A Report On Activated Carbon

1122 WordsMar 20, 20155 Pages
Introduction: Activated carbon Charcoal, also known as activated charcoal, is a structure of carbon that has been administered with oxygen [14] to create millions of tiny pores between the carbon atoms. Another particular aspect of the activated carbon is that can be produced from peat, wood, coconut shells. There are roughly 150[14] grades of activated carbon each one with specific purposes. [14]This increases the surface area of the substance from 500 to 1500m2/g. It is believed that [14] one pound of activated carbon has the surface area equivalent of six football fields. Activated charcoal is utilized on a big scale such as in like in gas, purification of water, extraction of metals, tablets, capsules, within other…show more content…
Irving Langmuir reached the conclusion that by using the adsorption equation one can illustrates a connection among the number of active sites of the surface undergoing adsorption and pressure. Irving Langmuir planned his theory by creating certain assumptions; [12] 1. Set number of adsorption sites is unfilled on the surface of solid. 2. All the available sites are of identical dimension and form on the surface of the adsorbent. 3. Every site can take a maximum of one gaseous molecule and a constant amount of heat energy is released during this process. 4. Dynamic equilibrium subsists amid adsorbed gaseous molecules and the free gaseous molecules. [12] A (g) = not adsorbed gaseous molecule, B(s) = vacant metal surface and AB = Adsorbed gaseous molecule. 5. Thus, adsorption is monolayer Langmuir pointed out that active equilibrium subsists among adsorbed gaseous molecules and the free gaseous molecules. [12] Ka = equilibrium constant for forward reaction, so Kd = equilibrium constant for backward direction. As a result, the rate of the forward reaction is Ka [A] [B]; therefore, for the backward reaction is, Kd [AB]. Consequently, the rate of the forward reaction equals the rate of backward reaction at
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