Photooxidation - an overview | ScienceDirect Topics
网页Photooxidation is the process of producing hydroperoxides from unsaturated fatty acids and esters in the presence of oxygen, light energy, and a photosensitizer.
Photo-oxidation of polymers - Wikipedia
网页Photo-oxidation is a form of photodegradation and begins with formation of free radicals on the polymer chain, which then react with oxygen in chain reactions. For many polymers the general autoxidation mechanism is a reasonable approximation of …
Photooxidation - an overview | ScienceDirect Topics
网页The necessary factors for photooxidation are solar radiation and light-absorbing molecules (chromophores). Since few petroleum hydrocarbons absorb sunlight efficiently, most photooxidation occurs via indirect photoreactions.
Photooxygenation - Wikipedia
网页A photooxygenation is a light-induced oxidation reaction in which molecular oxygen is incorporated into the product (s). [1][2] Initial research interest in photooxygenation reactions arose from Oscar Raab's observations in 1900 that the combination of light, oxygen and photosensitizers is highly toxic to cells. [3]
Photooxidation - an overview | ScienceDirect Topics
网页Photooxidation is a process that occurs mainly on the surface of the material. Thickness of polymer films or plates is an important factor in photodegradation process. In thick polymeric materials (thickness >1 mm), the process is limited to a thin surface layer, usually from a few 100 μm up to 1 mm (Rabek, 1996).
Photooxidation triggered ultralong afterglow in carbon nanodots …
网页2024年3月15日 · The special photooxidation induced luminescence mechanism enables the CDs to effectively avoid dissolved oxygen induced quenching, thereby achieving ultralong-persistent NIR afterglow in aqueous...
Visible light sensitizer-catalyzed highly selective photo oxidation ...
网页2018年2月2日 · Nevesely, T., Svobodova, E., Chudoba, J., Sikorski, M. & Cibulka, R. Efficient metal-free aerobic photooxidation of sulfides to sulfoxides mediated by a vitamin B 2 derivative and visible light....
Chemical and Photo Oxidation | SpringerLink
网页In the aquatic and atmospheric environments, oxidation by free radicals, singlet oxygen (1O2) or ozone (O3) can be an important fate process for many organic chemicals. An understanding of how these oxidants behave toward …
Photooxidation Definition & Meaning - Merriam-Webster
网页The meaning of PHOTOOXIDATION is oxidation under the influence of radiant energy (such as light).
Aromatic Photo-oxidation, A New Source of Atmospheric Acidity
网页We highlight that the estimated yields of HCOOH from ketene-enol oxidation are up to 60% in polluted urban areas and greater than 30% even in the continental background. Our theoretical calculations are further supported by a chamber experiment evaluation.
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