At the crossroad of photochemistry and radiation chemistry: formation of hydroxyl radicals in diluted aqueous solutions exposed to ultraviolet radiation

0484754 - FZÚ 2018 RIV GB eng J - Článek v odborném periodiku
Tomanová, K. - Přeček, Martin - Múčka, V. - Vyšín, Luděk - Juha, Libor - Čuba, V.
At the crossroad of photochemistry and radiation chemistry: formation of hydroxyl radicals in diluted aqueous solutions exposed to ultraviolet radiation.
Physical Chemistry Chemical Physics. Roč. 19, č. 43 (2017), s. 29402-29408. ISSN 1463-9076. E-ISSN 1463-9084
Grant CEP: GA MŠMT EF15_008/0000162; GA MŠMT LQ1606; GA ČR GA17-06479S; GA ČR GA13-28721S
Grant ostatní: ELI Beamlines(XE) CZ.02.1.01/0.0/0.0/15_008/0000162
Institucionální podpora: RVO:68378271
Klíčová slova: UV photolysis * water * aqueous solutions * quantum yields * OH radicals
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 3.906, rok: 2017

Formation yields of center dot OH radicals were precisely determined in aqueous solutions of coumarin-3-carboxylic acid and ferrous sulfate (i.e., Fricke dosimeter) exposed to 253.7 nm radiation delivered from a continuous source. Quantum yield of center dot OH radicals was determined as similar to 0.08, i.e., roughly one out of twelve photons, efficiently absorbed in UV-illuminated solutions, produced one center dot OH radical.
Trvalý link: http://hdl.handle.net/11104/0279898