Catalytic photooxidation of pentachlorophenol using semiconductor nanoclusters [electronic resource]
Pentachlorophenol (PCP) is a toxic chlorinated aromatic molecule widely used as fungicide, a bactericide and a wood preservation, and thus ubiquitous in the environment. The authors report photo-oxidation of PCP using a variety of nanosize semiconductor metal oxides and sulfides in both aqueous and...
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Online Access |
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| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2000.
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| Subjects: |
MARC
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| 245 | 0 | 0 | |a Catalytic photooxidation of pentachlorophenol using semiconductor nanoclusters |h [electronic resource] |
| 260 | |a Washington, D.C. : |b United States. Department of Energy ; |a Oak Ridge, Tenn. : |b distributed by the Office of Scientific and Technical Information, U.S. Department of Energy, |c 2000. | ||
| 300 | |a 36 pages : |b digital, PDF file. | ||
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| 500 | |a Journal Physical Chemical FT. | ||
| 500 | |a WILCOXON,JESS P. | ||
| 520 | 3 | |a Pentachlorophenol (PCP) is a toxic chlorinated aromatic molecule widely used as fungicide, a bactericide and a wood preservation, and thus ubiquitous in the environment. The authors report photo-oxidation of PCP using a variety of nanosize semiconductor metal oxides and sulfides in both aqueous and polar organic solvents and compare the photo-oxidation kinetics of these nanoclusters to widely studied bulk powders like Degussa P-25 TiO₂ and CdS. They study both the light intensity dependence of PCP photooxidation for nanosize SnO₂ and the size dependence of PCP photooxidation for both nanosize SnO₂ and MoS₂. They find an extremely strong size dependence for the latter which they attribute to its size-dependent band gap and the associated change in redox potentials due to quantum confinement of the hole-electron pair. The authors show that nanosize MoS₂ with a diameter of d=3.0 nm and an absorbance edge of ∼450 nm is a very effective photooxidation catalyst for complete PCP mineralization, even when using only visible light irradiation. | |
| 536 | |b AC04-94AL85000. | ||
| 650 | 7 | |a Chlorinated Aromatic Hydrocarbons. |2 local. | |
| 650 | 7 | |a Fungicides. |2 local. | |
| 650 | 7 | |a Preservatives. |2 local. | |
| 650 | 7 | |a Photolysis. |2 local. | |
| 650 | 7 | |a Oxidation. |2 local. | |
| 650 | 7 | |a Semiconductor Materials. |2 local. | |
| 650 | 7 | |a Titanium Oxides. |2 local. | |
| 650 | 7 | |a Cadmium Sulfides. |2 local. | |
| 650 | 7 | |a Molybdenum Sulfides. |2 local. | |
| 650 | 7 | |a Tin Oxides. |2 local. | |
| 650 | 7 | |a Catalytic Effects. |2 local. | |
| 650 | 7 | |a Waste Processing. |2 local. | |
| 650 | 7 | |a Energy Conservation, Consumption, And Utilization. |2 edbsc. | |
| 650 | 7 | |a Environmental Sciences. |2 edbsc. | |
| 710 | 2 | |a Sandia National Laboratories. |4 res. | |
| 710 | 1 | |a United States. |b Department of Energy. |4 spn. | |
| 710 | 1 | |a United States. |b Department of Energy. |b Office of Scientific and Technical Information. |4 dst. | |
| 856 | 4 | 0 | |u http://www.osti.gov/scitech/biblio/754317 |z Online Access |
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