Results 1 to 10 of about 3,837 (213)

The Photodegradation of Quercetin: Relation to Oxidation [PDF]

open access: yesMolecules, 2012
The photostability of quercetin in alcoholic solutions was studied. Both UVA and UVB light induced degradation of quercetin, yielding a single product 1 deriving from oxidation and addition of an alcohol molecule to the 2,3 double bond. The same mechanism operated when quercetin was dissolved in alkaline solutions, and again a product 2 due to ...
Stefano Dall'Acqua   +2 more
exaly   +5 more sources

Photodegradation of atmospheric chromophores: changes in oxidation state and photochemical reactivity [PDF]

open access: yesAtmospheric Chemistry and Physics, 2021
Atmospheric chromophoric organic matter (COM) plays a fundamental role in photochemistry and aerosol aging. However, the effects of photodegradation on chemical components and photochemical reactivity of COM remain unresolved.
Z. Mu, Q. Chen, L. Zhang, D. Guan, H. Li
doaj   +1 more source

Indirect photodegradation of ofloxacin in simulated seawater: Important roles of DOM and environmental factors

open access: yesFrontiers in Marine Science, 2023
Dissolved organic matter (DOM) plays a non-negligible role in the indirect photodegradation of organic contaminants. This research investigated the roles of DOM and the environmental factors (salinity, pH, NO3−, and HCO3−) in the indirect ...
Shukai Liu   +7 more
doaj   +1 more source

Photodegradable antimicrobial agents − synthesis, photodegradation, and biological evaluation

open access: yesRSC Advances, 2021
The synthesis of several new compounds containing an ethanolamine moiety are reported, of which two exhibit promising antimicrobial activity (at the 6 μM level).
Vebjørn Eikemo   +2 more
openaire   +6 more sources

Solvent effects on photodegradation of CI Reactive Orange 16 by simulated solar light [PDF]

open access: yesHemijska Industrija, 2008
Organic solvents may appear in wastewaters and other industrial waste streams containing dyes, therefore, their photodegradation catalyzed by TiO2 should be investigated.
Mijin Dušan Ž.   +3 more
doaj   +1 more source

Direct observation of the photodegradation of anthracene and pyrene adsorbed onto mangrove leaves. [PDF]

open access: yesPLoS ONE, 2014
An established synchronous fluorimetry method was used for in situ investigation of the photodegradation of pyrene (PYR) and anthracene (ANT) adsorbed onto fresh leaves of the seedlings of two mangrove species, Aegiceras corniculatum (L.) Blanco (Ac) and
Ping Wang, Tun-Hua Wu, Yong Zhang
doaj   +1 more source

Dissolved organic matter photodegradation in a water supply reservoir on temperate oceanic climate (Cfb): a case study of Passaúna reservoir, Brazil [PDF]

open access: yesRBRH, 2022
Photodegradation is an important process for aquatic metabolism, related to the dissolved organic matter (DOM) transformation in water. For example, in a water supply reservoir, DOM is an important parameter since it can react and form disinfection by ...
Carolina Ferreira de Souza   +2 more
doaj   +1 more source

Photodegradation of Flucetosulfuron, a Sulfonylurea-Based Herbicide in the Aqueous Media Is Influenced by Ultraviolet Irradiation

open access: yesJournal of Xenobiotics, 2021
Photodegradation (photolysis) causes the breakdown of organic pesticides molecules by direct or indirect solar radiation energy. Flucetosulfuron herbicide often encounters water bodies.
Arnab Goon   +8 more
doaj   +1 more source

Photodegradable Toners for Electrophotography I. Photodegradability of Matrix Resin [PDF]

open access: yesPolymer Journal, 1996
In this study we copolymerized phenyl isopropenyl ketone into the known toner resin for electrophotography and measured spectral and molecular weight changes as well as photodegradability by mid/near or deep UV ...
Sugita, Kazuyuki   +7 more
openaire   +1 more source

Factors influencing the photodegradation of acid orange 8 by nitrocellulose membranes

open access: yesFrontiers in Environmental Science, 2022
Nitrocellulose membranes (NCM) have broad application prospects in the field of organic wastewater treatment. In this research, acid orange 8 was used as the target pollutant, and the effects of factors, such as concentration, light intensity, anions ...
Li Wu   +5 more
doaj   +1 more source

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