UV-Catalyzed Persulfate Oxidation of an Anthraquinone Based Dye

Simple item page
dc.contributor.authorKrawczyk,Kamil
dc.contributor.authorWacławek, Stanisław
dc.contributor.authorKudlek, Edyta
dc.contributor.authorSilvestri, Daniele
dc.contributor.authorKukulski, Tomasz
dc.contributor.authorGrübel, Klaudiusz
dc.contributor.authorPadil, Vinod V. T.
dc.contributor.authorČerník, Miroslav
dc.date.accessioned2020-04-23T09:52:13Z
dc.date.available2020-04-23T09:52:13Z
dc.date.issued2020
dc.description.abstractWastewater from the textile industry has a substantial impact on water quality. Synthetic dyes used in the textile production process are often discharged into water bodies as residues. Highly colored wastewater causes various of problems for the aquatic environment such as: reducing light penetration, inhibiting photosynthesis and being toxic to certain organisms. Since most dyes are resistant to biodegradation and are not completely removed by conventional methods (adsorption, coagulation-flocculation, activated sludge, membrane filtration) they persist in the environment. Advanced oxidation processes (AOPs) based on hydrogen peroxide (H2O2) have been proven to decolorize only some of the dyes from wastewater by photocatalysis. In this article, we compared two very different photocatalytic systems (UV/peroxydisulfate and UV/H2O2). Photocatalyzed activation of peroxydisulfate (PDS) generated sulfate radicals (SO4•−), which reacted with the selected anthraquinone dye of concern, Acid Blue 129 (AB129). Various conditions, such as pH and concentration of PDS were applied, in order to obtain an effective decolorization effect, which was significantly better than in the case of hydroxyl radicals. The kinetics of the reaction followed a pseudo-first order model. The main reaction pathway was also proposed based on quantum chemical analysis. Moreover, the toxicity of the solution after treatment was evaluated using Daphnia magna and Lemna minor, and was found to be significantly lower compared to the toxicity of the initial dye.cs
dc.format.extent15 strancs
dc.identifier.WebofScienceResearcherIDK-2323-2016 Wacławek, Stanisław
dc.identifier.WebofScienceResearcherIDE-1079-2016 Padil, Vinod V. T.
dc.identifier.WebofScienceResearcherIDB-4390-2013 Černík, Miroslav
dc.identifier.doi10.3390/catal10040456
dc.identifier.orcid0000-0002-8430-8269 Wacławek, Stanisław
dc.identifier.orcid0000-0002-0816-526X Padil, Vinod V. T.
dc.identifier.orcid0000-0002-7554-020X Černík, Miroslav
dc.identifier.urihttps://dspace.tul.cz/handle/15240/154760
dc.identifier.urihttps://www.mdpi.com/2073-4344/10/4/456
dc.language.isocscs
dc.publisherMDPI
dc.publisherCatalysts 2020
dc.subjectphotocatalysiscs
dc.subjectdyecs
dc.subjectUVcs
dc.subjectperoxydisulfatecs
dc.subjectadvanced oxidation processcs
dc.titleUV-Catalyzed Persulfate Oxidation of an Anthraquinone Based Dyecs
local.identifier.publikace7629
local.relation.issue4
local.relation.volume10
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
catalysts-10-00456.pdf
Size:
2.14 MB
Format:
Adobe Portable Document Format
Description:
článek
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections