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Titolo: The effect of nanometre-sized Au particle loading on TiO2 photocatalysed reduction of bis(2-dipyridyl)disulfide to 2-mercaptopyridine by H2O
Autore: Tada, H; Suzuki, F; Yoneda, S; Ito, S; Kobayashi, H;
- Indirizzi:
- Kinki Univ, Mol Engn Inst, Osaka 5778502, Japan Kinki Univ Osaka Japan 5778502 Univ, Mol Engn Inst, Osaka 5778502, Japan Kinki Univ, Fac Sci & Technol, Dept Appl Chem, Osaka 5778502, Japan Kinki Univ Osaka Japan 5778502 nol, Dept Appl Chem, Osaka 5778502, Japan Kurashiki Univ Sci & Arts, Dept Chem Technol, Kurashiki, Okayama 712, Japan Kurashiki Univ Sci & Arts Kurashiki Okayama Japan 712 Okayama 712, Japan
- Titolo Testata:
- PHYSICAL CHEMISTRY CHEMICAL PHYSICS
fascicolo: 7,
volume: 3,
anno: 2001,
pagine: 1376 - 1382
- SICI:
- 1463-9076(2001)3:7<1376:TEONAP>2.0.ZU;2-W
- Fonte:
- ISI
- Lingua:
- ENG
- Soggetto:
- SELF-ASSEMBLED MONOLAYERS; ELECTRON; CLEAVAGE; AG; WATER; GOLD;
- Tipo documento:
- Article
- Natura:
- Periodico
- Settore Disciplinare:
- Physical, Chemical & Earth Sciences
- Citazioni:
- 30
- Recensione:
- Indirizzi per estratti:
- Indirizzo: Tada, H Kinki Univ, Mol Engn Inst, 3-4-1 Kowakae, Osaka 5778502, Japan Kinki Univ 3-4-1 Kowakae Osaka Japan 5778502 Osaka 5778502, Japan
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- Citazione:
- H. Tada et al., "The effect of nanometre-sized Au particle loading on TiO2 photocatalysed reduction of bis(2-dipyridyl)disulfide to 2-mercaptopyridine by H2O", PHYS CHEM P, 3(7), 2001, pp. 1376-1382
Abstract
TiO2 photocatalysed reduction of bis(2-dipyridyl)disulfide (RSSR) to 2-mercaptopyridine by H2O is enhanced significantly by incorporation of nanometre-sized Au particles. The rate is strongly dependent on the amount of Au loaded (x wt.%), passing through a maximum at x similar to0.3, while it is almost independent of the Au particle size in the 4.3-11 nm range. Comparisonof the effects of Au and Ag loading reveals that the rate constant of the Au(0.25 wt.%)/TiO2 system is greater than that of the Ag(0.24 wt.%)/TiO2 system by a factor of 2.6 and the activation energy of the former is about two-thirds that of the latter. The enhancing effect of the Au loading is discussed in terms of kinetic and molecular orbital considerations.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/06/13 alle ore 07:05:14