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Heterogeneous Photocatalytic Degradation of Nitrophenols Review

Journal Journal of Photochemistry and Photobiology A: Chemistry
ISSN: 1010-6030 , E-ISSN: 1873-2666
Output data Year: 2003, Volume: 155, Number: 1-3, Pages: 207-214 Pages count : 8 DOI: 10.1016/S1010-6030(02)00390-8
Tags Nitrophenols, Photocatalytic degradation, Titanium dioxide
Authors Di Paola A. 1 , Augugliaro V. 1 , Palmisano L. 1 , Pantaleo G. 2 , Savinov E.N. 3
Affiliations
1 Dipartimento di Ingegneria Chimica dei Processi e dei Materiali, Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy
2 ISMN-CNR, Via Ugo La Malfa 153, 90146 Palermo, Italy
3 Boreskov Institute of Catalysis, Lavrentieva 5, 630090 Novosibirsk, Russia

Funding (2)

1 Ministry of Education, Universities and Research
2 Ministry of Foreign Affairs and International Cooperation

Abstract: The photocatalytic degradation of 2-, 3- and 4-nitrophenol has been investigated in oxygenated aqueous suspensions containing TiO2. The organic reaction intermediates have been determined by high performance liquid chromatography. The results indicate the complete mineralisation of the substrates and the formation of both nitrate and ammonium ions. The degradation pathways involve a rapid opening of the aromatic ring followed by a slower oxidation of the aliphatic compounds. The hydroxyl radicals are responsible for the primary attack of the nitrophenols with formation of dihydroxynitrobenzenes. The ring hydroxylation occurs in the positions activated by the contemporaneous presence of phenolic and nitro groups. The presence of ammonium ions confirms that reduction pathways are also operating.
Cite: Di Paola A. , Augugliaro V. , Palmisano L. , Pantaleo G. , Savinov E.N.
Heterogeneous Photocatalytic Degradation of Nitrophenols
Journal of Photochemistry and Photobiology A: Chemistry. 2003. V.155. N1-3. P.207-214. DOI: 10.1016/S1010-6030(02)00390-8 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
Submitted: Jul 17, 2002
Accepted: Oct 15, 2002
Published online: Dec 31, 2002
Published print: Feb 20, 2003
Identifiers:
Web of science: WOS:000181246300025
Scopus: 2-s2.0-0037456088
Elibrary: 13430177
Chemical Abstracts: 2003:100021
Chemical Abstracts (print): 138:376238
OpenAlex: W2055698169
Citing:
DB Citing
Web of science 217
Scopus 230
Elibrary 213
OpenAlex 230
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