A hydrogen bond-modulated soft nanoscale water channel for ion transport through liquid-liquid interfaces

Soft Matter ◽  
2021 ◽  
Author(s):  
Boyao Wen ◽  
Chengzhen Sun ◽  
Zhengyuan Luo ◽  
Xi Lu ◽  
Haibo Wang ◽  
...  
Keyword(s):  
Ion Transport ◽  
Oil Recovery ◽  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Water Channel ◽  
Liquid Extraction ◽  
Liquid Interfaces ◽  
Liquid Liquid Extraction ◽  
Stabilization Phase ◽  
Emulsion Stabilization

Ion transport through interfaces is of ubiquitous importance in many fields such as electrochemistry, emulsion stabilization, phase transfer catalysis, liquid-liquid extraction and enhanced oil recovery. However, the knowledge of interfacial...

scholarly journals Unexpected Inverse Correlations and Cooperativity in Ion-pair Phase Transfer

2021 ◽  
Author(s):  
Nitesh Kumar ◽  
Aurora Clark
Keyword(s):  
Phase Transfer ◽  
Liquid Extraction ◽  
Ion Pair ◽  
Transport Mechanisms ◽  
Separation And Purification ◽  
Solute Partitioning ◽  
Liquid Liquid Extraction ◽  
Purification Methods

Liquid/liquid extraction is one of the most widely used separation and purification methods, where a forefront of research is the study of transport mechanisms for solute partitioning and the relationships...

Remediation and Liquid-Liquid Phase Transfer Extraction of Chromium(VI). A Review

2004 ◽  
Vol 69 (6) ◽  
pp. 1231-1250 ◽  
Author(s):  
Shahabuddin Memon ◽  
D. Max Roundhill ◽  
Mustafa Yilmaz
Keyword(s):  
Phase Transfer ◽  
Human Health Risk ◽  
Liquid Extraction ◽  
Review Article ◽  
Chromium Vi ◽  
Chromium Plating ◽  
Liquid Liquid Extraction ◽  
Increased Risk ◽  
Dichromate Anions ◽  
The Relationship

Chromium(VI) is a widely used industrial chemical, and is generally considered to pose a greatest human health risk because it is more toxic, more soluble, and more mobile than chromium(III). Workers in industries that use chromium, in particular stainless steel welding, chromate production, chromium plating, and chrome pigment industries, where exposure via inhalation of aerosols is primarily to hexavalent chromium, are at increased risk of chromium effects. In this article we demonstrate various studies regarding remediation methods in particular liquid-liquid extraction of chromate and dichromate anions with various functionalized calixarenes. This review article briefly discusses various molecular designs of calixarene-type macrocycles for chromium(VI) oxoanion recognition, and gives examples on the relationship between structure and selectivity. The article does not, however, attempt to cover all of the different approaches to chromium(VI) extraction. A review with 73 references.

Comparison of Sorption and Extraction Methods for Recovery of Trace Organics from Water

1983 ◽  
Vol 15 (6-7) ◽  
pp. 149-159 ◽  
Author(s):  
V C Blok ◽  
G P Slater ◽  
E M Giblin
Keyword(s):  
Solvent Extraction ◽  
Methylene Chloride ◽  
Extraction Methods ◽  
Liquid Extraction ◽  
Standard Mixture ◽  
Liquid Liquid Extraction ◽  
Trace Organics ◽  
Tenax Gc

Several commercially available adsorbents were compared with solvent extraction methods for their utility in recovering trace organics from water. The adsorbents examined included Amberlite XAD-2, XAD-4 and XAD-8, Ambersorb XE340 and XE348 and Tenax-GC. All were found to produce high artifact levels, even after extensive clean-up, making them unsuitable for the analysis of trace organics in water. Quantitatively, Likens-Nickerson or continuous liquid-liquid extraction with méthylene chloride gave better recoveries than the adsorbents. Qualitatively, extractive methods were preferred as they yielded much lower levels of impurities than the adsorbents. These methods of recovering trace organics were evaluated using a standard mixture of compounds added to the water at a level of 55 µg/l. Likens-Nickerson extraction gave comparable recoveries of this mixture at 55 µg/l and 11 µg/l.

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