Standard Article

Mechanisms of Water Adsorption on Carbons

Physics and Chemistry of Water

  1. Piotr A. Gauden1,
  2. Artur P. Terzyk1,
  3. Gerhard Rychlicki1,
  4. Sylwester Furmaniak1,
  5. RadosŁaw P. WesoŁowski1,
  6. Marek Wiśniewski1,
  7. Piotr Kowalczyk2

Published Online: 15 JUL 2005

DOI: 10.1002/047147844X.pc388

Water Encyclopedia

Water Encyclopedia

How to Cite

Gauden, P. A., Terzyk, A. P., Rychlicki, G., Furmaniak, S., WesoŁowski, R. P., Wiśniewski, M. and Kowalczyk, P. 2005. Mechanisms of Water Adsorption on Carbons. Water Encyclopedia. 4:400–404.

Author Information

  1. 1

    N. Copernicus University, Toruń, Poland

  2. 2

    Faculty of Science, Chiba University, Chiba, Japan

Publication History

  1. Published Online: 15 JUL 2005

Abstract

The properties of water are of importance in many scientific disciplines such as chemistry, biology, geology, nanotechnology, and materials technology. Moreover, the adsorption of water on activated carbon (AC) is an important topic in many different areas of science and technology because water is the most common solvent in nature. The adsorption and phase behavior of polar fluids in carbon pores has been studied extensively, but our understanding of the adsorption of water on carbonaceous materials is still incomplete (1, 2, 3, 4).

In recent years, a number of experimental and simulation studies of adsorption of water in pores have appeared in the literature. Some studies have assumed that the adsorption behavior of water in graphite pores is hydrophobic. Although principally hydrophobic adsorbents may contain significant numbers of adsorption centers that can interact with water, it is generally believed that the combination of weak carbon–water dispersive attractions and strong water–water associative interactions are responsible for the complex behavior of water confined in carbonaceous pores.

Keywords:

  • water adsorption;
  • activated carbon;
  • carbon surface chemistry;
  • quantum models;
  • enthalpy of adsorption;
  • mechanisms of adsorption;
  • computer simulations