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Reduction nitrates, photo

Fig. 3 Results for the photocatalytic reduction of nitrate in the presence of 0.04 M HCOOH as hole scavenger over titania and Ag/Ti02 catalysts prepared by impregnation (IMP) or photodeposition (Photo) and comparing use of Degussa P25 (49 m g ) with Hombikat UV 100 (250 m g ) as supports. ... Fig. 3 Results for the photocatalytic reduction of nitrate in the presence of 0.04 M HCOOH as hole scavenger over titania and Ag/Ti02 catalysts prepared by impregnation (IMP) or photodeposition (Photo) and comparing use of Degussa P25 (49 m g ) with Hombikat UV 100 (250 m g ) as supports. ...
A = autotrophs, mostly photo-autotrophs Am = photo-autotrophs with some (myxotrophic) ability to obtain and use dissolved or particulate organics H =heterotrophs Hm = heterotrophs with autotroph symbionts, thus also myxotrophs. (1) This column gives the typical atomic ratios of subsistence quotas in the autotrophs or myxo-autotrophs raphidophyte ratios are based on those cited by Yamaguchi etal. (2001) (2) This column indicates iron need in autotrophs and myxo-autotrophs, on the basis that phycobiliproteins require additional iron, as does N-fixation or nitrate-reduction (3) This column gives optimal atomic ratios for the heterotrophs. [Pg.328]

The cessation of nitrate reduction on transfer of green algae to ammonium has been attributed to the uncoupling effect of this ion on noncyclic photo-phosphorylatim and a resultant increase in intracellular reducing power and ADP. Supporting this proposal are the findings that arsenate can duplicate the ammonium effect and the inactivation by anunonium ions can be prevented by treatment of cells with DCMU, an inhibitor of photosynthetic electron transfer (Losada, 1973, 1975 Chaparro et al., 1976). It has been demonstrated that ADP and/or NADH inactivate nitrate reductase in vitro... [Pg.151]


See other pages where Reduction nitrates, photo is mentioned: [Pg.50]    [Pg.82]    [Pg.468]    [Pg.122]    [Pg.279]    [Pg.519]    [Pg.640]    [Pg.258]    [Pg.77]    [Pg.78]    [Pg.301]    [Pg.700]    [Pg.85]    [Pg.37]    [Pg.7155]    [Pg.80]    [Pg.382]    [Pg.99]    [Pg.106]    [Pg.40]   
See also in sourсe #XX -- [ Pg.146 ]




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Photo-reduction

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