1. 1.

    A modification of the surface of titanium dioxide (rutile) with octadecyl alcohol was conducted under static conditions from the gas phase, whereupon esterification of the surface hydroxyl groups of rutile occurs. The concentration of alkoxyl radicals was determined by thermal destruction under vacuum.

  2. 2.

    From the data on the adsorption of benzene, methanol, and water vapors, the texture and chemical composition both of the initial surface of rutile and of the surface modified with octadecyl alcohol were determined. The modifying layer is a thinned Langmuir “palisade” with the gaps of the deposited hydrocarbon radicals filled at the surface. The adsorption capacity of such a layer is higher than for samples modified with lower aliphatic alcohols.

  3. 3.

    During the process of adsorption of water vapors there is a rearrangement of the modifying layer with the formation of a mosaic surface of hydrophilic and hydrophobic portions.

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Authors and Affiliations

  1. Institute of Physical Chemistry, Academy of Sciences of the USSR, Moscow

    A. A. Isirikyan, S. S. Mikhailova, S. N. Tolstaya & A. B. Taubman

Authors
  1. A. A. Isirikyan
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  2. S. S. Mikhailova
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  3. S. N. Tolstaya
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  4. A. B. Taubman
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Additional information

The authors would like to express their deep gratitude to M. M. Dubinin and V. V. Serpinskii for their interest in the work.

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1252–1258, June, 1975.

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Isirikyan, A.A., Mikhailova, S.S., Tolstaya, S.N. et al. Modification of the surface of titanium dioxide with octadecyl alcohol and adsorption of benzene, methanol, and water vapors. Russ Chem Bull 24, 1155–1160 (1975). https://doi.org/10.1007/BF00922037

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  • DOI: https://doi.org/10.1007/BF00922037

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