| Main Title |
Effects of Solar Radiation on Manganese Oxide Reactions with Selected Organic Compounds. |
| Author |
Bertino, D. J. ;
Zepp., R. G. ;
|
| CORP Author |
Environmental Research Lab., Athens, GA. |
| Publisher |
c1991 |
| Year Published |
1991 |
| Report Number |
EPA/600/J-91/175; |
| Stock Number |
PB91-231431 |
| Additional Subjects |
Photochemical reactions ;
Manganese oxides ;
Solar radiation ;
Ultraviolet radiation ;
Phenols ;
Organic compounds ;
Water pollution ;
Degradation ;
Reduction(Chemistry) ;
Catalysis ;
Electron transfer ;
Reprints ;
Dissolved organic matter
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB91-231431 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
9p |
| Abstract |
The effects of sunlight on aqueous redox reactions between manganese oxides (MnOx) and selected organic substances are reported. No sunlight-induced rate enhancement was observed for the MnOx oxidation of substituted phenols, anisole, o-dichlorobenzene, or p-chloroaniline. On the other hand, solar radiation did accelerate the reduction of manganese oxides by dissolved organic matter (DOM) from aquatic environments. The photoreduction of MnOx by DOM was little affected by molecular oxygen in air saturated water (250 microM), but was inhibited by 2,6-dichloroindophenol (0.5-6 microM), an excellent electron acceptor. MnOx reduction also was photosensitized by anthraquinone-2-sulfonate. These results indicate that the photoreduction probably involves electron transfer from excited states of sorbed DOM to the oxide surface. Wavelength studies indicated that ultraviolet-B radiation (280-320 nm) plays an important role in the photoreduction. (Copyright (c) 1991 by the American Chemical Society.) |
| Supplementary Notes |
Pub. in Environmental Science and Technology, v25 n7 p1267-1273 Jul 91. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Effects of Solar Radiation on Manganese Oxide Reactions with Selected Organic Compounds. |
| Category Codes |
68D; 99E; 99D |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
128229683 |
| Origin |
NTIS |
| Type |
CAT |
