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https://hdl.handle.net/10316/10731
Título: | A comparative study of water soluble 5,10,15,20-tetrakis(2,6-dichloro-3-sulfophenyl)porphyrin and its metal complexes as efficient sensitizers for photodegradation of phenols | Autor: | Monteiro, Carlos J. P. Pereira, Mariette M. Azenha, M. Emilia Burrows, Hugh D. Serpa, Carlos Arnaut, Luís G. Tapia, M. J. Sarakha, Mohamed Wong-Wah-Chung, Pascal Navaratnam, Suppiah |
Data: | 28-Jun-2005 | Editora: | Royal Society of Chemistry | Citação: | Photochemical & Photobiological Sciences. 4 (2005) 617-624 | Resumo: | 5,10,15,20-Tetrakis(2,6-dichloro-3-chlorosulfophenyl)porphyrin and its tin and zinc complexes were synthesized with high yields and fully characterized. The corresponding water-soluble 5,10,15,20-tetrakis(2,6-dichloro-3-sulfophenyl)porphyrins were obtained by hydrolysis with water. An extensive photophysical study of the new water soluble porphyrinic compounds was carried out including absorption and fluorescence spectra, fluorescence quantum yields, triplet absorption spectra, triplet lifetimes, triplet and singlet oxygen quantum yields. These sensitizers were successfully used in the photodegradation of 4-chlorophenol and 2,6-dimethylphenol. A comparison is made of their efficiencies, and some mechanistic considerations are highlighted. | URI: | https://hdl.handle.net/10316/10731 | ISSN: | 1474-905X | DOI: | 10.1039/b507597a | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Química - Artigos em Revistas Internacionais |
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A comparative study of water soluble 5,10,15,20-tetrakis(2,6-.pdf | 210.67 kB | Adobe PDF | Ver/Abrir |
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