Studies on the adsorption behaviour of quinoline at the mercury-solution interface part II: Differential capacitance of mercury in pure electrolytes and in the presence of quinoline and characteristics of the adsorption isotherms

1982 ◽  
Vol 16 (4) ◽  
pp. 323-330
Author(s):  
H.A. Ghaly ◽  
A.A. Mazhar
Keyword(s):  
Adsorption Isotherms ◽  
Differential Capacitance ◽  
Adsorption Behaviour ◽  
Solution Interface

Adsorption of Grape Seed Procyanidins on Macroporous Adsorbent Resin: Isotherms and Thermodynamics

2011 ◽  
Vol 396-398 ◽  
pp. 571-574 ◽  
Author(s):  
Ying Hua Song ◽  
Gui Zhi Zhang
Keyword(s):  
Solid Solution ◽  
Adsorption Isotherms ◽  
Adsorption Process ◽  
Physical Adsorption ◽  
Grape Seed ◽  
Adsorption Properties ◽  
Macroporous Resin ◽  
Solution Interface ◽  
Isotherms And Thermodynamics ◽  
Langmuir And Freundlich Equations

The adsorption properties,including the adsorption isotherms,thermodynamics,of grape seed procyanidins onto macroporous resin HZ818 are investigated.Both the Langmuir and Freundlich equations can provide a good fit to the adsorption isotherms, which indicates an endothermic and a favorable process in our study.The capacities of the adsorption increase with temperature. The negative values of ΔG and values of ΔH lower than 40 kJ/mol indicate a spontaneous physical adsorption, and the positive values of ΔS show the increased randomness at the solid/solution interface during the adsorption process.

Adsorption isotherms for thiourea at the mercury-solution interface

1980 ◽  
Vol 25 (5) ◽  
pp. 679-681 ◽  
Author(s):  
A. Batana ◽  
R.C. Rocha F° ◽  
L.A. Avaca ◽  
E.R. González
Keyword(s):  
Adsorption Isotherms ◽  
Solution Interface

Surface behaviour of tetrapropylammonium cation at the mercury/solution interface measured by use of controlled convective adsorptive accumulation

1985 ◽  
Vol 50 (11) ◽  
pp. 2525-2534 ◽  
Author(s):  
Ladislav Novotný ◽  
Ivan Smoler
Keyword(s):  
Surface Tension ◽  
Adsorption Isotherms ◽  
Adsorption Energy ◽  
Surface Coverage ◽  
Adsorption Parameters ◽  
Surface Tension Data ◽  
Solution Interface ◽  
Constant Potential ◽  
Drop Time ◽  
Constant Charge

Using drop time technique with long drop times and a controlled convection of the solution the surface tension data of Hg with tetrapropylammonium perchlorate in 0.1 mol l-1 NaClO4 in the concentration range 4 . 10-6 - 3 . 10-3 mol l-1 have been obtained. The corresponding adsorption parameters have been evaluated from the Frumkin isotherm both at constant potential E and at constant charge q. Both E and q could be chosen as an independent electrical variable. The maximum free adsorption energy amounts to approx. -36.5 kJ mol-1. The congruence of adsorption isotherms with respect to E and with respect to q was very well fulfilled for the surface coverage Θ ⪬ 0.6-0.7.

Adsorption behaviour of insulin and soybean trypsin inhibitor at the mercury∣solution interface

1998 ◽  
Vol 452 (2) ◽  
pp. 151-159 ◽  
Author(s):  
Jasmina Vidić ◽  
Desanka Sužnjević ◽  
Milenko Erceg ◽  
Dušan Vučelić
Keyword(s):  
Trypsin Inhibitor ◽  
Soybean Trypsin Inhibitor ◽  
Adsorption Behaviour ◽  
Solution Interface
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