Formation of Mixed Aggregates at the Alumina-Aqueous Surfactant Solution Interface

Vanjara, Ajay K.; Dixit, Swati

doi:10.1021/la00007a032

Cited by 17 publications

(13 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Similar results were reported previously. [42,43] Measuring the zeta potential distribution of the binary mixture using Protocol I (mixing process) and Protocol II (in-situ gas nucleation) leads to a single modal zeta potential distribution with the peak being located around -12 mV in both cases. With a strong attractive electrical double layer force, the attachment of one component to the other is confirmed.…”

Section: Surfactant and Frother Solutionsmentioning

confidence: 99%

Studying bubble–particle interactions by zeta potential distribution analysis

Wang

Harbottle

et al. 2015

Journal of Colloid and Interface Science

View full text Add to dashboard Cite

Over the last decade, Xu and Masliyah have pioneered an approach to characterize the interactions between particles in dynamic environments of multicomponent systems by measuring zeta potential distributions of individual components and their mixtures. Using a Zetaphoremeter, the measured zeta potential distributions of individual components and their mixtures were used to determine the conditions of preferential attachment in multicomponent particle suspensions. The technique has been applied to study the attachment of nano-sized silica and alumina particles to sub-micron size bubbles in solutions with and without the addition of surface active agents (SDS, DAH and DF250). The degree of attachment between gas bubbles and particles is shown to be a function of the interaction energy governed by the dispersion, electrostatic double layer and hydrophobic forces. Under certain chemical conditions, the attachment of nano-particles to sub-micron size bubbles is shown to be enhanced by in-situ gas nucleation induced by hydrodynamic cavitation for the weakly interacting systems, where mixing of the two individual components results in negligible attachment. Preferential interaction in complex tertiary particle systems demonstrated strong attachment between micron-sized alumina and gas bubbles, with little attachment between micron-sized alumina and silica, possibly due to instability of the aggregates in the shear flow environment.

show abstract

Section: Surfactant and Frother Solutionsmentioning

confidence: 99%

Studying bubble–particle interactions by zeta potential distribution analysis

Wang

Harbottle

et al. 2015

Journal of Colloid and Interface Science

View full text Add to dashboard Cite

show abstract

“…Additionally, several materials have been investigated as surfactant adsorbents. These include layered double hydroxides [7,8], zeolites [7], activated carbons [9], silica [10], alumina [5,7,8,[11][12][13], polymers [14], and natural and synthetic fibers [15].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamics and mechanism of cetyltrimethylammonium adsorption onto clayey soil from aqueous solutions

Gürses

Karaca

Açıkyıldız

et al. 2009

Chemical Engineering Journal

View full text Add to dashboard Cite

“…On the other hand, the study of the interactions of surfactants with mineral oxides, such as the adsorption process, is an important field due to the potential application in the study of detergency, mineral flotation, dispersion/flocculation, particle growth in suspension, oil-enhanced recovery, lubrication, and chromatography, among other processes (13)(14)(15)(16). Therefore, the adsorption of such surfactants in mineral oxides is a well-studied process (17)(18)(19)(20)(21).…”

Section: Introductionmentioning

confidence: 99%