Sensing ammonia using dry waters containing cupric chloride solution

Hu, Miaomiao; Tian, Meijuan; He, Juan; He, Yongjun

doi:10.1016/j.colsurfa.2012.08.030

Cited by 11 publications

(7 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Silica covered liquid marbles with a copper chloride solution core, placed in an ammonia atmosphere, change color from blue-green to dark blue. Color intensity and rapid change are parameters to quantitative determine ammonia concentration [ 93 , 94 ]. “Plasmonic liquid marbles” covered in Ag/Au nanoparticles enriched with Raman spectroscopy, are precursors in obtaining special analytical platforms.…”

Section: Liquid Marbles’ Applicationsmentioning

confidence: 99%

Liquid Marbles: From Industrial to Medical Applications

et al. 2018

View full text Add to dashboard Cite

Liquid marbles are versatile structures demonstrating a pseudo-Leidenfrost wetting regime formed by encapsulating microscale volumes of liquid in a particle shell. The liquid core is completely separated from the exterior through air pockets. The external phase consists of hydrophobic particles, in most cases, or hydrophilic ones distributed as aggregates. Their interesting features arise from the double solid-fluid character. Thus, these interesting formations, also known as “dry waters”, have gained attention in surface science. This review paper summarizes a series of proposed formulations, fabrication techniques and properties, in correlation with already discovered and emerging applications. A short general review of the surface properties of powders (contact angle, superficial tension) is proposed, followed by a presentation of liquid marbles’ properties (superficial characteristics, elasticity, self-propulsion etc.). Finally, applications of liquid marbles are discussed, mainly as helpful and yet to be exploited structures in the pharmaceutical and medical field. Innovative pharmaceutical forms (Pickering emulsions) are also means of use taken into account as applications which need further investigation.

show abstract

Section: Liquid Marbles’ Applicationsmentioning

confidence: 99%

Liquid Marbles: From Industrial to Medical Applications

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Another application for dry water that exploits its large gasliquid interface is sensing. 14 In this report, we describe the use of alkaline dry water, or 'dry base' for CO 2 capture. Like aqueous solutions of liquid amines, aqueous solutions of group 1 and 2 metal carbonates are well known to capture CO 2 , in this case as bicarbonates.…”

mentioning

confidence: 99%

‘Dry bases’: carbon dioxide capture using alkaline dry water

Dawson

Stevens

Williams

et al. 2014

Energy Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…Moreover, the color change in DC can be used as a parameter for the quantitative detection of NH 3 uptake. 34 As shown in the inset of Figure 6b, the boundary between green-blue and deep blue in the column can be observed clearly. With NH 3 uptake, the boundary gradually shifts from the top to the bottom.…”

Section: Resultsmentioning

confidence: 73%

“…Thus, after exposing a full column of DC to an ammonia solution, the color of the filling DC can gradually change from green-blue to deep blue from the top. Moreover, the color change in DC can be used as a parameter for the quantitative detection of NH 3 uptake …”

Section: Resultsmentioning

confidence: 99%

Size Effect of Silica Shell on Gas Uptake Kinetics in Dry Water

Zhang

Bai

et al. 2016

Langmuir

View full text Add to dashboard Cite

Two kinds of dry water (DW) particles are prepared by mixing water and hydrophobic silica particles with nanometer or micrometer dimensions, and the two DW particles are found to have similar size distributions regardless of the size of the silica shell. The CO2 uptake kinetics of DW with nanometer (nanoshell) and micrometer shells (microshell) are measured, and both uptake rate and capacity show the obvious size effect of the silica shell. The DW with a microshell possesses a larger uptake capacity, whereas the DW with a nanoshell has a faster uptake rate. By comparing the uptake kinetics of soluble NH3 and CO2 further, we found that the microshell enhances the stability and the dispersion degree of DW and the nanoshell offers a shorter path for the transit of guest gas into the water core. Furthermore, molecular dynamics simulation is introduced to illustrate the nanosize effect of the silica shell on the initial step of the gas uptake. It is found that the concentration of gas molecules close to the silica shell is higher than that in the bulk water core. With the increase in the size of the silica shell, the amount of CO2 in the silica shell decreases, and it is easier for the gas uptake to reach steady state.

show abstract

Sensing ammonia using dry waters containing cupric chloride solution

Cited by 11 publications

References 16 publications

Liquid Marbles: From Industrial to Medical Applications

Liquid Marbles: From Industrial to Medical Applications

‘Dry bases’: carbon dioxide capture using alkaline dry water

Size Effect of Silica Shell on Gas Uptake Kinetics in Dry Water

Contact Info

Product

Resources

About