Results 11 to 20 of about 1,018 (154)
How Bulk Nanobubbles Might Survive [PDF]
Physical Review Letters, 2020 The existence of bulk nanobubbles has long been regarded with scepticism, due to the limitations of experimental techniques and the widespread assumption that spherical bubbles cannot achieve stable equilibrium. We develop a model for the stability of bulk nanobubbles based on the experimental observation that the zeta potential of spherical bubbles ...
Claus-Dieter Ohl +2 more
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Effect of Organic Compounds and Alkalinity on the Stability of Bulk Nanobubbles: A Molecular Dynamics Study [PDF]
MoleculesBulk nanobubbles (NBs) are remarkably long-lived in liquids, yet the molecular mechanisms underpinning their stability remain unresolved. In this work, 50 ns all-atom molecular dynamics simulations were performed to investigate how gas identity (O2, N2 ...
Samal Kaumbekova +5 more
doaj +2 more sources
Stability of surface and bulk nanobubbles
Current Opinion in Colloid and Interface Science, 2021 Abstract The existence of stable nanoscopic gaseous domains in liquids, or nanobubbles, has attracted both skepticism and intrigue since classical theory predicts that spherical gas bubbles cannot achieve stable equilibrium. Can we prove these gaseous domains exist, and if they do, how do they survive?
Claus-Dieter Ohl +2 more
exaly +3 more sources
A Deliberation on Nanobubbles at Surfaces and in Bulk
ChemPhysChem, 2012 AbstractSurface and bulk nanobubbles are two types of nanoscopic gaseous domain that have recently been discovered in interfacial physics. Both are expected to be unstable to dissolution because of the high internal pressure driving diffusion and the surface tension which squeezes the gas out, but there is a rapidly growing body of experimental ...
James Seddon +2 more
exaly +4 more sources
On the Existence and Stability of Bulk Nanobubbles [PDF]
Langmuir, 2018 Bulk nanobubbles are a novel type of nanoscale bubble system. Because of their extraordinary behavior, however, their existence is not widely accepted. In this paper, we shed light on the hypothesis that bulk nanobubbles do exist, they are filled with gas, and they survive for long periods of time, challenging present theories.
Mostafa Barigou
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Bulk nanobubbles, generation methods and potential applications
Current Opinion in Colloid and Interface Science, 2021 Abstract The existence of nanobubbles, especially bulk nanobubbles, remains a mystery mainly due to their stability and longevity, properties that are investigated by many research groups worldwide. At the same time, high efforts are given to develop new generation methods, and so far, their potential uses have spread to high-value applications. Some
George Z Kyzas +2 more
exaly +3 more sources
Exsolution, Evolution, and Hysteresis of CO2 Nanobubbles in Water‐Saturated Sandstone
Geophysical Research LettersUnderstanding CO2 nanobubble formation in water‐saturated sandstone is critical for understanding fluid behavior in CO2 storage systems. Here, CO2 exsolution from an aqueous phase in a sandstone was investigated using small‐angle neutron scattering at 50°
Amirsaman Rezaeyan +6 more
doaj +2 more sources
Long-Term Stability of Nanobubbles Generated via Pressure Oscillation-Hydrodynamic Cavitation: A Rapid Assessment by UV–Vis Spectrophotometry [PDF]
NanomaterialsThe long-term stability of bulk nanobubbles is crucial for their functional applications; however, understanding the evolution of their size distribution remains a significant challenge.
Lei Huang +4 more
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Bulk nanobubbles: Production and investigation of their formation/stability mechanism
Journal of Colloid and Interface Science, 2020 Nanobubbles (ΝΒs) have attracted concentrated scientific attention due to their unique physicochemical properties and large number of potential applications. In this study, a novel nanobubble generator with low energy demand, operating continuously, is presented.
George Mitrikas +2 more
exaly +4 more sources
Comment on “Bulk Nanobubbles or Not Nanobubbles: That is the Question” [PDF]
Langmuir, 2020 In a recent article, Jadhav and Barigou ( Langmuir 2020, 36 (7), 1699-1708) investigated the question of the existence of stable bulk nanobubbles in water generated by hydrodynamic cavitation, ultrasound cavitation, and the addition of an organic compound (namely, ethanol) to water.
Dmytro Rak, Marián Sedlák
openaire +2 more sources