Langmuir Isotherm Calculator: Adsorption Capacity (Qmax) & Constant (K)

Calculate Langmuir Isotherm Parameters

mg/g
The maximum amount of adsorbate that can be adsorbed per unit mass of adsorbent (monolayer coverage).
L/mg
Related to the affinity of the binding sites for the adsorbate.
mg/L
The concentration of the adsorbate remaining in the solution at equilibrium.

Calculation Results

Equilibrium Adsorption (q): mg/g

Unlock the secrets of surface adsorption using our free Langmuir Isotherm Calculator. Easily compute equilibrium adsorption (q), maximum monolayer capacity (Qmax), and the Langmuir constant (K) for various adsorbates. Ideal for chemical engineering, environmental science, and materials research.

Formula:

The Langmuir Isotherm model describes monolayer adsorption on a homogeneous surface with a finite number of identical sites. The formula is:

q = (Qmax * K * C) / (1 + K * C)

  • q: Amount of adsorbate adsorbed per unit mass of adsorbent at equilibrium (e.g., mg/g)
  • Qmax: Maximum adsorption capacity, representing complete monolayer coverage of the adsorbent surface (e.g., mg/g)
  • K: Langmuir constant, related to the affinity of the binding sites for the adsorbate (e.g., L/mg)
  • C: Equilibrium concentration of the adsorbate in the solution (e.g., mg/L)

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