Photodegradation in solution
نویسندگان
چکیده
منابع مشابه
[Photodegradation of nonylphenol polyethoxylates in aqueous solution].
Two lamps, including simulated sunlight lamp and UVA-365 nm lamp, were used to study the kinetics and changes of component distribution of NPEOs mixture in solution during photodegradation, as well as the effect of H2O2 on the photodegradation. LC-MS was used to analyze the products of NPEOs photodegradation. It was found that photodegradation of NPEOs occurred under both simulated sunlight and...
متن کاملPhotodegradation of the Antibiotic Penicillin G in the Aqueous Solution using UV-A Radiation
Background and purpose: Highly consumption of antibiotics and their entrance into the environment has increased concerns all over the world. These compounds enter to the environment through an incomplete metabolism and a considerable amount of them cannot be removed using usual waste filtration systems. Therefore, the present study aimed to investigate the feasibility of using ultraviolet radia...
متن کاملPhotodegradation Kinetics of Sodium Ceftiofur in Aqueous Solution Determined by LC Method
The stability of the broad-spectrum antibiotic ceftiofur was studied in order to investigate the kinetics of photodegradation of this drug, using a stability-indicating liquid chromatography (LC) method. The degradation was carried out in aqueous solutions, prepared from reference substance and two pharmaceutical products (Excenel and Topcef) containing sodium ceftiofur powder for injection, in...
متن کاملPhotodegradation of rhodamine B in aqueous solution via SiO2@TiO2 nano-spheres
Titania coated silica spheres (SiO2@TiO2) prepared by heterocoagulation of silica and titania nano-particles were investigated as catalyst in he photodegradation of rhodamine B (RB) in aqueous solution. The silica spheres were prepared by the well-known Stöber method and titania ol by a hydrolysis–condensation reaction in acidic media. The uncoated and coated particles were characterized by zet...
متن کاملEffect of dissolved organic compounds on the photodegradation of the herbicide MCPA in aqueous solution.
This work shows that the addition of phenol and 2-propanol as model organic compounds significantly decreases the direct photolysis quantum yield of 4-chloro-2-methylphenoxyacetic acid (MCPA) upon UVB irradiation in aqueous solution. Laser flash photolysis data suggest that 2-propanol is able to decrease the formation of the MCPA excited states under irradiation. A decrease from 0.54 to 0.34 of...
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 Applied Polymer Science
سال: 1960
ISSN: 0021-8995,1097-4628
DOI: 10.1002/app.1960.070041126