photoreduction


Also found in: Dictionary, Medical, Wikipedia.

photoreduction

[‚fōd·ō·ri′dək·shən]
(chemistry)
A chemical reduction that is produced by electromagnetic radiation. Also known as photochemical reduction.
(physical chemistry)
Addition of one or more electrons to a photoexcited chemical species.
Photochemical hydrogenation of a substance.
References in periodicals archive ?
For example the pulverization of graphitic carbon nitride (g-C3N4) to lesser magnitude with the aid of a planetary mill to improve and make contact between g-C3N4 and WO3 for preparation of the g-C3N4/WO3 hybrid system has been reported to demonstrate a high catalytic activity in the CO2 photoreduction to CH3OH [109].
[k.sub.app] values confirmed that the photoreduction process was effective and demonstrated that this method could be used as an alternative to increasing the photocatalytic activity of Ti[O.sub.2] under UV light irradiation.
Schrauzer and Guth [13] also discovered this phenomenon of [N.sub.2] photoreduction. UV irradiation of Ti[O.sub.2] with a large number of surface [Ti.sup.3+] species could produce N[H.sub.3] from [N.sub.2] and [H.sub.2]O under ambient conditions, which shows the species are actually the active sites for the reduction of [N.sub.2] to N[H.sub.3] [14].
Thanks to the photoactive properties of metalloporphyrins, we attached SERS-active gold nanoparticles on the surface of Z-CPPs via photoreduction of gold complexes under visible light illumination.
The photoreduction was measured by recording an increase in absorbance at 560 nm using UV-visible spectrophotometer (IRMECO U2020).
Many studies found that MG can induce a increase in [H.suib.2][O.sub.2] and [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] by inhibiting mitochondrial electron transfer chain, complex III and antioxidant enzymes, formating advanced glycation endproducts (AGEs), catalysing the photoreduction of [O.sub.2] at photosystem I (PS I), activating salicylhydroxamic acid-sensitive peroxidases (Chang et al., 2005; Wang et al., 2009; Desai et al., 2010; Hoque et al., 2016), which in turn induced [[[Ca.sup.2+]].sub.cyt], further triggering downstream physiological, biochemical and molecular events involved in stress tolerance (Fig.
The determination considers the enzyme's ability to inhibit the photoreduction of nitrotetrazolium blue chloride (NBT).
A novel twin reactor for CO2 photoreduction to mimic artificial photosynthesis.
The process is complex but the key physical step is to control the heating of the material during the photoreduction process.
[71] reported that MG accumulated in chloroplasts during the day time from triose phosphates, needs to be controlled by detoxification mechanisms, otherwise it will catalyse the photoreduction of [O.sub.2] to [O.sub.2.sup.-] at photosystem 1 and the increase in [O.sub.2.sup.-] production during photosynthesis further aggravates oxidative damage to plant cells.