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Photocatalytic Degradation of Reactive Dyes in Effluents Employing Copper Doped Titanium Dioxide Nanocrystals and Direct Sunlight

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1TitleTitle of DocumentPhotocatalytic Degradation of Reactive Dyes in Effluents Employing Copper Doped Titanium Dioxide Nanocrystals and Direct Sunlight
2CreatorAuthor's name, affiliation, country P. DHARMARAJAN, A. SABASTIYAN, M. YOSUVA SUVAIKIN, S. TITUS and C. MUTHUKUMAR
Department of Chemistry, Thanthai Hans Roever College, Perambalur - 621 212, India
Department of Chemistry, Urumu Dhanalakshmi College, Tiruchirappalli- 620019, India
Department of Chemistry, J.J.College of Arts and Science, Pudukkottai-622001, India
3SubjectDicipline(s) Chemical Science
3SubjectKeywords Cu-doped TiO2 nanocrystals, Reactive dyes, Photocatalytic degradation, Advanced oxidation process, Hydroxyl radical, Chemical oxygen demand
4DescriptionAbstract Nanosized photocatalyst samples of TiO2 and Cu-doped TiO2 were synthesized employing sol-gel method. The photocatalysts were characterized by powder XRD, SEM, EDAX and diffused reflectance spectral studies. Model effluents of reactive dyes were subjected to degradation employing the Cu-doped TiO2 catalysts with direct sunlight irradiation and liberal aeration. The heterogeneous Advanced Oxidation Process (AOP) involves photolytic generation of very reactive hydroxyl radicals. The photocatalytic degradation activity of the nanocatalysts has been evaluated on the basis of Langmuir-Hinshelwood kinetic model. The effects of pH, concentration of H2O2 added, initial dye concentration and dosage of the catalyst have also been investigated. The degrees of degradation/mineralization of the organic dyes have also been estimated by measuring the CODs of the photocatalytically degraded dye solutions. The results show that the Cu-doped TiO2 nanoparticles are very effective in degrading the dye pollutants.
5PublishersOrganizing agency, location WWW Publications, India
6Contributor Sponsor(s) -
7DateDate (YYYY-MM-DD) -
8TypeStatus & genre Peer-reviewed Article
8TypeType
9FormateFile Formate PDF
10IdentifierUniform Resource Identifier Click Here
10IdentifierDigital Object Identifier DOI:10.7598/cst2013.575
11SourceJournal/conference title; vol., no. (Year)Chemical Science Transactions, Volume  2 , Number  (4), (2013)
12LanuguageEnglish=en en
13RelationSupp.files
14Coverage -
15CopyrightCopyright and permissions
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