Novel Applications of Non Hofmeister Ion Specificity in Bubble Interactions

Xinkai Xue; Richard M. Pashley; Barry W. Ninham

doi:10.1016/j.cocis.2016.06.002

Novel Applications of Non Hofmeister Ion Specificity in Bubble Interactions

Xinkai Xue, Richard M. Pashley^*, Barry W. Ninham

^*Corresponding author for this work

Research output: Contribution to journal › Review article › peer-review

1 Citation (Scopus)

Abstract

The ion specificity of bubble-bubble interactions in water remains unexplained. Whatever their valence all ion pairs either completely inhibit bubble coalescence or have no effect whatever. The phenomenon appears unrelated to Hofmeister specificity. Salts which inhibit coalescence enable the formation of a high density bubble column evaporator (BCE). If hot gas bubbles are injected into the bubble column evaporator at a significantly higher temperature than the water, the hot bubble surfaces can be used to produce thermal effects in dissolved and dispersed solutes. These two properties can be exploited for a wide range of applications. Among these, high temperature aqueous reactions catalyzed at low solution temperatures, measurement of enthalpies of vaporization of concentrated salt solutions, wastewater treatments by sterilization and de-watering and desalination are a few.

Original language	English
Pages (from-to)	50-57
Number of pages	8
Journal	Current Opinion in Colloid and Interface Science
Volume	23
DOIs	https://doi.org/10.1016/j.cocis.2016.06.002
Publication status	Published - 1 Jun 2016

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10.1016/j.cocis.2016.06.002

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@article{67837b3c5b8a4a75b30828354f43e155,

title = "Novel Applications of Non Hofmeister Ion Specificity in Bubble Interactions",

abstract = "The ion specificity of bubble-bubble interactions in water remains unexplained. Whatever their valence all ion pairs either completely inhibit bubble coalescence or have no effect whatever. The phenomenon appears unrelated to Hofmeister specificity. Salts which inhibit coalescence enable the formation of a high density bubble column evaporator (BCE). If hot gas bubbles are injected into the bubble column evaporator at a significantly higher temperature than the water, the hot bubble surfaces can be used to produce thermal effects in dissolved and dispersed solutes. These two properties can be exploited for a wide range of applications. Among these, high temperature aqueous reactions catalyzed at low solution temperatures, measurement of enthalpies of vaporization of concentrated salt solutions, wastewater treatments by sterilization and de-watering and desalination are a few.",

keywords = "Bubble column evaporator, Cations, Hofmeister effects, Multivalent ions, Specific ions, Water treatment",

author = "Xinkai Xue and Pashley, {Richard M.} and Ninham, {Barry W.}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd.",

year = "2016",

month = jun,

day = "1",

doi = "10.1016/j.cocis.2016.06.002",

language = "English",

volume = "23",

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journal = "Current Opinion in Colloid and Interface Science",

issn = "1359-0294",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Novel Applications of Non Hofmeister Ion Specificity in Bubble Interactions

AU - Xue, Xinkai

AU - Pashley, Richard M.

AU - Ninham, Barry W.

PY - 2016/6/1

Y1 - 2016/6/1

N2 - The ion specificity of bubble-bubble interactions in water remains unexplained. Whatever their valence all ion pairs either completely inhibit bubble coalescence or have no effect whatever. The phenomenon appears unrelated to Hofmeister specificity. Salts which inhibit coalescence enable the formation of a high density bubble column evaporator (BCE). If hot gas bubbles are injected into the bubble column evaporator at a significantly higher temperature than the water, the hot bubble surfaces can be used to produce thermal effects in dissolved and dispersed solutes. These two properties can be exploited for a wide range of applications. Among these, high temperature aqueous reactions catalyzed at low solution temperatures, measurement of enthalpies of vaporization of concentrated salt solutions, wastewater treatments by sterilization and de-watering and desalination are a few.

AB - The ion specificity of bubble-bubble interactions in water remains unexplained. Whatever their valence all ion pairs either completely inhibit bubble coalescence or have no effect whatever. The phenomenon appears unrelated to Hofmeister specificity. Salts which inhibit coalescence enable the formation of a high density bubble column evaporator (BCE). If hot gas bubbles are injected into the bubble column evaporator at a significantly higher temperature than the water, the hot bubble surfaces can be used to produce thermal effects in dissolved and dispersed solutes. These two properties can be exploited for a wide range of applications. Among these, high temperature aqueous reactions catalyzed at low solution temperatures, measurement of enthalpies of vaporization of concentrated salt solutions, wastewater treatments by sterilization and de-watering and desalination are a few.

KW - Bubble column evaporator

KW - Cations

KW - Hofmeister effects

KW - Multivalent ions

KW - Specific ions

KW - Water treatment

UR - http://www.scopus.com/inward/record.url?scp=84977529212&partnerID=8YFLogxK

U2 - 10.1016/j.cocis.2016.06.002

DO - 10.1016/j.cocis.2016.06.002

M3 - Review article

SN - 1359-0294

VL - 23

SP - 50

EP - 57

JO - Current Opinion in Colloid and Interface Science

JF - Current Opinion in Colloid and Interface Science

ER -

Novel Applications of Non Hofmeister Ion Specificity in Bubble Interactions

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