A comparative study of the photochemistry of biphenyl adsorbed on cellulose and silicalite
The photochemistry of biphenyl (BP) was studied on two model solid supports, silicalite and cellulose, using time resolved diffuse reflectance techniques and product degradation analysis. The results showed that the photochemical behaviour of BP depends on the solid support. Ground state absorption...
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| Format: | Article |
| Language: | English |
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Wiley
2004-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/S1110662X04000248 |
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| _version_ | 1832565377594294272 |
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| author | J. P. Da Silva L. F. Vieira Ferreira |
| author_facet | J. P. Da Silva L. F. Vieira Ferreira |
| author_sort | J. P. Da Silva |
| collection | DOAJ |
| description | The photochemistry of biphenyl (BP) was studied on two model solid supports, silicalite and
cellulose, using time resolved diffuse reflectance techniques and product degradation analysis. The results
showed that the photochemical behaviour of BP depends on the solid support. Ground state absorption spectra
indicated a near planar configuration in the ground state. BP triplet state was the only species detected
on cellulose, while the radical cation (BP•+) was observed in silicalite. BP is relatively stable in both supports.
Prolonged irradiations in cellulose lead to the formation of the three monohydroxybiphenyls, while in
silicalite photooxidation products prevailed. |
| format | Article |
| id | doaj-art-463aa2bc85614290a0d9901adae07adb |
| institution | Kabale University |
| issn | 1110-662X |
| language | English |
| publishDate | 2004-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-463aa2bc85614290a0d9901adae07adb2025-02-03T01:08:00ZengWileyInternational Journal of Photoenergy1110-662X2004-01-016419319810.1155/S1110662X04000248A comparative study of the photochemistry of biphenyl adsorbed on cellulose and silicaliteJ. P. Da Silva0L. F. Vieira Ferreira1Centro de Química-Física Molecular, Instituto Superior Técnico, Lisboa 1049-001, PortugalCentro de Química-Física Molecular, Instituto Superior Técnico, Lisboa 1049-001, PortugalThe photochemistry of biphenyl (BP) was studied on two model solid supports, silicalite and cellulose, using time resolved diffuse reflectance techniques and product degradation analysis. The results showed that the photochemical behaviour of BP depends on the solid support. Ground state absorption spectra indicated a near planar configuration in the ground state. BP triplet state was the only species detected on cellulose, while the radical cation (BP•+) was observed in silicalite. BP is relatively stable in both supports. Prolonged irradiations in cellulose lead to the formation of the three monohydroxybiphenyls, while in silicalite photooxidation products prevailed.http://dx.doi.org/10.1155/S1110662X04000248 |
| spellingShingle | J. P. Da Silva L. F. Vieira Ferreira A comparative study of the photochemistry of biphenyl adsorbed on cellulose and silicalite International Journal of Photoenergy |
| title | A comparative study of the photochemistry of biphenyl adsorbed on cellulose and silicalite |
| title_full | A comparative study of the photochemistry of biphenyl adsorbed on cellulose and silicalite |
| title_fullStr | A comparative study of the photochemistry of biphenyl adsorbed on cellulose and silicalite |
| title_full_unstemmed | A comparative study of the photochemistry of biphenyl adsorbed on cellulose and silicalite |
| title_short | A comparative study of the photochemistry of biphenyl adsorbed on cellulose and silicalite |
| title_sort | comparative study of the photochemistry of biphenyl adsorbed on cellulose and silicalite |
| url | http://dx.doi.org/10.1155/S1110662X04000248 |
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