photochemical


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Related to photochemical: photochemical smog

pho·to·chem·i·cal

(fō'tō-kem'i-kăl),
Denoting chemical changes caused by or involving light.

pho·to·chem·i·cal

(fō'tō-kem'i-kăl)
Denoting chemical changes caused by or involving light.

photochemical 

Relating to a chemical change as a result of the absorption of light. Example: The action of light on rhodopsin in the photoreceptors of the retina. See rhodopsin.
References in periodicals archive ?
The photochemical oxidation process was also used to remove the dyes from industrial waste water [22-24].
The decrease in this ratio indicates a reduction in the photochemical efficiency of PSII (Silva et al., 2015).
The results therein not only demonstrate that ketorolac (an NSAID) can be photochemically degraded but also, by analyzing a hospital effluent in a developing country and establishing a correlation with elsewhere published studies regarding toxicity, urge the update of environmental legislation in developing countries not only to regulate the pollutant discharge but also mainly to motivate the update of current treatment plants with the implementation of cutting-edge technologies, either photochemical or electrochemical.
In photochemical machining, metal removal takes place by etching.
polygama show that, even in the absence of visual injuries, fluoride constitutes a stress factor for the plant, and this stress manifests in the form of excess energy dissipation, considering that the increase in qN is related to how much of the electromagnetic energy was not destined to the conversion of photochemical products ATP and NAD(P)[H.sup.+]-[H.sup.+] and consists a reversible regulatory and protective mechanism that involves changes in the thylakoid membranes triggered by transthylakoidal pH gradient, transition states and photoinactivation of PSII (Rohacek, Soukupova, & Bartak, 2008).
Based on these results, we concluded that higher concentrations of exogenous malate inhibit photosynthesis and PSII photochemical activity, perhaps in part because of the rise in NADPH/NADP ratio in chloroplasts in C3 rice plants.
In addition, the photochemical stability of vitamin D3 against ultraviolet light was greatly improved by encapsulation.
Key words: Triticum aestivum; net photosynthetic rate; light response curve; photochemical efficiency; yield.
The first ozone monitoring in ambient air in Eastern Slavonia was reported for the growth season in 2002 when there were no significant photochemical pollution problems [12].
We have recently reported on the synthesis, characterization, and photophysical and photochemical properties of [2,9,16,23-tetra-(salicylaldimino)phthtalocyaninatozinc(II)] and [2,9,16,23-Tetra-{8-hydroxyquinolinato-salicydenaminatozinc(n)|phthtalocyaninato-zinc(n)] [21].
Although ozone chemistry has been extensively investigated in many chamber experiments and in photochemical modelling studies, there are still significant difficulties in accurately predicting environmental ozone levels and its spatial distribution, behavior and associated trends.
Most recently, Chen developed a novel bi-functional electrode technology, which integrates electrochemical oxidation and photochemical degradation for water purification.