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CdS-sensitized TiO<sub>2</sub> in phenazopyridine photo-degradation: Catalyst efficiency, stability and feasibility assessment

hal.structure.identifierDepartment of Chemistry
dc.contributor.authorZYOUD, Ahed H.
hal.structure.identifierDepartment of Chemistry
dc.contributor.authorZAATAR, Nidal
hal.structure.identifierDepartment of Chemistry
dc.contributor.authorSAADEDDIN, Iyad
hal.structure.identifierDepartment of Chemistry
dc.contributor.authorALI, Cheknane
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPARK, Dae-Hoon
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCAMPET, Guy
hal.structure.identifierDepartment of Chemistry
dc.contributor.authorHILAL, Hikmat S.
dc.date.issued2010
dc.identifier.issn0304-3894
dc.description.abstractEnMineralization of phenazopyridine, <strong>1</strong>, in water, under solar-simulator radiation was efficiently achieved using nanoparticle CdS-sensitized rutile TiO<sub>2</sub>, TiO<sub>2</sub>/CdS, <strong>2</strong>, as photo-catalysts. Despite that, <strong>2</strong> showed two main drawbacks. Firstly, the system was difficult to recover by simple filtration, and demanded centrifugation. Secondly, the sensitizer CdS showed relatively high tendency to leach out hazardous Cd<sup>2+</sup> ions under photo-degradation reaction conditions. In an attempt to solve out such difficulties, <strong>2</strong> was supported onto sand surface. The sand/TiO<sub>2</sub>/CdS system, <strong>3</strong>, was easier to recover but showed slightly lower catalytic activity compared to <strong>2</strong>. On the other hand, the support failed to prevent leaching of Cd<sup>2+</sup>. This indicates limited future applicability of CdS-sensitized TiO<sub>2</sub> photo-catalyst systems, in solar-based water purification strategies, unless leaching out tendency is completely prevented.
dc.language.isoen
dc.publisherElsevier
dc.title.enCdS-sensitized TiO<sub>2</sub> in phenazopyridine photo-degradation: Catalyst efficiency, stability and feasibility assessment
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jhazmat.2009.08.093
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Hazardous Materials
bordeaux.page318-325
bordeaux.volume173
bordeaux.issue1-3
bordeaux.peerReviewedoui
hal.identifierhal-00462352
hal.version1
hal.popularnon
hal.audienceInternationale
dc.subject.itSand
dc.subject.itTiO2
dc.subject.itCdS
dc.subject.itSensitization
dc.subject.itPhenazopyridine
dc.subject.itPhoto-degradation
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00462352v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Journal%20of%20Hazardous%20Materials&amp;rft.date=2010&amp;rft.volume=173&amp;rft.issue=1-3&amp;rft.spage=318-325&amp;rft.epage=318-325&amp;rft.eissn=0304-3894&amp;rft.issn=0304-3894&amp;rft.au=ZYOUD,%20Ahed%20H.&amp;ZAATAR,%20Nidal&amp;SAADEDDIN,%20Iyad&amp;ALI,%20Cheknane&amp;PARK,%20Dae-Hoon&amp;rft.genre=article


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