Saturday, March 20, 2010

The separation.

The separation of the mixture with light.
Scientists in England have been using light to separate the mixed-complex chemical mixtures. This method can be used to merecovery products and high value-nanoparticle nanoparticles of mixed-catalytic reaction mixture, they claim. Julian Eastoe, at the University of Bristol, and colleagues added surfactant-sensitive surface to the mikroemulsi. When they illuminate the mixture with UV light, causing surfactant oil phase and water phase in the emulsion separated.

Previously, researchers rely on heat, pH changes, or adding salt to separate the phases in mikroemulsi. This new method does not alter the chemical composition mikroemulsi or use as much energy with the separation that uses heat.

"We were quite impressed with the opportunities offered by the activated particles of light, colloids, and the interphase-interphase. This will be more enriching field of chemical engineering" Eastoe said. More importantly, added Eastoe, these divisions are reversible. After a separated dispersed sample, the sample can again didispersi and then separated again.

When the UV rays to disinarkan emulsion, surfactant causing oil and water phases separated.

"What is interesting about this research is that through the addition of a surfactant fotoresponsif, they have been transformed into a mikroemulsi conventional fotoresponsif system," said Ted Lee, an expert in the field of responsive surfactant system at the University of Southern California, Los Angeles, United States.

This new method can be used in the release and distribution system-light activated for farmaseutik and agrochemical, Eastoe said. But he said the next challenge is how to make a surfactant-surfactant fotoresponsif a cheap, safe and environmentally friendly.

The separation of the mixture with light.
Scientists in England have been using light to separate the mixed-complex chemical mixtures. This method can be used to merecovery products and high value-nanoparticle nanoparticles of mixed-catalytic reaction mixture, they claim. Julian Eastoe, at the University of Bristol, and colleagues added surfactant-sensitive surface to the mikroemulsi. When they illuminate the mixture with UV light, causing surfactant oil phase and water phase in the emulsion separated.

Previously, researchers rely on heat, pH changes, or adding salt to separate the phases in mikroemulsi. This new method does not alter the chemical composition mikroemulsi or use as much energy with the separation that uses heat.

"We were quite impressed with the opportunities offered by the activated particles of light, colloids, and the interphase-interphase. This will be more enriching field of chemical engineering" Eastoe said. More importantly, added Eastoe, these divisions are reversible. After a separated dispersed sample, the sample can again didispersi and then separated again.

When the UV rays to disinarkan emulsion, surfactant causing oil and water phases separated.

"What is interesting about this research is that through the addition of a surfactant fotoresponsif, they have been transformed into a mikroemulsi conventional fotoresponsif system," said Ted Lee, an expert in the field of responsive surfactant system at the University of Southern California, Los Angeles, United States.

This new method can be used in the release and distribution system-light activated for farmaseutik and agrochemical, Eastoe said. But he said the next challenge is how to make a surfactant-surfactant fotoresponsif a cheap, safe and environmentally friendly.

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