Langmuir linearised form

The adsorption isotherms for the RhMoe Anderson phase were measured at room temperature using the C, Cf and Ca values determined for M=Mo. When the concentration of Mo adsorbed (Ca) expressed as monolayer (%) was plotted against the Mo concentration in solution at equilibrium (Cf), the shape of the resulting curve was found to follow the Langmuir model [13]. Hence, by plotting the linearised form of the Langmuir equation, i. e. 

A linearised form of the Langmuir equation may be used to obtain F and h, as illustrated in Figure 19.4,... 

Specific to the metal, the adsorption isotherm will show an initial rapid increase of uptake with pressure, followed by a linear region of low slope. The monolayer capacity is often reported (when anything at all is said) as the intercept at zero pressure obtained by extrapolation of the linear part. Alternatively, and perhaps better, the results are plotted according to the one of the linearised forms of the Langmuir equation from which the monolayer volume can be obtained. 

One way of circumventing this problem is to fit the results to the appropriate linearised form of the Langmuir equation for dissociative adsorption ... 

The Langmuir adsorption isotherm is a good description of processes based on chemisorptions a = a. b.pl(l + b.p), in linearised form p/a=l/a. b + p/a, where b = constant, m = constant (or the amount adsorbed when the adsorbent surface is completely covered with a monomolecular layer of adsorbed substance). 

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