Study of TiO{sub 2} catalyzed photodegradation of diethyl
Conference
·
OSTI ID:370094
- Florida International Univ., Miami, FL (United States)
A number of organophosphorous compounds present a significant threat to the environment. We chose to use diethylmethylphosphonate (DEMP) as a model for these toxic species. The models are utilized to investigate the TiO{sub 2} photocatalysis as a technology for the remediation of organophosphorous compounds. A kinetic analysis of TiO{sub 2} catalyzed photodegradation of diethyl methylphosphonate in air saturated aqueous solutions will be presented. The initial and overall degradation rates were determined as a function of initial concentrations of DEMP. Since phosphate is a major product from the photocatalysis of DEMP, the inhibitory effects of the phosphate on the degradation and the effects of solution pH were investigated. A comparison of the efficiency of a photoreactor to natural solar irradiation will be presented and the potential for sonication as an accelerate for TiO{sub 2} photocatalysis is being explored.
- OSTI ID:
- 370094
- Report Number(s):
- CONF-960376--
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
54 ENVIRONMENTAL SCIENCES
AQUEOUS SOLUTIONS
CATALYTIC EFFECTS
CHEMICAL WARFARE AGENTS
DECOMPOSITION
IRRADIATION
ORGANIC PHOSPHORUS COMPOUNDS
PH VALUE
PHOSPHONATES
REMEDIAL ACTION
SOUND WAVES
TITANIUM OXIDES
WASTE PROCESSING
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
54 ENVIRONMENTAL SCIENCES
AQUEOUS SOLUTIONS
CATALYTIC EFFECTS
CHEMICAL WARFARE AGENTS
DECOMPOSITION
IRRADIATION
ORGANIC PHOSPHORUS COMPOUNDS
PH VALUE
PHOSPHONATES
REMEDIAL ACTION
SOUND WAVES
TITANIUM OXIDES
WASTE PROCESSING