the addition of an electron to a species whose energy has been increased by the absorption of a photon
2. chemistry
a chemical reduction that takes place in the presence of light or other electromagnetic radiation
photoreduction in American English
(ˌfoutourɪˈdʌkʃən)
noun
Chemistry
a reduction reaction induced by light
Word origin
[photo- + reduction]photo- is a combining form meaning “light” (photobiology); also used to represent “photographic” or “photograph” in the formation of compoundwords. Other words that use the affix photo- include: photocoagulation, photogen, photogravure, photolithography, photomultiplier
Examples of 'photoreduction' in a sentence
photoreduction
Reaction center (platinum nanoparticles) can be effectively coupled with the light harvesting microspheres via photoreduction.
Kai Liu, Manzar Abass, Qianli Zou, Xuehai Yan 2017, 'Self-assembly of biomimetic light-harvesting complexes capable of hydrogen evolution',Green Energy & Environmenthttp://www.sciencedirect.com/science/article/pii/S2468025716301170. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The rate of photoreduction increases for smaller nanoparticles but decreases at low temperature and higher pressure.
Kuzmin A., Anspoks A., Nataf L., Baudelet F., Irifune T. 2018, 'Influence of Pressure and Temperature on X-Ray Induced Photoreduction of NanocrystallineCuO', Latvian Journal of Physics and Technical Scienceshttp://www.degruyter.com/view/j/lpts.2018.55.issue-6/lpts-2018-0039/lpts-2018-0039.xml?format=INT. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Here, single-crystal spectroscopic fingerprinting has been applied to investigate the laser photoreduction of ferric haem in cytochrome c′.
Demet Kekilli, Tadeo Moreno-Chicano, Amanda K. Chaplin, Sam Horrell, Florian S. N.Dworkowski, Jonathan A. R. Worrall, Richard W. Strange, Michael A. Hough 2017, 'Photoreduction and validation of haem–ligand intermediate states in protein crystalsby in situ single-crystal spectroscopy and diffraction', IUCrJhttp://scripts.iucr.org/cgi-bin/paper?S2052252517002159. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
In this process, gold nanoparticles were simultaneously formed through photoreduction whilst polymerisationof two possible monomers was promoted.
Yaan Liu, Qin Hu, Fan Zhang, Christopher Tuck, Derek Irvine, Richard Hague, YinfengHe, Marco Simonelli, Graham A. Rance, Emily F. Smith, Ricky D. Wildman 2016, 'Additive Manufacture of Three Dimensional Nanocomposite Based Objects through MultiphotonFabrication', Polymershttp://www.mdpi.com/2073-4360/8/9/325. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Photocatalytic oxidation of benzyl alcohol and cyclohexene were used to test oxidation selectivity and 4-nitro-benzaldehyde to assess selective photoreduction.
Rossano Amadelli, Luca Samiolo, Andrea Maldotti, Alessandra Molinari, Delia Gazzoli 2011, 'Selective Photooxidation and Photoreduction Processes at 𝐓𝐢𝐨𝟐 Surface-Modifiedby Grafted Vanadyl', International Journal of Photoenergyhttp://dx.doi.org/10.1155/2011/259453. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
In contrast, with the adding of hole scavengers, which were formate ions, the photoreduction of chromium was very favorable.
Puangrat Kajitvichyanukul, Chulaluck Changul 2017, 'PHOTOCATALYTIC REMOVAL OF TR I- AND HEXA-VALENT CHROMIUM IONS FROM CHROME-ELECTROPLATING WASTEWATER', ASEAN Journal on Science and Technology for Developmenthttp://www.ajstd.org/index.php/ajstd/article/view/171. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)