Single-Bubble Sonoluminescence of Suspensions in Dodecane of Porous SiO2 Nanoparticles with Lanthanide Ions

2021 ◽  
pp. 113542
Author(s):  
G.L. Sharipov ◽  
B.M. Gareev ◽  
A.M. Abdrakhmanov
Keyword(s):  
Sio2 Nanoparticles ◽  
Lanthanide Ions ◽  
Single Bubble ◽  
Porous Sio2 ◽  
Single Bubble Sonoluminescence

ACTIVATION OF SINGLE-BUBBLE SONOLUMINESCENCE AND RADIOLUMINESCENCE OF GD3+ AND DY3+ IONS BY ELECTRON ACCEPTORS IN AQUEOUS SOLUTIONS AS CONSEQUENCE OF THE HYDRATED ELECTRON GENERATION DURING WATER SONOLYSIS AND RADIOLYSIS

2021 ◽  
Vol 0 (4) ◽  
pp. 22-29
Author(s):  
G.L. SHARIPOV ◽  
◽  
B.M. GAREEV ◽  
A.M. ABDRAKHMANOV ◽  
L.R. YAKSHEMBETOVA ◽  
...  
Keyword(s):  
Free Energy ◽  
Aqueous Solutions ◽  
Theoretical Estimate ◽  
Electron Acceptors ◽  
Hydrated Electron ◽  
Lanthanide Ions ◽  
Single Bubble ◽  
Electron Generation ◽  
Electronically Excited ◽  
Single Bubble Sonoluminescence

Discovered the activation of moving single-bubble sonoluminescence and radioluminescence for Gd3+ and Dy3+ ions in aqueous solutions of GdCl3 and DyCl3 by the acceptor of a hydrated electron (eaq-): H+, Cd2+, etc. This activation is similar to the previously found activation by acceptors of eaq- radioluminescence and single-bubble sonoluminescence for the Tb3+ ion. Electron acceptors do not affect the quantum yield of the said lantha-nide ions photoluminescence. They also do not affect the yield of their multibubble sonoluminescence in aqueous solutions, since eaqdoes not appear in significant amounts during multibubble sonolysis. The found luminescence activation effects of lanthanide ions are interpreted as a consequence of the suppression of the quenching (reduction) reactions of these electronically excited ions eaq: *Ln3+ + eaq- → Ln2+ by acceptors. The feasibility of these reactions was predicted for all Ln3+ ions based on a theoretical estimate of their free energy. The discovery of the described effects of activation of the luminescence of Ln3+ ions is a consequence and serves as confirmation of not only the known generation of eaq- during radiolysis, but also its previously unknown generation during moving single-bubble sonolysis of water.

A Glycerol Drop in Water Boosts Single-Bubble Sonoluminescence

2003 ◽  
Vol 42 (Part 1, No. 2A) ◽  
pp. 716-720 ◽  
Author(s):  
Naser Harba ◽  
Shigeo Hayashi
Keyword(s):  
Single Bubble ◽  
Single Bubble Sonoluminescence

scholarly journals ULTRASOUND BEHAVIOR OF DIFFERENT CERAMIC PIEZOELEC-TRIC TRANSDUCERS APPLIED TO SONOLUMINESCENCE

Engevista ◽  
2010 ◽  
Vol 12 (1) ◽  
Author(s):  
Ana Lucia Ferreira de Barros ◽  
Gabriel Watanabe ◽  
Álvaro Luis Martins de Almeida Nogueira ◽  
Rafael Pereira Lopes
Keyword(s):  
Aqueous Medium ◽  
Light Emission ◽  
Piezoelectric Transducers ◽  
Single Bubble ◽  
Ultrasound Wave ◽  
Restricted Domain ◽  
Applied Physics ◽  
Single Bubble Sonoluminescence

Single-bubble sonoluminescence (SBSL) is a light-emission event from a stably oscillating bubble trapped at the pressure anti-node of a standing ultrasound wave, a phenomenon that has been studied intensively for a decade [1]. Using ceramic piezoelectric transducers PZT, we are able to irradiate a liquid inside a resonator flask by means of an ultrasound wave, and we eventually capture a bubble inside a restricted domain in the aqueous medium. The trapped bubble will expand and collapse at an accelerated rate, emitting light. To capture the bubble we perform some experiments using differently sized and shaped piezoelectric transducers, and we manage to verify their capacitance and impedance behavior in our sonoluminescence circuit. Our experiments were performed at Laboratory of Experimental and Applied Physics (LaFEA) at CEFET-RJ.

Dependence of single-bubble sonoluminescence on ambient pressure

Ultrasonics ◽  
2000 ◽  
Vol 38 (1-8) ◽  
pp. 566-569 ◽  
Author(s):  
M. Dan ◽  
J.D.N. Cheeke ◽  
L. Kondic
Keyword(s):  
Ambient Pressure ◽  
Single Bubble ◽  
Single Bubble Sonoluminescence

Plasma conditions during single bubble sonoluminescence.

2009 ◽  
Vol 126 (4) ◽  
pp. 2240
Author(s):  
Kenneth S. Suslick ◽  
David J. Flannigan
Keyword(s):  
Single Bubble ◽  
Single Bubble Sonoluminescence
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