J 1999

The Electrodeless Discharge Lamp: A Prospective Tool for Photochemistry

KLÁN, Petr, Jaromír LITERÁK a Milan HÁJEK

Základní údaje

Originální název

The Electrodeless Discharge Lamp: A Prospective Tool for Photochemistry

Autoři

KLÁN, Petr (203 Česká republika, garant), Jaromír LITERÁK (203 Česká republika) a Milan HÁJEK

Vydání

Journal of Photochemistry and Photobiology A: Chemistry, Amsterdam, The Netherlands, Elsevier Science, 1999, 1010-6030

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10401 Organic chemistry

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 1.034

Kód RIV

RIV/00216224:14310/99:00001184

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000083774300019

Klíčová slova česky

Fotochemie

Klíčová slova anglicky

Photochemistry

Štítky

Změněno: 7. 4. 2010 18:29, Mgr. Jaromír Literák, Ph.D.

Anotace

V originále

A simple photochemical reactor has been developed and tested for photochemical reactions. It consisted of an electrodeless discharge lamp (MWL) placed into the reactor vessel of a commercial microwave oven. The microwave (MW) field generated ultraviolet irradiation by the lamp at the same time as it interacted with a studied sample. This technique brings a unique possibility to study the simultaneous effect of both UV/VIS and MW irradiations on photochemical reactions. The use of MWL in a MW reactor has been studied in terms of (1) an operating MW power and temperature influence on the lamp, (2) solvent polarity influence, (3) MWL heating capabilities, and (4) dependence of the photoreaction efficiency on the MW power output. It was found that the lamp produced enough heat to quickly warm up any liquid to boil even in case of 'transparent' liquids in the MW field. An efficiency of light-induced photofragmentation reaction of valerophenone (Type II reaction) was investigated.

Česky

A simple photochemical reactor has been developed and tested for photochemical reactions. It consisted of an electrodeless discharge lamp (MWL) placed into the reactor vessel of a commercial microwave oven. The microwave (MW) field generated ultraviolet irradiation by the lamp at the same time as it interacted with a studied sample. This technique brings a unique possibility to study the simultaneous effect of both UV/VIS and MW irradiations on photochemical reactions. The use of MWL in a MW reactor has been studied in terms of (1) an operating MW power and temperature influence on the lamp, (2) solvent polarity influence, (3) MWL heating capabilities, and (4) dependence of the photoreaction efficiency on the MW power output. It was found that the lamp produced enough heat to quickly warm up any liquid to boil even in case of 'transparent' liquids in the MW field. An efficiency of light-induced photofragmentation reaction of valerophenone (Type II reaction) was investigated.

Návaznosti

MSM 143100011, záměr
Název: Struktura a vazebné poměry, vlastnosti a analýza syntetických a přírodních molekulových ansamblů
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Struktura a vazebné poměry, vlastnosti a analýza syntetických a přírodních molekulových ansamblů