2009
DOI: 10.1016/j.ccr.2009.03.006
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Metal ion extraction in microheterogeneous systems

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Cited by 40 publications
(15 citation statements)
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“…While their amphiphilic nature makes them attractive candidates for the assembly of nano-scale, metal-containing colloids, the headgroup ligand can impart a rich metal-coordination chemistry that can be used to tune the nature of the self-assembled structures. Metallosurfactants have been reviewed recently from a number of different perspectives, including metallomicelles [1,2], supramolecular aggregates of lipophilic Gd(III)-MRI contrast agents [3], metalloaggregates for catalysis, transport and sensing [4,5], nanoscale molecular containers for fluorescent sensors [6], and for metal extraction strategies [7]. Because the metal-cation is generally located at the hydrophilic–hydrophobic interface of the colloid, metallosurfactants are attractive as catalysts to react with either hydrophilic or hydrophobic substrates [8,9].…”
Section: Introductionmentioning
confidence: 99%
“…While their amphiphilic nature makes them attractive candidates for the assembly of nano-scale, metal-containing colloids, the headgroup ligand can impart a rich metal-coordination chemistry that can be used to tune the nature of the self-assembled structures. Metallosurfactants have been reviewed recently from a number of different perspectives, including metallomicelles [1,2], supramolecular aggregates of lipophilic Gd(III)-MRI contrast agents [3], metalloaggregates for catalysis, transport and sensing [4,5], nanoscale molecular containers for fluorescent sensors [6], and for metal extraction strategies [7]. Because the metal-cation is generally located at the hydrophilic–hydrophobic interface of the colloid, metallosurfactants are attractive as catalysts to react with either hydrophilic or hydrophobic substrates [8,9].…”
Section: Introductionmentioning
confidence: 99%
“…Ein weiteres Phänomen ist die Metallionenextraktion in mikroheterogenen Systemen, die man gezielt einsetzt, um die Geschwindigkeit chemischer Reaktion zu beeinflussen oder um die fixierten Metallionen mittels einer nachgeschalteten Ultrafiltration zu entfernen [13]. Bei Verwendung des Kationenaustauschers Di(2-ethylhexyl)phosphorsäure (D 2 EHPA) zur mizellaren Metallionenextraktion nutzt man die gute Wasserlöslichkeit und die Grenzflächenaktivität seines anionischen Restes, der ebenfalls tensidische Eigenschaften aufweist, indem man entweder direkt das Natriumsalz der Organophosphorsäure einsetzt oder durch Zusatz von Lauge die Ionenaustauscher konditioniert [14].…”
Section: Problemstellungunclassified
“…Reversed micelles and water-in-oil (W/O) microemulsions, the nanometric aggregates formed by surfactants in organic solvents, have various capabilities, e. g., acting as media for the preparation of functional materials and the extraction of proteins and metal ions [1][2][3]. The difference of reversed micelles from W/O microemulsions rests on the nonavailability of free water in the core called the "micropool".…”
Section: Introductionmentioning
confidence: 99%