PHOTOCHEMICAL DECOMPOSITION OF AN AQUEOUS-SOLUTION OF SODIUM SULFIDE

被引：10

作者：

DZHABIEV, TS

TARASOV, BB

机构：

[1] Institute for Structural Macrokinetics, Russian Academy of Sciences, Chernogolovka

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1993年 / 72卷 / 01期

关键词：

D O I：

10.1016/1010-6030(93)85080-R

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：

Photolysis of an aqueous (pH almost-equal-to 11) solution of sodium sulphide was studied on exposure to UV irradiation at lambda = 248 nm. H-2 and sulphane (H2S2) are the primary molecular products resulting from H atom interaction with HS- and recombination of two S.- anion radicals respectively. The limiting quantum yield (approximately 0.04) is much lower than that of the gas phase photolysis or radiolysis of hydrogen sulphide. The kinetic regulations observed are explained in terms of the Noyes model of scavenger competition with the cross-linked recombination of active intermediate species.

引用

页码：23 / 27

页数：5

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