A note on the synergistic effect of surfactants and nanoparticles on rising bubble hydrodynamics

Fayzi, Pouyan; Bastani, Dariush; Lotfi, Marzieh

doi:10.1016/j.cep.2020.108068

Cited by 10 publications

(3 citation statements)

References 36 publications

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“…There are a number of investigations on rising bubbles in a single substance solution of surfactants, alkanes or salts in water [13, 33-35, 37, 47] and fewer investigations on watery solution of protein 34 . Here, one could see LVPs measurements for two kinds of protein (BCS and BLG) and the non-ionic surfactant of C 10 DMPO.…”

Section: Lvps Of Rising Bubble In Single Substance Solutionsmentioning

confidence: 99%

“…Since aggregation and adsorption of proteins takes place at the interface of bubbles, it is useful to measure the velocity of rising bubbles in solutions containing protein and surfactants because it gives beneficial insights about their effect on the creation of layers of adsorption. Overall, the adsorbed layer limits the motion pattern of a bubble interface and, hence, a reduction of maximum 50% can occur in the rising velocity of a bubble [32][33][34][35][36]. As a bubble forms at the end of a capillary surrounded by a solution containing surfactant a layer of adsorbed surfactant is created through the whole surface of the bubble.…”

Section: Introductionmentioning

confidence: 99%

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Hydrodynamics of Rising Air Bubbles in Mixture of Proteins with Non-Ionic Surfactants to Declare their Interaction at the Air-Water Interface

Lotfi¹,

Bahmani²,

Bastani³

2022

Scientia Iranica

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Evaluation of behavior of adsorbed layers of protein-surfactant mixture at the air-water interfaces have recently received great attention due to their wide applications in food and pharmaceutical industries. In this research, qualitative study of surface activity of two kinds of proteins, Beta-Lactoglobulin (BLG) and Beta-Casein (BCS), non-ionic surfactant of C 10 DMPO, and the mixtures of them in different concentrations at the air-water interface is investigated using rising bubble method. The similarity between measured local velocity profiles can be due to the fact that all mentioned materials are surface-active one and could create the Marangoni effect and develop a dynamic adsorption layer. As there is no significant interaction between the protein and surfactant molecules, stable complex structures cannot be formed in the protein-C10DMPO mixture. The mixture velocity profile is more similar to that of the surfactant which is a result of replacement of protein molecules or complexes with free surfactant at the bubble interface. It is found that the mixture of non-ionic surfactant with BCS has a bit synergetic effect while for its mixture with BLG, a negative synergy is observed which is resulted from the shape of protein.

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Section: Lvps Of Rising Bubble In Single Substance Solutionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hydrodynamics of Rising Air Bubbles in Mixture of Proteins with Non-Ionic Surfactants to Declare their Interaction at the Air-Water Interface

Lotfi¹,

Bahmani²,

Bastani³

2022

Scientia Iranica

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“…The hydrophobicity of silica NP can effectively control the stability, collapse, and coalescence of aqueous foams 10, 21–24. Furthermore, NP in the presence of surfactants are utilized as stabilizing agents of fluid‐liquid dispersions 25–28.…”

Section: Introductionmentioning

confidence: 99%

Influence of Surface‐Modified Nanoparticles on the Hydrodynamics of Rising Bubbles

et al. 2021

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Local velocities of bubbles rising in four different nanosilica solutions were investigated experimentally. Also, the density, viscosity, and surface tension of fumed nanosilica and modified nanosilica solutions were measured. Heat treatment and chemical functionalization were used to modify the properties of silica nanoparticles. It was found that the addition of nanosilica affected the hydrodynamics of the rising bubble by increasing the drag friction at the interface. However, environmentally responsive nanosilica particles behaved like surfactant molecules, due to the interfacial activity of hydrophilic and hydrophobic chains. Silica nanoparticles coated with both hydrophilic and hydrophobic agents had a stronger effect on the interfacial properties than those coated only with the hydrophobic agent.

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Thermodynamic analysis on using titanium oxide/oil nanofluid integrated with porous medium in an evacuated tube solar water heater

Firoozzadeh

Shafiee

2023

J Therm Anal Calorim

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A note on the synergistic effect of surfactants and nanoparticles on rising bubble hydrodynamics

Cited by 10 publications

References 36 publications

Hydrodynamics of Rising Air Bubbles in Mixture of Proteins with Non-Ionic Surfactants to Declare their Interaction at the Air-Water Interface

Hydrodynamics of Rising Air Bubbles in Mixture of Proteins with Non-Ionic Surfactants to Declare their Interaction at the Air-Water Interface

Influence of Surface‐Modified Nanoparticles on the Hydrodynamics of Rising Bubbles

Thermodynamic analysis on using titanium oxide/oil nanofluid integrated with porous medium in an evacuated tube solar water heater

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