Oxidative Activation and Degradation of Organophosphorus Pesticides Mediated by Iron Porphyrins
نویسندگان
چکیده
منابع مشابه
Total degradation of fenitrothion and other organophosphorus pesticides by catalytic oxidation employing Fe-TAML peroxide activators.
A Fe-TAML/H2O2 catalytic oxidation process achieves facile in-solution total degradation of fenitrothion and two other organophosphorus (OP) pesticides. Degradation products have been identified and quantified providing evidence for oxidative hydrolysis, oxidative desulfuration, perhydrolysis, and deep oxidation. Degradation pathways can be selected by pH control to completely obviate all toxic...
متن کاملDegradation of Organophosphorus Pesticides in Water during UV/H2O2 Treatment: Role of Sulphate and Bicarbonate Ions
The photodegradation of two organophosphorus pesticides, malathian and diazinon, by sulfate radicals and bicarbonate radicals in aqueous solution were studied. The effect of the operational parameters such as pH, salt concentration, water type, H2O2 concentration and initial concentration of pesticides was studied. Gas chromatography mass spectroscopy (GC-MS) was used for analyses of pesticides...
متن کاملThe lymphocytic cholinergic system and its modulation by organophosphorus pesticides.
Clinical and basic mechanism observations reveal interactions between neural and immune systems. These two systems create a complex network for recognizing danger to the host and its protection from outside pathogenic elements as well as from inside overreactions of inflammatory character. Here, we review the interactions of these two systems in relation to the effects of pesticides that clearl...
متن کاملAcute Toxicity of Organophosphorus Pesticides and Their Degradation By-products to Daphnia magna, Lepidium sativum and Vibrio fischeri
Organophosphorus pesticides (OPPs) attained the growing importance in pests control because of their rapid decomposition and less likely accumulation in environment. They are still of great concern however, for water sources contamination because of their high solubility in water and excessive usage. Their usage amounts were elevated after they were introduced as replacements for the highly per...
متن کاملEff ect of cold plasma on degradation of organophosphorus pesticides used on some agricultural products
Th is study investigated the potential eff ect of cold plasma on reducing residues of pesticides diazinon and chlorpyrifos in apples and cucumbers and its eff ects on property of products. Two separate concentrations of each pesticide with 500 and 1,000 ppm were prepared and the samples were inoculated by dipping them into the solutions. All samples treated with pesticides were exposed to cold ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Pesticide Science
سال: 2005
ISSN: 1348-589X,1349-0923
DOI: 10.1584/jpestics.30.103