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Chemical decomposition induced by light or other radiant energy.

pho′to·lyt′ic (fō′tə-lĭt′ĭk) adj.
pho′to·lyt′i·cal·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Chemistry) chemical decomposition caused by light or other electromagnetic radiation. Compare radiolysis
photolytic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(foʊˈtɒl ə sɪs)

the chemical decomposition of materials under the influence of light.
pho•to•lyt•ic (ˌfoʊt lˈɪt ɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


the breakdown of matter or materials under the influence of light. — photolytic, adj.
See also: Decaying
the breakdown of matter or materials under the influence of light. — photolytic, adj.
See also: Light
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.


The decomposition or disassociation of a compound when exposed to light of a certain wavelength.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
References in periodicals archive ?
Market Segmentation Production & Delivery Mode Centralized Production Pipeline Truck Cylinder Distributed Production (On-site Production) End Use Chemical Ammonia Methanol Resin Polymers Petroleum Refining Metal Processing Automotive Fuel Glass Industry Edible Fats and Oils Energy Others (Food, Electronics etc.) Production Method Steam Methane Reforming Partial Oxidation of Oil Coal Gasification Water Electrolysis Others (Photolysis, Biophotolysis etc.) Region North America Latin America Europe Asia Pacific Middle East & Africa (MEA) The comprehensive research report on global hydrogen market provides valuable insights with weighted analysis.
A new CFD model framework is developed by using Star-CCM+ multi-component chemical reaction model to study photolysis of HONO as well as spatial distributions of VOCs and reaction byproducts under varied indoor environmental conditions.
This deficiency of color removal can be explained as the direct photolysis of organic compounds has complex reaction mechanism, so it can be predicted that during UV light contact, dye might have undergone intermolecular transformations process.
Management believes that the demand for new products, including new models of walkie-talkies, electronic educational toys and photolysis deodoriser, will provide strong momentum for the growth in revenue in the long run.
The caged Ca-compound DM-Nitrophen was introduced into the presynaptic terminal via a patch pipette, and flash photolysis was applied, which elevated Ca uniformly (Fig.
Furthermore, since there is reaction due to photolysis only (without catalyst), this can be considered within the reaction rate expression.
Previously a blank test (photolysis) was made using no photocatalyst, and posteriorly in each solution, 0.350 g [28] of each photocatalytic powder was added and the reactions had the duration of 6 hours with removal of aliquots every 30 min that were analyzed through gas chromatography (GC-FID) in the chromatograph Varian CP-3800 with a flame ionization detector in column (Stabilvax-Restec 30 m, 0.25 mm inner diameter) using the technique SPME (solid phase microextraction) that adsorbs volatile organic compounds of aqueous samples on fiber (75 [micro]m Carboxen/PDMS, SUPELCO) by heating (headspace method) and flow rate [N.sub.2] 1.0m L x [min.sup.-1].
Sago wastewater was treated under UV irradiation to investigate the effect of photolysis, while the degradation of sago wastewater in the presence of commercial Ti[O.sub.2], SB, and MSB was performed to assess their individual effects on the degradation of organic pollutants.
Photolysis (film degradation due to light exposure in an inert atmosphere) of P3HT occurs several orders of magnitude slower than photo-oxidation [27].
Two preliminary photolysis tests were carried out under non-preheated, isothermal reaction conditions to confirm that the possible thermal and photolytic reactions are not appreciable.
The first volume covers science of the environmental chamber, the role of water in organic aerosol multiphase chemistry: focus on partitioning and reactivity, a critical review of atmospheric chemistry of alkoxy radicals, the role of nitric acid surface photolysis on the tropospheric cycling of reactive nitrogen species, the atmospheric chemistry of halogenated organic compounds, atmospheric reaction rate constants and kinetic isotope effects computed using the HEAT protocol and semi-classical transition state theory, and recent advances in the chemistry of OH and HO2 radicals in the atmosphere; field and laboratory measurements.