Solute adsorption from water onto a "modified" sorbent in which the hydrogen binding site is protected from water. Thermodynamics and separations

Payne, Gregory F.; Maity, N.

doi:10.1021/ie00008a026

Cited by 26 publications

(22 citation statements)

References 19 publications

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“…Figure 3 shows the simulation results together with predictions of a multicomponent multilayer lattice model. 4 Even though the individual sets of pairwise interaction energies are very different from each other (especially set 5 compared with sets 1-4), they all give the same concentration profiles (within the simulation error). This demonstrates how a relatively simple lattice model reveals important information about the reduction of interaction energies to a much smaller number of independent parameters, information that could not have been obtained from computer simulations alone.…”

Section: Reduced Set Of Interaction Parametersmentioning

confidence: 87%

“…This curve which is based on regular solution theory has been obtained from Eqs. [4] to [6]. It can be seen that the high value for AB causes a large A-B miscibility gap in the bulk; complete miscibility is reached only at high concentrations of C or at very small concentrations of either A or B.…”

Section: Strong Solute Adsorptionmentioning

confidence: 94%

“…Equations [4] to [6], along with the unity of the two sums of mole fractions (giving an additional equation for each phase), are sufficient to solve this mathematical model. The method for this solution is to set the temperature and the mole fraction of one of the species in any phase, and solve those five equations for the remaining five mole fractions.…”

Section: Figmentioning

confidence: 99%

“…5. 4 Similar to the adsorption equations presented in Section 3, the more general multicomponent multilayer model, derived in the Appendix, assumes that molecules are randomly distributed within layers parallel to the surface.…”

Section: Strong Solute Adsorptionmentioning

confidence: 99%

“…An example where the presence of a surface film can be used to advantage is a promising separation technique for liquid mixtures described by Maity and Payne (2)(3)(4). They developed a method where the pores of polycarboxylic ester sorbent were filled with hexane for selective adsorption of phenylalkanols 1 To whom correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A Simple Model for Solute Partitioning and Adsorption

Hocker

Donohue

2001

Journal of Colloid and Interface Science

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Section: Reduced Set Of Interaction Parametersmentioning

confidence: 87%

Section: Strong Solute Adsorptionmentioning

confidence: 94%

Section: Figmentioning

confidence: 99%

Section: Strong Solute Adsorptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A Simple Model for Solute Partitioning and Adsorption

Hocker

Donohue

2001

Journal of Colloid and Interface Science

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Adsorption from aqueous solution based on the synergism between hydrogen bonding and hydrophobic interactions

Yao

2005

J of Applied Polymer Sci

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ABSTRACT:The adsorption of aniline, N-methyl aniline, and N,N-dimethyl aniline on carboxyl resin(D152) in different media, water, ethanol, and hexane have been studied. In water the adsorption affinity of three sorbates on D152 increased with an increasing number of methyl groups on N atoms, which indicated that the adsorption of the three sorbates on D152 was driven by a hydrophobic interaction. But the adsorption enthalpy of the three sorbates exceeded the van der Waals force and was in the range of hydrogen bonding interactions, which indicated that the hydrogen bonding also played an important role. In hexane the adsorption affinity decreased with the increasing number of methyl groups on the N atom, presenting the reverse order to that in water. This fact revealed that the hydrogen bonding played a predominant role for the adsorption in hexane.In ethanol, there was no adsorption of three sorbates on D152 resin, because both the van der Waals force and the hydrogen bonding interaction between the resin and sorbate were depressed. The hydrogen bonding between resin and sorbates in water was also depressed, but the hydrogen bonding adsorption remained. This result suggested that there might be a synergetic effect between the van der Waals and hydrogen bonding interactions in the adsorption of sorbate on D152 resin in water. The synergetic effect was explained thermodynamically.

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Greatly improved adsorption of N‐methylated modified macroporous cross‐linked polyacrylamide toward tannin from aqueous solution

Huang

et al. 2011

J of Applied Polymer Sci

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Macroporous cross-linked poly(N-methylacrylamide) (PMAM) was prepared and the adsorption behaviors of PMAM toward tannin from aqueous solution was studied in comparison with polyacrylamide (PAM). The swollen property indicated that PMAM had a higher hydrophobicity than PAM while the adsorption showed that PMAM had a greatly improved adsorption toward tannin. The adsorption data could be fitted well by Freundlich model and the values of the thermodynamic parameters of PMAM toward tannin were more negative than PAM. The multiple hydrogen bonding and hydrophobic interaction between PAM/PMAM and tannin were shown to be responsible for the adsorption, whereas a stronger hydrogen bonding and a higher hydrophobicity of PMAM had a contribution to the greatly improved adsorption of PMAM toward tannin.

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Solute adsorption from water onto a "modified" sorbent in which the hydrogen binding site is protected from water. Thermodynamics and separations

Cited by 26 publications

References 19 publications

A Simple Model for Solute Partitioning and Adsorption

A Simple Model for Solute Partitioning and Adsorption

Adsorption from aqueous solution based on the synergism between hydrogen bonding and hydrophobic interactions

Greatly improved adsorption of N‐methylated modified macroporous cross‐linked polyacrylamide toward tannin from aqueous solution

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