Ultrasonic cavitation of molten gallium in water: Entrapment of organic molecules in gallium microspheres

Vijay Bhooshan Kumar, Yuri Koltypin, Aharon Gedanken, Ze'Ev Porat

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

Simultaneous formation of gallium microspheres and entrapment of organic materials within them can be accomplished by applying ultrasonic energy to a heated solution of the organic substance that contains the molten metal. This method was used with aqueous solutions (5-10 mM) of four organic compounds (phenanthroline, Congo Red, crystal violet and rhodamine 6G) at 55 °C, a temperature at which the gallium is molten. Irradiation with ultrasonic energy for ca. 3 min dispersed the molten gallium into microscopic spheres, which were found to contain various amounts of these organic compounds. Immersion of the isolated spheres in pure water results in slow leaching of some of the above compounds.

Original languageEnglish
Pages (from-to)1309-1317
Number of pages9
JournalJournal of Materials Chemistry A
Volume2
Issue number5
DOIs
StatePublished - 7 Feb 2014

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