Relation between boundary slip mechanisms and waterlike fluid behavior

Ternes, Patrícia; Salcedo, Evy; Barbosa, Márcia C.

doi:10.1103/physreve.97.033104

Cited by 5 publications

(4 citation statements)

References 69 publications

(109 reference statements)

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“…102,103 The water hydrodynamics is also modified in nanoconfined space. The traditional Hagen−Poisenuille equation (eq 1, for the description of steady Newtonian flow through circular tubes), assuming a no-slip boundary condition and zero interfacial fluid velocity, is no longer applicable in both hydrophobic 104 and hydrophilic nanoconfined conditions. 105…”

Section: On the Fundamentals Of Nanoconfined Water And Implications F...mentioning

confidence: 99%

“…The water hydrodynamics is also modified in nanoconfined space. The traditional Hagen–Poisenuille equation (eq , for the description of steady Newtonian flow through circular tubes), assuming a no-slip boundary condition and zero interfacial fluid velocity, is no longer applicable in both hydrophobic and hydrophilic nanoconfined conditions where Q is the volumetric flow rate, R and L are the radius and length of tube, Δ P is the pressure difference between the two ends of the tube, and η is the fluid viscosity.…”

Section: On the Fundamentals Of Nanoconfined Water And Implications F...mentioning

confidence: 99%

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Nanoconfinement-Mediated Water Treatment: From Fundamental to Application

Qian

Gao

Pan

2020

Environ. Sci. Technol.

274

113

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Safe and clean water is of pivotal importance to all living species and the ecosystem on earth. However, the accelerating economy and industrialization of mankind generate water pollutants with much larger quantity and higher complexity than ever before, challenging the efficacy of traditional water treatment technologies. The flourishing researches on nanomaterials and nanotechnologies in the past decade have generated new understandings on many fundamental processes and brought revolutionary upgrades to various traditional technologies in almost all areas, including water treatment. An indispensable step toward the real application of nanomaterials in water treatment is to confine them in large processable substrate to address various inherent issues, such as spontaneous aggregation, difficult operation and potential environmental risks. Strikingly, when the size of the spatial restriction provided by the substrate is on the order of only one or several nanometers, referred to as nanoconfinement, the phase behavior of matter and the energy diagram of a chemical reaction could be utterly changed. Nevertheless, the relationship between such changes under nanoconfinement and their implications for water treatment is rarely elucidated systematically. In this Critical Review, we will briefly summarize the current state-of-the-art of the nanomaterials, as well as the nanoconfined analogues (i.e., nanocomposites) developed for water treatment. Afterward, we will put emphasis on the effects of nanoconfinement from three aspects, that is, on the structure and behavior of water molecules, on the formation (e.g., crystallization) of confined nanomaterials, and on the nanoenabled chemical reactions. For each aspect, we will build the correlation between the nanoconfinement effects and the current studies for water treatment. More importantly, we will make proposals for future studies based on the missing links between some of the nanoconfinement effects and the water treatment technologies. Through this Critical Review, we aim to raise the research attention on using nanoconfinement as a fundamental guide or even tool to advance water treatment technologies.

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Section: On the Fundamentals Of Nanoconfined Water And Implications F...mentioning

confidence: 99%

Section: On the Fundamentals Of Nanoconfined Water And Implications F...mentioning

confidence: 99%

Nanoconfinement-Mediated Water Treatment: From Fundamental to Application

Qian

Gao

Pan

2020

Environ. Sci. Technol.

274

113

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“…1 One example is the unusual high mobility of water at low temperatures which increases under pressure. 2 This mobility becomes even more unusual in nanoconfined environments [3][4][5][6][7] where water violates the macroscopic hydrodynamic equations by exhibiting superflow and by not obeying the Stokes Einstein relation. 8 This discovery turns nanoconfined systems into potential filters for desalination processes.…”

Section: Introductionmentioning

confidence: 99%

Dynamical aspects of supercooled TIP3P–water in the grooves of DNA

Santos

Habitzreuter

Schwade

et al. 2019

The Journal of Chemical Physics

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We investigate by molecular dynamics simulations the mobility of the water located at the DNA minor and major grooves. We employ the TIP3P water model, and our system is analyzed for a range of temperatures 190-300 K. For high temperatures, the water at the grooves shows an Arrhenius behavior similar to that observed in the bulk water. At lower temperatures, a departure from the bulk behavior is observed. This slowing down in the dynamics is compared with the dynamics of the hydrogen of the DNA at the grooves and with the autocorrelation functions of the water hydrogen bonds. Our results indicate that the hydrogen bonds of the water at the minor grooves are highly correlated, which suggests that this is the mechanism for the slow dynamics at this high confinement.

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“…Boundary condition is one of the most important factors that determine the dynamic behavior of a fluid [1][2][3]. For hundreds of years, no-slip condition has been adopted nearly in all the literatures on classical fluid mechanics [4].…”

Section: Introductionmentioning

confidence: 99%

Theoretical modeling and experimental characterization of boundary slip on aluminum surface with small-amplitude roughness

et al. 2020

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Boundary slip has a significant influence on micro/nano-scale flow and its quantitative description has become a prerequisite for design and fabrication of micro/nano-scale fluid systems. In this research, a physical model for boundary slip on aluminum surface with small-amplitude roughness was proposed, which considered the synergistic effects of solid-liquid interface parameters such as fluid properties, wettability and roughness. Besides, the boundary slip experiments were carried out using atomic force microscope (AFM) method to verify model accuracy. According to experimental results, the roughness (Ra) values of different aluminum surfaces were 0.47 nm, 1.16 nm, 1.94 nm, 2.63 nm and 3.18 nm, respectively. Correspondingly, the slip lengths were 23.7 nm, 20.3 nm, 18.5 nm, 15.9 nm and 12.7 nm, respectively. It was found the proposed slip model was in good agreement with experimental results, which could describe boundary slip on rough surface more accurately. This research could provide beneficial guidance for understanding of physical mechanism and quantitative description of boundary slip on solid surface with small-amplitude roughness.

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Relation between boundary slip mechanisms and waterlike fluid behavior

Cited by 5 publications

References 69 publications

Nanoconfinement-Mediated Water Treatment: From Fundamental to Application

Nanoconfinement-Mediated Water Treatment: From Fundamental to Application

Dynamical aspects of supercooled TIP3P–water in the grooves of DNA

Theoretical modeling and experimental characterization of boundary slip on aluminum surface with small-amplitude roughness

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