Accession Number : ADA263232


Title :   Catalytic Agent Degradation on Oxide Films and in Microheterogeneous Solution Systems


Descriptive Note : Final rept. 7th Interim


Corporate Author : ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (SWITZERLAND)


Personal Author(s) : Gratzel, Michael


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a263232.pdf


Report Date : 18 Feb 1993


Pagination or Media Count : 32


Abstract : Studies over the period January 1990-January 1993 of grant No. DAJA45-90-C-0007 centered principally on investigations of the thermal and/or photolytic degradation of toxic compounds in aqueous solutions containing hydrogen peroxide (as sacrificial oxidant) and Fe(III) salts as catalytic agents. Extensive investigations were carried out on the simulants 4-NPDEP (paraoxon, 4-nitrophenyl diethyl phosphate), 4-NPIPP (4-nitrophenyl isopropyl phenyl phosphinate), DEP (diethyl ethyl phosphonate), NOX (nitro-o-oxylene), TSPAP (thiosulfuric acid-S-(2-diisopropyl amino ethyl)-O-phenylester, 4-NP (4- nitrophenol), 4-CP (4-Chlorophenol), and DBP (diethyl benzylphosponate). Both DBP and KHP (potassium hydrogen phthalate) were used as model compounds in attempts to elucidate the mechanism of the photocatalytic reaction in presence of Fe(III) salts.


Descriptors :   *DEGRADATION , *FILMS , *OXIDES , *CATALYSTS , THERMAL PROPERTIES , SALTS , PHENYL RADICALS , PHTHALATES , POTASSIUM , PHOSPHINATES , NITROPHENOLS , HYDROGEN PEROXIDE , NITROGEN COMPOUNDS , PHOSPHATES , SULFURIC ACID , BENZYL RADICALS , CHEMICAL COMPOUNDS , ETHYL RADICALS , PHENOLS , PHOSPHONATES , ESTERS , SOLUTIONS(MIXTURES) , IRON , PHOTOLYSIS , TOXICITY


Subject Categories : Toxicology
      Inorganic Chemistry
      Organic Chemistry
      Physical Chemistry


Distribution Statement : APPROVED FOR PUBLIC RELEASE