Contact Angle and Film Pressure: Study of a Talc Surface

Douillard, J. M.; Zając, Jerzy; Malandrini, H.; Clauss, Frédéric

doi:10.1006/jcis.2002.8611

Cited by 40 publications

(35 citation statements)

References 31 publications

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“…The coefficient f = s S /H S = 0.45 is recommended in [99]. It follows from Table 3 that for modified sorbents f = 0.41-0.63.…”

Section: Low-energy Surfaces Of the Organic Derivatives Of Oxides Andmentioning

confidence: 98%

Surface energy of oxides and silicates

Tarasevich

2006

Theor Exp Chem

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Published data and the author's own data on the surface energy of hydrophilic oxides, silicates, and hydrophobic adsorbents based on them are reviewed. The prospects of using the combined Gibbs-Helmholtz-Young equation to obtain data on the surface pressure, heat of wetting, and wetting contact angle of hydrophilic and hydrophobic adsorbents are demonstrated. These data are used to estimate the thermodynamic characteristics of the surface and interfacial regions at the boundary between the materials and water. It is shown that the boundary layers of water close to the hydrophobic surfaces are more ordered while those close to the hydrophobic surfaces are less ordered than with liquid water.

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“…The coefficient f = s S /H S = 0.45 is recommended in [99]. It follows from Table 3 that for modified sorbents f = 0.41-0.63.…”

Section: Low-energy Surfaces Of the Organic Derivatives Of Oxides Andmentioning

confidence: 98%

Surface energy of oxides and silicates

Tarasevich

2006

Theor Exp Chem

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“…6.18c to express the interfacial enthalpy H s SL in terms of the apolar (LW), Lewis acid (A) and Lewis base (B) components of the surface enthalpy for the solid and immersional liquid, the final explicit form for the enthalpy of immersion is as follows [42][43][44]:…”

Section: Hydrophilic-hydrophobic Series and Harkins-jura Methodsmentioning

confidence: 99%

“…The determination of the related surface enthalpy terms H s S0 and H s LG from direct calorimetry measurements provides an alternative way to evaluate the hydrophobichydrophilic character of a solid surface [38,[42][43][44], since the following deconvolution procedures may be proposed for the surface enthalpy in analogy with those holding for the Gibbs energy (Eqs. 6.8-6.13a, 6.13b):…”

Section: Calorimetry Applied To Evaluate Surface Properties Of Solidsmentioning

confidence: 99%

Calorimetry at the Solid–Liquid Interface

Zając

2013

Calorimetry and Thermal Methods in Catalysis

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Broad principles of Solid-Liquid calorimetry together with some illustrative examples of its use in the field of catalysis are presented here. The first use is related to the determination of surface properties of catalysts, adsorbents and solid materials in contact with liquids. In particular, it is shown how to evaluate the capacity of a given solid to establish different types of interaction with its liquid environment or to calculate its specific surface area accessible to liquids. The second use includes the measurement of the heat effects accompanying catalytic reactions and the related interfacial phenomena at Solid-Liquid and Liquid-Liquid interfaces. Examples of competitive ion adsorption from dilute aqueous solutions, as well as the formation of surfactant aggregates either in aqueous solution or at the SolidLiquid interface are considered in view of potential applications in Environmental Remediation and Micellar Catalysis.

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“…Its analysis shows that both hydrophilic and hydrophobic materials in interaction with water are characterized by a single coefficient f = 2/3 » 0.67. It is almost 1.5 times higher the value f = 0.45 used in [44].…”

mentioning

confidence: 88%

“…Douillard [34,44,55] tried to get round this problem by using the approximate linear equation DG = fDH and assigning values of 0.3-0. 45 to the coefficient f during determination of the free energy of wetting.…”

Section: Heats Of Wetting and Surface Energy Of Solidsmentioning

confidence: 99%

Energetics of the interaction of water and other liquids with the surface of hydrophilic and hydrophobic sorbents according to data on the heats of wetting

Tarasevich

2008

Theor Exp Chem

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Papers on the energetics of the interaction of various substances with the surface of hydrophilic and hydrophobic sorbents using the data from heats of wetting are reviewed. The thermodynamics of wetting is examined, and the important role of the heats of wetting for the production of quantitative data on the surface energy of solids is demonstrated. The uniqueness of the information on the physicochemical characteristics of the sorbents and catalysts obtained from the immersion wetting isotherms is emphasized, and up-to-date information on the extent, structure, and characteristics of the boundary layers of water is analyzed. It is shown that the calorimetric data serve as an experimental base for obtaining data on the structural ordering-disordering of the boundary layers of water.

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Contact Angle and Film Pressure: Study of a Talc Surface

Cited by 40 publications

References 31 publications

Surface energy of oxides and silicates

Surface energy of oxides and silicates

Calorimetry at the Solid–Liquid Interface

Energetics of the interaction of water and other liquids with the surface of hydrophilic and hydrophobic sorbents according to data on the heats of wetting

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