Use of Ca-alginate as a novel support for TiO2 immobilization in methylene blue decolorisation

dc.creatorAlbarelli, JQ
dc.creatorSantos, DT
dc.creatorMurphy, S
dc.creatorOelgemoller, M
dc.date2009
dc.date2014-11-19T16:55:02Z
dc.date2015-11-26T17:07:23Z
dc.date2014-11-19T16:55:02Z
dc.date2015-11-26T17:07:23Z
dc.date.accessioned2018-03-28T23:55:55Z
dc.date.available2018-03-28T23:55:55Z
dc.identifierWater Science And Technology. Iwa Publishing, v. 60, n. 4, n. 1081, n. 1087, 2009.
dc.identifier0273-1223
dc.identifierWOS:000269550700028
dc.identifier10.2166/wst.2009.459
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/73259
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/73259
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/73259
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1280111
dc.descriptionThis study provides a preliminary contribution to the development of an industrial process for the UV/TiO2 water treatment by introducing a novel support for TiO2 immobilization. For the following study, Methylene Blue (MB) was chosen as the model dye to evaluate this novel immobilization system. The results showed that TiO2 immobilized in a Ca-alginate bead retained its photoactivity during all of the experiments and the TiO2-gel beads presented good stability in water for maintaining its shape after several uses. When a proportion of 10% (v/v) of these beads was used, the configuration system demonstrated an improved mass transfer and consequently enhanced degradation efficiency. Experiments were also performed using 'recycled' beads. The results showed an increase in the degradation efficiency when the beads were reused, with an eventual 'self-destructive' effect. These studies showed great promise regarding the recyclable reagents with a reduction in waste at no greater cost or reduction in efficiency. Therefore, the potential of TiO2-gel beads as a simple and environmentally friendly catalyst for continuous use was developed.
dc.description60
dc.description4
dc.description1081
dc.description1087
dc.descriptionDublin City University (DCU), Ireland
dc.languageen
dc.publisherIwa Publishing
dc.publisherLondon
dc.publisherInglaterra
dc.relationWater Science And Technology
dc.relationWater Sci. Technol.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectCa-alginate
dc.subjectindustrial water treatment
dc.subjectmethylene blue
dc.subjectphotocatalyst immobilization
dc.subjectPhotocatalytic Degradation
dc.subjectWaste-water
dc.subjectBeads
dc.subjectDisinfection
dc.subjectRemoval
dc.subjectXylitol
dc.subjectFilms
dc.subjectDyes
dc.titleUse of Ca-alginate as a novel support for TiO2 immobilization in methylene blue decolorisation
dc.typeArtículos de revistas


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