%0 Journal Article
%@ 16103653
%A Das, R.
%A Dutta, B.K.
%A Maurino, V.
%A Vione, D.
%A Minero, C.
%D 2009
%F scholars:636
%J Environmental Chemistry Letters
%N 4
%P 337-342
%R 10.1007/s10311-008-0176-8
%T Suppression of inhibition of substrate photodegradation by scavengers of hydroxyl radicals: The solvent-cage effect of bromide on nitrate photolysis
%U https://khub.utp.edu.my/scholars/636/
%V 7
%X In this paper we show that bromide scavenges the �OH radicals formed upon photolysis of nitrate, before they leave the solvent cage. Bromide can thus inhibit the in-cage recombination between �OH and �NO2. The consequence is an increased generation of �NO2 and nitrite and of Br2 -� + �OH, compared to �OH alone in the absence of bromide. We show that this effect compensates for the lower reactivity of Br2 -� compared to �OH toward certain organic substrates, e.g. phenol and tryptophan. Our findings could lead to a deep revision of the present views of the role of bromide in saltwater photochemistry. © 2008 Springer-Verlag.
%Z cited By 21