photolysis

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photolysis

 [fo-tol´ĭ-sis]
chemical decomposition or change by the action of light or other radiant energy. adj., adj photolyt´ic.

pho·tol·y·sis

(fō-tol'i-sis),
Decomposition of a chemical compound or cleavage of a chemical bond by the action of light.
[photo- + G. lysis, dissolution]

photolysis

/pho·tol·y·sis/ (fo-tol´ĭ-sis) chemical decomposition or change by the action of light or other radiant energy.photolyt´ic

pho·tol·y·sis

(fō-tol'i-sis)
Decomposition of a chemical compound by the action of light.
[photo- + G. lysis, dissolution]

photolysis

chemical decomposition using light energy (‘splitting by light’). In 1933, Cornelius van Niel proposed that the initial step in PHOTOSYNTHESIS was the photolysis of water, leading to the release of oxygen ions (forming oxygen gas) and hydrogen ions which were involved in the reduction of NADP during the LIGHT REACTIONS. Recently it has become more common to explain the breakdown of water as a ‘separation of charge’, a fast spontaneous ionic reaction with water splitting into hydrogen (H+) and hydroxl (OH-) ions. The end result is the same as photolysis, but light is not thought to be involved in the process.

photolysis

chemical decomposition by light.
References in periodicals archive ?
A similar adhesion enhancement was also observed for samples photolysed under nitrogen, with a peak in adhesive force occurring near the sample surface, where the photoproduct concentration was a maximum.
The other oxidation product, R'O, is generally a carbonyl which can also be photolysed by sunlight.