Results 191 to 200 of about 7,927,773 (219)

Nucleation and Growth of a Nanobubble on Rough Surfaces

Langmuir, 2020
We study the nucleation and growth of a nanobubble on rough surfaces using molecular dynamics simulations. A nanobubble nucleates and grows by virtue of a heterogeneous surface reaction which results in the production of gas molecules near the surface. We study the role of surface roughness in the nucleation and growth behavior of a nanobubble.
Shantanu Maheshwari, Cor van Kruijsdijk, Suchismita Sanyal, Albert D. Harvey   +3 more
openaire   +2 more sources

Toward a Comprehensive Understanding of the Anomalously Small Contact Angle of Surface Nanobubbles.

Langmuir
Experimental studies have demonstrated that the gas phase contact angle (CA) of a surface nanobubble (SNB) is much smaller than that of a macroscopic gas bubble.
Dayong Li, Yutong Ji, Zhenlin Wei, Lixin Wang   +3 more
semanticscholar   +1 more source

Decrease in the Surface Tension of Nanobubble Dispersion in Water: Results of Surface Excess of Bulk Nanobubbles at Interfaces

Langmuir, 2023
The effect of nanobubbles (NBs) on the surface tension of liquid was investigated by three methods of different measuring principles, pendant drop (PD), Wilhelmy, and du Noüy methods, over a wide range of number concentration of bulk NBs (BNBs). In all of the three methods, the surface tension decreased in proportion to the number concentration of BNBs
Toru Tuziuti, Kyuichi Yasui, Wataru Kanematsu   +2 more
openaire   +2 more sources

Nanobubbles in graphene oxide synthesis: investigation of structure and physicochemical properties with boosting of oxygen content and microporous surface area

RSC Advances
The present work reports an innovative modification of graphene oxide (GO) using air nanobubbles (NBs). A comprehensive set of characterizations, including Raman spectroscopy, FTIR, XRD, SEM, porosimetry, and SAXS, confirmed the improved structural ...
Konstantinos N. Maroulas, N. Vordos, A. Mitropoulos, G. Kyzas   +3 more
semanticscholar   +1 more source

Label-Free Optical Imaging of the Dynamic Stick-Slip and Migration of Single Sub-100-nm Surface Nanobubbles: A Superlocalization Approach.

Analytical Chemistry, 2019
The past decade has witnessed theoretical and experimental debates on the extraordinary long lifetime and low contact angle of surface nanobubbles. While several kinds of imaging techniques have provided promising evidence on the lifetime and gaseous ...
Yongjie Wang, J. Chen, Yingyan Jiang, Xian Wang, W. Wang   +4 more
semanticscholar   +1 more source

Force Spectroscopy Revealed a High-Gas-Density State near the Graphite Substrate inside Surface Nanobubbles.

Langmuir, 2019
The absorption of gas molecules at hydrophobic surfaces may have a special state and play an important role in many processes in interfacial physics, which has been rarely considered in previous theory. In this paper, force spectroscopic experiments were
Shuo Wang, Limin Zhou, Xingya Wang, Chunlei Wang, Ya-ming Dong, Yi Zhang, Yongxiang Gao, Lijuan Zhang, Jun Hu   +8 more
semanticscholar   +1 more source

Stability of Surface Nanobubbles without Contact Line Pinning.

Langmuir, 2019
Although the stability of most surface nanobubbles observed can be well interpreted by contact line pinning and supersaturation theory, there is increasing evidence that at least for certain situations, contact line pinning is not required for nanobubble
Zhenjiang Guo, Xian Wang, Xianren Zhang
semanticscholar   +1 more source

Enhanced fluctuation for pinned surface nanobubbles

Physical Review E, 2019
By employing molecular dynamics simulations we investigate the fluctuation of surface nanobubbles immersed in liquid phase. Our simulation results indicate that in comparison with the surrounding liquid and nanobubble interior, the vapor-liquid or gas-liquid interface of nanobubbles always exhibits the largest compressibility, demonstrating the ...
Zhenjiang Guo, Xianren Zhang
openaire   +2 more sources

Characterization of Nanobubbles on Hydrophobic Surfaces in Water

Langmuir, 2007
The aim of this paper is to quantitatively characterize the appearance, stability, density, and shape of surface nanobubbles on hydrophobic surfaces under varying conditions such as temperature and temperature variation, gas type and concentration, surfactants, and surface treatment.
Yang, S., Dammer, S.M., Bremond, N.P., Zandvliet, H.J.W., Kooij, E.S., Lohse, D.   +5 more
openaire   +2 more sources

The behavior of surface nanobubbles on different substrates in electrochemistry

Journal of Molecular Liquids, 2023
Tengfei Nie, Qiang Xu, Yonglu She, Xingmiao Ye, Mengsha Wang, Xinyi Luo, Liejin Guo   +6 more
semanticscholar   +1 more source