The Electrodeless Discharge Lamp: A Prospective Tool for
Photochemistry. Part 4: Temperature- and Envelope
Material-Dependent Emission Characteristics

J 2003

The Electrodeless Discharge Lamp: A Prospective Tool for Photochemistry. Part 4: Temperature- and Envelope Material-Dependent Emission Characteristics

MÜLLER, Pavel, Petr KLÁN and Vladimír CÍRKVA

Basic information

Original name

The Electrodeless Discharge Lamp: A Prospective Tool for Photochemistry. Part 4: Temperature- and Envelope Material-Dependent Emission Characteristics

Authors

MÜLLER, Pavel (203 Czech Republic, belonging to the institution), Petr KLÁN (203 Czech Republic, guarantor, belonging to the institution) and Vladimír CÍRKVA (203 Czech Republic)

Edition

Journal of Photochemistry and Photobiology A: Chemistry, Amsterdam, The Netherlands, Elsevier Science, 2003, 1010-6030

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10401 Organic chemistry

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 1.693

RIV identification code

RIV/00216224:14310/03:00007991

Organization unit

Faculty of Science

Keywords in English

Electrodeless Discharge Lamp; photochemistry; microwave

Abstract

V originále

This work extends our previous research on an original photochemical reactor - the electrodeless discharge lamp (EDL) inside a reaction mixture that generates ultraviolet radiation in the microwave (MW) field. This arrangement was found to be a straightforward solution for homogeneous as well as heterogeneous photochemical experiments that need to be carried out at higher temperatures. Here we report the emission characteristics (250 - 600 nm) of EDL as a function of temperature, MW output power of the reactor, EDL envelope material, and properties of solvents used in photochemical reactions. Relative intensities of the individual emission peaks were found to be largely dependent on temperature (in the region of 35 to 174 oC): the short wavelength bands (particularly the 254-nm peak) were suppressed with increasing temperature. Solvents absorbing MW significantly reduced the EDL emission intensity. It is concluded that the right choice of EDL envelope material and reaction conditions is essential for an efficient course of a photochemical process in this experimental arrangement.

Links

GA203/02/0879, research and development project

Name: Vliv mikrovlnného záření na fotochemické reakce

Investor: Czech Science Foundation, Microwave Irradiation Effect on Photochemical Reactions

MSM 143100005, plan (intention)

Name: Strukturně-funkční vztahy biomolekul a jejich role v metabolismu

Investor: Ministry of Education, Youth and Sports of the CR, Biomolecular Structure-function Relationships and their role in the Metabolism

Citovat

MÜLLER, Pavel, Petr KLÁN and Vladimír CÍRKVA. The Electrodeless Discharge Lamp: A Prospective Tool for Photochemistry. Part 4: Temperature- and Envelope Material-Dependent Emission Characteristics. Journal of Photochemistry and Photobiology A: Chemistry. Amsterdam, The Netherlands: Elsevier Science, 2003, vol. 158, No 1, p. 1-5. ISSN 1010-6030.

@article{485793,
   author = {Müller, Pavel and Klán, Petr and Církva, Vladimír},
   article_location = {Amsterdam, The Netherlands},
   article_number = {1},
   keywords = {Electrodeless Discharge Lamp; photochemistry; microwave},
   language = {eng},
   issn = {1010-6030},
   journal = {Journal of Photochemistry and Photobiology A: Chemistry},
   title = {The Electrodeless Discharge Lamp: A Prospective Tool for Photochemistry. Part 4: Temperature- and Envelope Material-Dependent Emission Characteristics},
   url = {http://www.sciencedirect.com/science/article/pii/S1010603003001011},
   volume = {158},
   year = {2003}
}

TY  - JOUR
ID  - 485793
AU  - Müller, Pavel - Klán, Petr - Církva, Vladimír
PY  - 2003
TI  - The Electrodeless Discharge Lamp: A Prospective Tool for Photochemistry. Part 4: Temperature- and Envelope Material-Dependent Emission Characteristics
JF  - Journal of Photochemistry and Photobiology A: Chemistry
VL  - 158
IS  - 1
SP  - 1-5
EP  - 1-5
PB  - Elsevier Science
SN  - 10106030
KW  - Electrodeless Discharge Lamp
KW  - photochemistry
KW  - microwave
UR  - http://www.sciencedirect.com/science/article/pii/S1010603003001011
N2  - This work extends our previous research on an original photochemical reactor - the electrodeless discharge lamp (EDL) inside a reaction mixture that generates ultraviolet radiation in the microwave (MW) field. This arrangement was found to be a straightforward solution for homogeneous as well as heterogeneous photochemical experiments that need to be carried out at higher temperatures. Here we report the emission characteristics (250 - 600 nm) of EDL as a function of temperature, MW output power of the reactor, EDL envelope material, and properties of solvents used in photochemical reactions. Relative intensities of the individual emission peaks were found to be largely dependent on temperature (in the region of 35 to 174 oC): the short wavelength bands (particularly the 254-nm peak) were suppressed with increasing temperature. Solvents absorbing MW significantly reduced the EDL emission intensity. It is concluded that the right choice of EDL envelope material and reaction conditions is essential for an efficient course of a photochemical process in this experimental arrangement.
ER  -

MÜLLER, Pavel, Petr KLÁN and Vladimír CÍRKVA. The Electrodeless Discharge Lamp: A Prospective Tool for Photochemistry. Part 4: Temperature- and Envelope Material-Dependent Emission Characteristics. \textit{Journal of Photochemistry and Photobiology A: Chemistry}. Amsterdam, The Netherlands: Elsevier Science, 2003, vol.~158, No~1, p.~1-5. ISSN~1010-6030.

Detailed Information on Publication Record