RADICAL SCAVENGING IN THE SONOLYSIS OF AQUEOUS-SOLUTIONS OF I-, BR-, AND N3-

被引：91

作者：

GUTIERREZ, M

HENGLEIN, A

IBANEZ, F

机构：

[1] HAHN MEITNER INST KERNFORSCH BERLIN GMBH,BEREICH S,W-1000 BERLIN 39,GERMANY

[2] CATHOLIC UNIV CHILE,FAC QUIM,SANTIAGO,CHILE

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1991年 / 95卷 / 15期

关键词：

ATOM REACTIONS;

D O I：

10.1021/j100168a061

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Iodide and bromide solutions are sonolyzed under pH conditions, where reactions of the products, i.e. hydrogen peroxide and iodine (or bromine), do not occur. The total yield of the products as well as the hydrogen yield is independent of solute concentration. The results are understood in terms of the competition of the OH + OH and the OH + solute reactions. A local concentration of 4 x 10(-3) M of the OH radicals in an interfacial region between the cavitation bubbles and the liquid is derived from the data obtained. The sonolysis of azide solutions is also investigated. The main product is nitrogen, which is formed in the reaction of N3- with OH radicals in the millimolar concentration range. At higher azide concentrations, additional nitrogen is formed as hydrogen atoms are also scavenged. Ammonia and hydrazine are minor products of the N3- sonolysis.

引用

页码：6044 / 6047

页数：4

共 50 条

[21] SYNTHESIS AND THERMAL INVESTIGATIONS OF [RH(BPY)3]X3 (BPY=2,2'-DIPYRIDYL X=CL-,BR-,I-,REO4-) AND [RH(BPY)3][CDNX2N+3] (X=CL-, BR-, I-) TYPE COMPLEXES
BUJEWSKI, A
WALEWSKI, M
GRZEDZICKI, K
THERMOCHIMICA ACTA, 1991, 185 (01) : 91 - 98
[22] ELECTROSTATIC EFFECT OF SPECIFICALLY ADSORBED ELECTRO-INACTIVE IONS UPON ELECTRODE PROCESSES .1. TETRATHIONATE ELECTROREDUCTION IN PRESENCE OF BR-,I-,SCN-,N3-, AND T1+
FORESTI, ML
GUIDELLI, R
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1974, 53 (02): : 219 - 233
[23] SONOLUMINESCENCE FROM AQUEOUS-SOLUTIONS OF BR-2 AND I-2
SEHGAL, C
SUTHERLAND, RG
VERRALL, RE
JOURNAL OF PHYSICAL CHEMISTRY, 1981, 85 (04): : 315 - 317
[24] Infrared spectra of hydrogen-bonded ion-radical complexes: I-·HCH2 and Br-·HCHBr
Sterling Chemistry Laboratory, Yale University, P.O. Box 208107, New Haven, CT 06520-8107, United States
不详
不详
J Chem Phys, 23 (10464-10468):
[25] Infrared spectra of hydrogen-bonded ion-radical complexes:: I-•HCH2 and Br-•HCHBr
Nielsen, SB
Ayotte, P
Kelley, JA
Weddle, GH
Johnson, MA
JOURNAL OF CHEMICAL PHYSICS, 1999, 111 (23): : 10464 - 10468
[26] IR study of the hydration of ClO4-, NO3-,I-, Br-,Cl-, and SO42- anions in aqueous solution
Bergstroem, Pehr-Ake
Lindgren, Jan
Kristiansson, Olof
Journal of Physical Chemistry, 1991, 95 (22):
[27] SONOLYSIS OF AQUEOUS-SOLUTIONS UNDER ARGON - DEPENDENCE OF THE RATE OF HYDROGEN-PEROXIDE FORMATION ON HYDROXYL RADICAL SCAVENGER CONCENTRATION
RASSOKHIN, DN
GOKZHAEV, MB
BUGAENKO, LT
KOVALEV, GV
MENDELEEV COMMUNICATIONS, 1994, (01) : 25 - 27
[28] ISOTOPIC EXCHANGE IN THE SONOLYSIS OF AQUEOUS-SOLUTIONS CONTAINING N-14,14(2) AND N-15,15(2)
HART, EJ
FISCHER, CH
HENGLEIN, A
JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (22): : 5989 - 5991
[29] FEATURES OF RADICAL POLYMERIZATION OF N,N-DIALKYLAMINOETHYL METHACRYLATE MONOMERS IN AQUEOUS-SOLUTIONS
MARTYNENKO, AI
KRAPIVIN, AM
ZEZIN, AB
TOPCHIEV, DA
KABANOV, VA
VYSOKOMOLEKULYARNYE SOEDINENIYA SERIYA B, 1982, 24 (08): : 580 - 582
[30] Mechanism of charge recombination and IPCE in ZnO dye-sensitized solar cells having I-/I3- and Br-/Br3- redox couple
Rani, Seema
Suri, Poonam
Mehra, Ram Mohan
PROGRESS IN PHOTOVOLTAICS, 2011, 19 (02): : 180 - 186

← 1 2 3 4 5 →