An exponential kinetic model for adsorption at solid/solution interface

2013 ◽  
Vol 215-216 ◽  
pp. 65-71 ◽  
Author(s):  
Monireh Haerifar ◽  
Saeid Azizian
Keyword(s):  
Solid Solution ◽  
Kinetic Model ◽  
Solution Interface

In situ nanoscale visualization of solvent effects on molecular crystal surfaces

CrystEngComm ◽  
2021 ◽  
Author(s):  
Mikkel Herzberg ◽  
Anders Støttrup Larsen ◽  
Tue Hassenkam ◽  
Anders Østergaard Madsen ◽  
Jukka Rantanen
Keyword(s):  
Solid Solution ◽  
Solvent Effects ◽  
Molecular Crystal ◽  
Rational Design ◽  
Molecular Level ◽  
Molecular Crystals ◽  
Crystal Surfaces ◽  
Solution Interface ◽  
Atomic Force

Solvents can dramatically affect molecular crystals. Obtaining favorable properties for these crystals requires rational design based on molecular level understanding of the solid-solution interface. Here we show how atomic force...

scholarly journals Removal of Chromium from Aqueous Solution Using Modified Pomegranate Peel:Mechanistic and Thermodynamic Studies

2009 ◽  
Vol 6 (s1) ◽  
pp. S153-S158 ◽  
Author(s):  
Tariq S. Najim ◽  
Suhad A. Yassin
Keyword(s):  
Activation Energy ◽  
Solid Solution ◽  
Aqueous Solution ◽  
Adsorption Process ◽  
Batch Process ◽  
The Other ◽  
Water Molecules ◽  
Pomegranate Peel ◽  
Solution Interface ◽  
Adsorbent Surface

Modified pomegranate peel (MPGP) and formaldehyde modified pomegranate peel (FMPGP) were prepared and used as adsorbent for removal of Cr(VI) ions from aqueous solution using batch process. The temperature variation study of adsorption on both adsorbents revealed that the adsorption process is endothermic, from the positive values of ∆H˚. These values lie in the range of physisorption. The negative values of ∆G˚ show the adsorption is favorable and spontaneous. On the other hand, these negative values increases with increase in temperature on both adsorbents, which indicate that the adsorption is preferable at higher temperatures. ∆S˚ values showed that the process is accompanied by increase in disorder and randomness at the solid solution interface due to the reorientation of water molecules and Cr(VI) ions around the adsorbent surface. The endothermic nature of the adsorption was also confirmed from the positive values of activation energy, Ea, the low values of Ea confirm the physisorption mechanism of adsorption. The sticking probability, S*, of Cr(VI) ion on surface of both adsorbents showed that the adsorption is preferable due to low values of S*(0< S*< 1 ), but S*values are lower for FMPGP indicating that the adsorption on FMPGP is more preferable .

Discrepancies in Thorium Oxide Solubility Values: Study of Attachment/Detachment Processes at the Solid/Solution Interface

2010 ◽  
Vol 49 (19) ◽  
pp. 8736-8748 ◽  
Author(s):  
Johan Vandenborre ◽  
Bernd Grambow ◽  
Abdessalam Abdelouas
Keyword(s):  
Solid Solution ◽  
Thorium Oxide ◽  
Solution Interface ◽  
Oxide Solubility

Fine-Tuned Characterization at the Solid/Solution Interface of Organotin Compounds Grafted onto Cross-Linked Polystyrene by Using High-Resolution MAS NMR Spectroscopy

2002 ◽  
Vol 8 (15) ◽  
pp. 3431 ◽  
Author(s):  
José C. Martins ◽  
Frédéric A. G. Mercier ◽  
Alexander Vandervelden ◽  
Monique Biesemans ◽  
Jean-Michel Wieruszeski ◽  
...  
Keyword(s):  
Solid Solution ◽  
Nmr Spectroscopy ◽  
High Resolution ◽  
Mas Nmr ◽  
Organotin Compounds ◽  
Solution Interface
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