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Titolo:
Photocatalytic degradation of commercial azo dyes
Autore:
Tanaka, K; Padermpole, K; Hisanaga, T;
Indirizzi:
Natl Inst Mat & Chem Res, Tsukuba, Ibaraki 3058565, Japan Natl Inst Mat & Chem Res Tsukuba Ibaraki Japan 3058565 aki 3058565, Japan Dept Ind Promot, Text Ind Div, Bangkok 10110, Thailand Dept Ind Promot Bangkok Thailand 10110 Ind Div, Bangkok 10110, Thailand
Titolo Testata:
WATER RESEARCH
fascicolo: 1, volume: 34, anno: 2000,
pagine: 327 - 333
SICI:
0043-1354(200001)34:1<327:PDOCAD>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
WASTE-WATER; TIO2; ACID; DECOLORIZATION; PHOTOCHEMISTRY; SUSPENSIONS; OXIDATION; REDUCTION; SEDIMENT; KINETICS;
Keywords:
azo dye; titanium dioxide; intermediate products; organic acid;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Tanaka, K Natl Inst Mat & Chem Res, 1-1 Higashi, Tsukuba, Ibaraki 3058565,Japan Natl Inst Mat & Chem Res 1-1 Higashi Tsukuba Ibaraki Japan 3058565
Citazione:
K. Tanaka et al., "Photocatalytic degradation of commercial azo dyes", WATER RES, 34(1), 2000, pp. 327-333

Abstract

Seven azo dyes were photocatalytically degraded in TiO2 suspension. Their degradation rates were compared with disappearance and TOC elimination rates. It was demonstrated that diazo dye is less degradable than monoazo and the order of photocatalytic degradation rates was in approximate agreement with that of ozonation rates cited from literature. Major intermediates identified are aromatic amine, phenolic compounds and several organic acids. Itwas indicated from this study that in the photocatalytic degradation of azo dye the disappearance proceeds through both oxidation and reduction, whereas TOC is eliminated predominantly by oxidation. (C) 1999 Elsevier ScienceLtd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/10/20 alle ore 12:20:03