About: Sulphonated Phthalocyanines as Effective Oxidation Photocatalysts

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Pozornost je zaměřena na syntézu, chemickou modifikaci, charakterizaci a využití v katalýze série ftalocyaninů s různým centrálním atomem. (cs) Attention was paid to the synthesis, chemical modification, characterisation and practical catalytic utilisation of metal free phthalocyanine and a series of phthalocyanines (PHCs) with Zn, Al, Si, Co, Ni, Cu and Ti central atoms. Photocatalytic efficiency of the prepared PHCs was tested in a model oxidation of 4-chlorophenol under illumination with visible and UV light in agreement with location of their distinctive absorption bands in both these regions. It was shown that different types of phthalocyanines revealed very different photocatalytic activities and only those with a long life-time of the excited triplet states (ZnPHC, SiPHC, AlPHC) effectively interacted with molecular oxygen to form the reactive singlet oxygen. The indispensable role of constant pH was also clarified in separate experiments. Determined values of quantum yields for reactions carried out in the UV region were always higher than for reactions induced by the visible light. . Attention was paid to the synthesis, chemical modification, characterisation and practical catalytic utilisation of metal free phthalocyanine and a series of phthalocyanines (PHCs) with Zn, Al, Si, Co, Ni, Cu and Ti central atoms. Photocatalytic efficiency of the prepared PHCs was tested in a model oxidation of 4-chlorophenol under illumination with visible and UV light in agreement with location of their distinctive absorption bands in both these regions. It was shown that different types of phthalocyanines revealed very different photocatalytic activities and only those with a long life-time of the excited triplet states (ZnPHC, SiPHC, AlPHC) effectively interacted with molecular oxygen to form the reactive singlet oxygen. The indispensable role of constant pH was also clarified in separate experiments. Determined values of quantum yields for reactions carried out in the UV region were always higher than for reactions induced by the visible light. . (en)
Title	Sulphonated Phthalocyanines as Effective Oxidation Photocatalysts Sulfonované ftalocyaniny jako účinné oxidační fotokytalyzátory pro UV-VIS oblast záření (cs) Sulphonated Phthalocyanines as Effective Oxidation Photocatalysts (en)
skos:prefLabel	Sulphonated Phthalocyanines as Effective Oxidation Photocatalysts Sulfonované ftalocyaniny jako účinné oxidační fotokytalyzátory pro UV-VIS oblast záření (cs) Sulphonated Phthalocyanines as Effective Oxidation Photocatalysts (en)
skos:notation	RIV/67985858:_____/08:00306331!RIV08-AV0-67985858
http://linked.open.../vavai/riv/strany	213;219
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GD203/03/H140), P(KAN400720701), Z(AV0Z40720504)
http://linked.open...iv/cisloPeriodika	1-2
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Strašák, Tomáš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav chemických procesů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	398334
http://linked.open...ai/riv/idVysledku	RIV/67985858:_____/08:00306331
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	phthalocyanines; 4-Chlorophenol; photocatalysis (en)
http://linked.open.../riv/klicoveSlovo	photocatalysis 4-Chlorophenol phthalocyanines
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[FDF0BF833409]
http://linked.open...i/riv/nazevZdroje	Journal of Molecular Catalysis A-Chemical
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Hierarchic nanosystems for microelektronics Organised materials for highly selective catalytic and separation processes
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	272
http://linked.open...iv/tvurceVysledku	Krýsa, J. Karásková, M. Strašák, Tomáš Klusoň, P. Drobek, M. Rakušak, J.
http://linked.open...n/vavai/riv/zamer	Investigation of multiphase reacting systems for the design of processes important in synthesis and preparation of novel materials, in energy production and in environmental protection
issn	1381-1169
number of pages	7 (xsd:int)

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