About: Removal of Organic Dye Direct Red 79 from Water Solutions by DC Diaphragm Discharge: Analysis of Decomposition Products

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Water solutions of organic dye Direct Red 79 were treated by DC high voltage created by diaphragm discharge (input power up to 160 W). Higher dye decoloration (60% after 40 min) was observed in the anode part of the reactor by UV-VIS spectroscopy. Recorded absorption spectra showed shifts of absorption maximum to lower wavelength values that were related to the formation of stable degradation products. Absorption spectra obtained in the cathode part of the diaphragm reactor produced only negligible shifts of absorption maximum and the dye decomposition rate reached 25% after 80 min of the treatment. HPLC-MS method revealed five main compounds in the anode part and another three ones in the cathode part. Analysis of identified products showed on the initial decomposition of one azo-group in the original dye molecule. Significant changes of solution properties during the diaphragm discharge were observed, too. Solution conductivity increased in both parts of the reactor. Solution pH dropped from the ini Water solutions of organic dye Direct Red 79 were treated by DC high voltage created by diaphragm discharge (input power up to 160 W). Higher dye decoloration (60% after 40 min) was observed in the anode part of the reactor by UV-VIS spectroscopy. Recorded absorption spectra showed shifts of absorption maximum to lower wavelength values that were related to the formation of stable degradation products. Absorption spectra obtained in the cathode part of the diaphragm reactor produced only negligible shifts of absorption maximum and the dye decomposition rate reached 25% after 80 min of the treatment. HPLC-MS method revealed five main compounds in the anode part and another three ones in the cathode part. Analysis of identified products showed on the initial decomposition of one azo-group in the original dye molecule. Significant changes of solution properties during the diaphragm discharge were observed, too. Solution conductivity increased in both parts of the reactor. Solution pH dropped from the ini (en)
Title	Removal of Organic Dye Direct Red 79 from Water Solutions by DC Diaphragm Discharge: Analysis of Decomposition Products Removal of Organic Dye Direct Red 79 from Water Solutions by DC Diaphragm Discharge: Analysis of Decomposition Products (en)
skos:prefLabel	Removal of Organic Dye Direct Red 79 from Water Solutions by DC Diaphragm Discharge: Analysis of Decomposition Products Removal of Organic Dye Direct Red 79 from Water Solutions by DC Diaphragm Discharge: Analysis of Decomposition Products (en)
skos:notation	RIV/00216305:26310/10:PU88206!RIV11-GA0-26310___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GD104/09/H080), P(GP202/07/P371)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Halamová, Ivana Nejezchleb, Martin Kozáková, Zdenka Krčma, František Čáslavský, Josef
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	Vysoké učení technické v Brně / Fakulta chemická
http://linked.open...dnocenehoVysledku	284766
http://linked.open...ai/riv/idVysledku	RIV/00216305:26310/10:PU88206
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Direct Red 79, DC diaphragm discharge, product analysis. (en)
http://linked.open.../riv/klicoveSlovo	DC diaphragm discharge Direct Red 79 product analysis.
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[A5FF33F5900D]
http://linked.open...i/riv/nazevZdroje	DESALINATION
http://linked.open...in/vavai/riv/obor	BL
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Plasmachemical processes and their technological applications Study of processes in electrical discharges in water solutions of organic compounds
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	258
http://linked.open...iv/tvurceVysledku	Krčma, František Čáslavský, Josef Kozáková, Zdenka Nejezchleb, Martin Totová, Ivana Dolinová, Jindřiška
issn	0011-9164
number of pages	7 (xsd:int)
http://localhost/t...ganizacniJednotka	26310
is http://linked.open...avai/riv/vysledek of	Removal of Organic Dye Direct Red 79 from Water Solutions by DC Diaphragm Discharge: Analysis of Decomposition Products Removal of Organic Dye Direct Red 79 from Water Solutions by DC Diaphragm Discharge: Analysis of Decomposition Products Removal of Organic Dye Direct Red 79 from Water Solutions by DC Diaphragm Discharge: Analysis of Decomposition Products

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