Abstract
Adsorption at various types of interfaces will take place when a liquid phase is in contact with another immiscible phase which may be solid, liquid, or gas. For adsorption to occur in excess, one or both of the phases should contain more than one component. Two immiscible bulk phases must be in contact with each other so that some of these components are accumulated in excess at the interfacial region and the process of transfer of the component from the bulk to the surface will continue until a state of adsorption equilibrium is reached. The component which is preferentially accumulated at the interface is frequently termed an adsorbate. The term adsorbent is also used for the powdered solid on the surface of which adsorbates from the liquid phase are accumulated in excess. The types of the interfaces are usually designated by names of the bulk phases in contact with each other such as air-water, benzene-water, mercury-water, or alumina-water interfaces.
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© 1984 Plenum Press, New York
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Chattoraj, D.K., Birdi, K.S. (1984). Introduction. In: Adsorption and the Gibbs Surface Excess. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-8333-2_1
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DOI: https://doi.org/10.1007/978-1-4615-8333-2_1
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