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Activating Molecules, Ions, and Solid Particles with Acoustic Cavitation
JoVE 杂志
化学
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JoVE 杂志 化学
Activating Molecules, Ions, and Solid Particles with Acoustic Cavitation

Activating Molecules, Ions, and Solid Particles with Acoustic Cavitation

DOI:
10.3791/51237-v

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14:22 min

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April 11, 2014

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, , ,
1Marcoule Institute for Separative Chemistry,UMR 5257 CEA-CNRS-UM2-ENSCM

Chapters

  • 00:04Title
  • 02:20Measurement of Uranium Sonoluminescence
  • 05:31Sonochemical Reduction of Pt(IV) in Aqueous Solutions
  • 09:29Sonochemical Synthesis of Plutonium Colloids
  • 10:29Results: Sonoluminescence Spectra of Uranyl Ions and TEM Images of Pt Nanoparticles
  • 13:29Conclusion

Summary

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Acoustic cavitation in liquids submitted to power ultrasound creates transient extreme conditions inside the collapsing bubbles, which are the origin of unusual chemical reactivity and light emission, known as sonoluminescence. In the presence of noble gases, nonequilibrium plasma is formed. The "hot" particles and the photons generated by collapsing bubbles are able to excite species in solution.

Tags

Keywords: Acoustic CavitationSonoluminescenceSonochemistryUltrasoundPlatinum NanoparticlesPlutonium Colloids

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