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About the sonoluminescent spectral portrait of gasoline water pollution.
Ultrason Sonochem
July 2024
High-energy Chemistry and Catalysis Laboratory, Institute of Petrochemistry and Catalysis UFRC RAS, 141 Prospekt Oktyabrya, Ufa 450075, Russia.
Single-bubble sonoluminescence spectra of the following samples were recorded in the modes of standing and moving bubble in liquid near the center of its levitation under the action of ultrasound: water contaminated with additives of commercial gasoline (1.5 - 38 mg·L), water with additives of individual gasoline components (hexane, benzene, toluene, p-xylene, naphthalene, anthracene, and p-terphenyl), and solutions of these gasoline components in hexane. Characteristic bands λ of gasoline component emitters are recorded in the sonoluminescence spectra of a moving bubble for water samples contaminated with additives of commercial gasoline: 290 (p-xylene), 340 (p-terphenyl), 381, 399, 424, 449 (anthracene), and 438, 474, 516, 564 nm (C, a hydrocarbon decomposition product during sonolysis).
View Article and Find Full Text PDFColloidal suspensions of EuCl, EuBr, and EuSO nanoparticles (<50 nm) in dodecane and EuSO in 70% HSO were synthesized. Moving single-bubble sonoluminescence (m-SBSL) spectra were obtained for a bubble performing radial oscillations in these suspensions and translational motions at the antinode of a standing ultrasonic wave with a frequency of about 27 kHz. In these spectra (at a spectral resolution of 10 nm), the sono-excited luminescence bands of the Eu ion were detected for the first time, coinciding in the shape and position of the maxima (404, 413, and 377 nm for EuCl, EuBr, and EuSO, respectively) with the bands of Eu located in a crystalline environment in the photoluminescence spectra of nanoparticles of europium salts in suspensions.
View Article and Find Full Text PDFSingle-Bubble Sonoluminescence of Colloidal Suspensions as a New Technique for Sonoluminescent Spectroscopic Analysis.
Appl Spectrosc
November 2022
Institute of Petrochemistry and Catalysis, Ufa Federal Research Center, 133882Russian Academy of Sciences, Ufa, Russian Federation.
This is a brief research review on the new method of development for element luminescence determination, namely, sonoluminescent spectroscopy. The advantages and disadvantages of the technique of multibubble sonoluminescence (MBSL) in solutions used to apply this method are discussed. It has been shown that the use of a new technique moving single-bubble sonoluminescence (m-SBSL) in colloidal suspensions of nanoparticles (<50 nm) containing the elements analyzed seems preferable for this purpose.
View Article and Find Full Text PDFPorous SiO nanoparticles containing ruthenium or sulfur compounds: Sonochemical producing and sonoluminescence in aqueous suspensions.
Ultrason Sonochem
March 2020
Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, Ufa, Russian Federation.
Aqueous suspensions of silicon dioxide porous nanoparticles (average size 10-30 nm, average pore size 5.8 nm) were obtained via ultrasonic dispersing. As was shown through recording SiO molecular lines in a moving single-bubble sonoluminescence spectrum, these nanoparticles penetrate into the bubble and then undergo decay.
View Article and Find Full Text PDFSpectroscopic measurement of electronic temperature in the bubbles during single- and multibubble sonoluminescence of metal carbonyl solutions and nanodispersed suspensions.
Ultrason Sonochem
March 2019
Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, Ufa, Russian Federation.
It is for the first time that we have obtained emission-line spectra of metal atoms during single-bubble sonoluminescence of metal carbonyl W(CO), Mo(CO), Cr(CO) solutions in dodecane and similar spectra during single- and multibubble sonoluminescence of nanodispersed Cr(CO) suspensions in water, 83% HSO and 74% HPO. Nanodispersed suspensions with an average particle size of 15-20 nm were obtained through sonodispersing and filtering Cr(CO) crystals in water. The method for comparing the intensities of two atomic metal lines made it possible to measure the electronic temperatures achieved in cavitation bubbles under different modes of sonolysis that vary in the range of (4.
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