The Electrodeless Discharge Lamp: A Prospective Tool for Photochemistry
| Autoři | |
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| Rok publikování | 1999 |
| Druh | Článek v odborném periodiku |
| Časopis / Zdroj | Journal of Photochemistry and Photobiology A: Chemistry |
| Fakulta / Pracoviště MU | |
| Citace | |
| Obor | Organická chemie |
| Klíčová slova | Photochemistry |
| Popis | 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. |
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