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dc.contributor.authorHui, Jianing
dc.contributor.authorPestana, Carlos J.
dc.contributor.authorCaux, Marine
dc.contributor.authorGunaratne, H. Q. Nimal
dc.contributor.authorEdwards, Christine
dc.contributor.authorRobertson, Peter K.J.
dc.contributor.authorLawton, Linda A.
dc.contributor.authorIrvine, John T.S.
dc.date.accessioned2021-09-27T23:40:33Z
dc.date.available2021-09-27T23:40:33Z
dc.date.issued2021-01-15
dc.identifier.citationHui , J , Pestana , C J , Caux , M , Gunaratne , H Q N , Edwards , C , Robertson , P K J , Lawton , L A & Irvine , J T S 2021 , ' Graphitic-C 3 N 4 coated floating glass beads for photocatalytic destruction of synthetic and natural organic compounds in water under UV light ' , Journal of Photochemistry and Photobiology A: Chemistry , vol. 405 , 112935 . https://doi.org/10.1016/j.jphotochem.2020.112935en
dc.identifier.issn1010-6030
dc.identifier.otherPURE: 270438605
dc.identifier.otherPURE UUID: 63f1bbbb-75a9-4fb2-909b-4cacd12bf0a6
dc.identifier.otherRIS: urn:0F24118AAFDD1939640AFD25029788A0
dc.identifier.otherORCID: /0000-0002-8394-3359/work/81405685
dc.identifier.otherScopus: 85091762581
dc.identifier.otherWOS: 000595367900010
dc.identifier.urihttp://hdl.handle.net/10023/24033
dc.descriptionFunding: the Engineering and Physical Sciences Research Council, UK (Global Challenge Research Fund: EP/P029280/1) towards carrying out this research. We also thank the support on electron microscopes from EPSRC Capital for Great Technologies (Grant EP/LP017008/1 and EP/R02375/1).en
dc.description.abstractMany drinking water reservoirs can contain organic pollutants such as artificial synthesized dye and drugs. On the other hand, some naturally occurring microorganisms such as cyanobacteria, are capable of producing toxic secondary metabolites (cyanotoxins) causing detrimental health effects in humans and animals are also present in water reservoirs. Photocatalytic destruction of organic pollutants in-reservoir requires not only good photo-catalytically activity but also efficacy of distribution and recycling. We report here, a facile calcination method of coating graphitic carbon nitride (g-C3N4) onto porous glass beads. Influences of precursor and heating temperature on photocatalytic activity were evaluated by photocatalytic degradation of methyl orange. The yellow floating beads show comparable activity to P25 (TiO2) coated beads in the removal of two of the most frequently occurring cyanobacterial toxins, microcystin-LR and cylindrospermopsin, in artificial freshwater under UV light irradiation. Microcystin-LR was destroyed within 60 min and cylindrospermopsin was removed after 100 min UV irradiation. The coated g-C3N4 layer is very robust and shows negligible degradation on photocatalytic performance when recycled. The recycling of the photocatalyst is very simple because of the large size of the catalyst-coated beads. A large batch was successfully produced in a lab tube furnace. For further application, the ability of g-C3N4 absorbing visible light could pave the way to utilise sunlight for the destruction of toxins in the water.
dc.language.isoeng
dc.relation.ispartofJournal of Photochemistry and Photobiology A: Chemistryen
dc.rightsCopyright © 2020 Elsevier B.V. All rights reserved. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1016/j.jphotochem.2020.112935en
dc.subjectg-C3N4en
dc.subjectMicrocystin-LRen
dc.subjectCylindrospermopsinen
dc.subjectDye degradationen
dc.subjectFloating photocatalystsen
dc.subjectQD Chemistryen
dc.subjectNDASen
dc.subject.lccQDen
dc.titleGraphitic-C3N4 coated floating glass beads for photocatalytic destruction of synthetic and natural organic compounds in water under UV lighten
dc.typeJournal articleen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews.School of Chemistryen
dc.contributor.institutionUniversity of St Andrews.Centre for Designer Quantum Materialsen
dc.contributor.institutionUniversity of St Andrews.EaSTCHEMen
dc.identifier.doihttps://doi.org/10.1016/j.jphotochem.2020.112935
dc.description.statusPeer revieweden
dc.date.embargoedUntil2021-09-28


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