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Glyphosate photodegradation: Stoichiometry, kinetic and catalytic effects
(Inderscience Enterprises, 2019-10)
Photodegradation of glyphosate (PMG) in aqueous solution by the action of UV-light and the catalytic effect of copper and copper-alga Ulva lactuca is described. The photodegradation kinetic reaction of PMG can be explained ...
Photodegradation of prednisolone under UVB solar irradiation. Role of photogenerated ROS in the degradation mechanism
(Royal Society of Chemistry, 2017-11)
The use of biologically active substances with anti-inflammatory properties such as corticosteroids has increased considerably in the last few decades. Particularly, the compound we are interested in, prednisolone (Predn), ...
Data fusion applied to the photodegradation study of ciprofloxacin using hyphenated detection systems (UV–Vis and fluorescence) and multivariate curve resolution
(Elsevier Science, 2018-05)
In this article, a new method was developed based on a flow system with hyphenated UV and fluorescence detection to study the photodegradation of ciprofloxacin. The photodegradation was investigated at both pH 7.0 and 9.0 ...
UV characterization and photodegradation mechanism of the fungicide chlorothalonil in the presence and absence of oxygen
(Pergamon-Elsevier Science Ltd, 2017-09)
An experimental and theoretical study of the UV spectrum of CT was carried out and the vibrationally resolved HOMO→LUMO transition is presented for the first time. The fluorescence spectrum has also been recorded. Furthermore, ...
Fast photodegradation of Orange II azo dye under visible light irradiation using a semiconducting n-p heterojunction of ZnO nanoparticles/polypyrrole as catalyst
(Springer, 2020-02)
Preparation of innovative nano- and microstructured heterojunctions consisting of two semiconductors for highly efficient p–n photocatalysts has been of growing interest due to their advanced applications. n-type ZnO ...
Flow-injection spectrophotometric method with on-line photodegradation for determination of ascorbic acid and total sugars in fruit juices
(Academic Press Inc Elsevier Science, 2011-02)
This article reports a flow-injection spectrophotometric determination (FIA) with a photodegradation step to determine ascorbic acid and total sugars. The flow-injection system includes a simple ultraviolet photoreactor ...
Photodegradation routes of the herbicide bromoxynil in solution and sorbed on silica nanoparticles
(Royal Society of Chemistry, 2014-04)
Some organic contaminants dissolved in natural waters tend to adsorb on suspended particles and sediments. In order to mimic the photodegradation routes in natural waters of bromoxynil (BXN) adsorbed on silica, we here ...
Photodegradation of hydroxylated N-heteroaromatic derivatives in natural-like aquatic environments: A review of kinetic data of pesticide model compounds
(Pergamon-Elsevier Science Ltd, 2005-12)
In the present review, the results published by our group and others related with the study of the kinetic behavior and, in some cases, the mechanism of the dye-promoted photooxygenation of several hydroxypyridines, ...
A new flow UV–Vis kinetics spectrophotometric method based on a photodegradative reaction for determining the oxidative stability of biodiesel
(Elsevier, 2020-02-15)
The biodiesel (BD) is an alternative fuel with some remarkable advantages compared to conventional diesel. However, the fatty acid methyl esters (FAMEs) which commonly compose BD are potentially oxidizable. This inherent ...
Ecology: The patagonian sun dance
(Cell Press, 2020-08-17)
Recent field experiments show how photodegradation and its legacy, increased microbial access to labile carbohydrates (photofacilitation), double rates of C loss to the atmosphere in a Mediterranean-type climate. The ...