| 释义 |
sono-|ˈsəʊnəʊ|
comb. form of L. sonus sound: sonoˈchemistry, (the study of) the chemical action of sound waves; so sonoˈchemical a., of or pertaining to sonochemistry; ˌsonolumiˈnescence Chem., luminescence excited in a substance by the passage of sound waves through it; hence ˌsonolumiˈnescent a.; soˈnolysis Chem. [-lysis 1], the decomposition by ultrasound of a liquid, esp. water, as a result of the high temperatures generated within the cavities formed; also, the secondary reactions between the unrecombined decomposition products and the liquid itself or compounds dissolved in it; hence sonoˈlytic a.; sonoˈlytically adv.; (as a back-formation) ˈsonolyse v. trans., to subject to sonolysis; ˈsonolysed ppl. a.
1953Jrnl. Acoustical Soc. Amer. XXV. 655/1 In view of the frequent attributing of sonochemical reactions to the concomitant heating effect, it is curious that higher temperatures give smaller yields. 1966New Scientist 12 May 367/1 (caption) It now seems that a substantial part of the ‘fixed’ nitrogen available to marine plants and animals is due to sonochemical processes in waves.
1953A. Weissler in Jrnl. Acoustical Soc. Amer. XXV. 651 (heading) Sonochemistry: the production of chemical changes with sound waves. 1958New Scientist 25 Sept. 926/3 These conditions give rise to many remarkable effects which are now being studied such as sonoluminescence, ultrasonic cleaning and sonochemistry. 1966Ibid. 12 May 367/1 It might well be said that an understanding of sonochemistry is the key to the understanding of numerous chemical changes which take place around us in everyday life.
1939Jrnl. Amer. Chem. Soc. LXI. 2392/1 The luminescence which appears when sound waves pass through liquids has been called acoustic or sonic luminescence, for short, sonoluminescence. 1958Sonoluminescence [see sonochemistry above]. 1976Jrnl. Acoustical Soc. Amer. LX. 103/2 The sonoluminescence from a gas dissolved in water is inversely proportional to the thermal conductivity of the gas.
1974Ultrasonics XII. 25/1 Chemical and sonoluminescent effects occur in gaseous (pseudo) cavitation but never in vaporous cavitation.
1964Jrnl. Chem. Physics XL. 608/2 Water and dilute (0·1M) sodium formate solutions of different isotopic composition were subjected to sonolysis under argon... Hydrogen peroxide was produced. 1976Canad. Jrnl. Chem. LIV. 1114/1 In aqueous solution..the lifetime of chemically active radicals produced by sonolysis is larger than the lifetime of the cavitation bubble.
1964Jrnl. Chem. Physics XL. 608/2 In analogy to radiation chemistry of aqueous solutions, ‘molecular’ and atomic hydrogen are apparently produced under sonolytic conditions. 1966New Scientist 12 May 367/2 Sonolytically induced polymerization may..compete with chemically induced processes. 1976Canad. Jrnl. Chem. LIV. 1118/2 The mechanism whereby H2O2 is produced sonolytically has been the subject of some controversy.
1964Jrnl. Chem. Physics XL. 609/1 DCO2NaO·1M, 98%D (pH = 5·5), was sonolyzed in H2O. 1964Jrnl. Physical Chem. LXVIII. 1460/1 The analogy between the behaviour of radiolyzed and sonolyzed aqueous solutions has been pointed out in several studies. 1966New Scientist 12 May 366/1 We may thus envisage a sonolysed system as a heterogenous process wherein small centres of very high temperature exist in transient gas bubbles dispersed in a liquid medium. |