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dc.contributor.authorMeng, F.
dc.contributor.authorLiu, Y.
dc.contributor.authorWang, J.
dc.contributor.authorTan, X.
dc.contributor.authorSun, Hongqi
dc.contributor.authorLiu, Shaomin
dc.contributor.authorWang, Shaobin
dc.date.accessioned2018-12-13T09:14:46Z
dc.date.available2018-12-13T09:14:46Z
dc.date.created2018-12-12T02:46:46Z
dc.date.issued2018
dc.identifier.citationMeng, F. and Liu, Y. and Wang, J. and Tan, X. and Sun, H. and Liu, S. and Wang, S. 2018. Temperature dependent photocatalysis of g-C3N4, TiO2 and ZnO: Differences in photoactive mechanism. Journal of Colloid and Interface Science. 532: pp. 321-330.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/72891
dc.identifier.doi10.1016/j.jcis.2018.07.131
dc.description.abstract

Photocatalysis has been believed as one of the green and sustainable avenues to address energy and environmental crises by converting solar energy to chemical energy via reactions. Temperature is usually a vital factor controlling kinetics and thermodynamics of a reaction, but it has been less investigated in photocatalysis. In this work, the effect of reaction temperature on photocatalysis was investigated in a simple process, photocatalytic degradation of Congo Red (CR) on three typical catalysts, g-C3N4, TiO2 and ZnO, to differentiate the interfacial radical generation and reaction mechanism. The results showed that the temperature has a positive effect on the photocatalytic activity of the three catalysts. The scavenger experiments at various temperatures indicated that the generation of reactive species from the three photocatalysts is different and that the free radicals can be produced more quickly at higher temperatures, causing improved activities in photocatalysis. However, photocurrent analysis and EIS at various temperatures showed that the temperature had a different effect on recombination rate and transfer barriers of the charge carriers from each catalyst. Therefore, the dramatic enhancement in photodegradation activities probably originated from a novel mechanism of the photothermocatalytic oxidation. The interfacial reaction and mechanism from the influence of reaction temperature on the photocatalytic process was proposed.

dc.publisherAcademic Press
dc.titleTemperature dependent photocatalysis of g-C3N4, TiO2 and ZnO: Differences in photoactive mechanism
dc.typeJournal Article
dcterms.source.volume532
dcterms.source.startPage321
dcterms.source.endPage330
dcterms.source.issn0021-9797
dcterms.source.titleJournal of Colloid and Interface Science
curtin.departmentWASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
curtin.accessStatusFulltext not available


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