Preparation Of Copper Nanoparticles In Chitosan Membranes And Their Application As Irreversible Humidity Indicators

dc.creatorDe Godoi F.C.
dc.creatorRabelo R.B.
dc.creatorDa Cruz Vasconcellos F.
dc.creatorBeppu M.M.
dc.date2011
dc.date2015-06-30T20:23:23Z
dc.date2015-11-26T14:48:50Z
dc.date2015-06-30T20:23:23Z
dc.date2015-11-26T14:48:50Z
dc.date.accessioned2018-03-28T21:59:41Z
dc.date.available2018-03-28T21:59:41Z
dc.identifier
dc.identifierChemical Engineering Transactions. Italian Association Of Chemical Engineering - Aidic, v. 24, n. , p. 217 - 222, 2011.
dc.identifier19749791
dc.identifier10.3303/CET1124037
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-79955488836&partnerID=40&md5=0e79d4d7d72b7dcc527f4fa9a5d14877
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/107759
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/107759
dc.identifier2-s2.0-79955488836
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1253718
dc.descriptionCopper nanoparticles were prepared in chitosan (CHI) membranes via reduction of CuSO4.5H2O with sodium borohydride (BH). The fabrication process was performed in two steps: (1) first adsorbing Cu(II) ions in the CHI membranes, followed by (2) a chemical reduction of the Cu(II) ions to zero-valent copper (using BH). This study used SEM, DSC, and XRD to examine the morphological, thermal and chemical properties of the CHI-copper membranes. The synthesized CHI-copper membranes were exposed to ambient humidity and characterized by digital-image analysis with RGB color standards. The results showed that the CHI-copper membranes produced were successfully able to detect ambient moisture shown by the color changes of the membranes (from dark brown to blue). These CHI-copper membranes hold great promise in the engineering field for the production of humidity indicators and sensors. © 2011, AIDIC Servizi S.r.l.
dc.description24
dc.description
dc.description217
dc.description222
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dc.languageen
dc.publisherItalian Association of Chemical Engineering - AIDIC
dc.relationChemical Engineering Transactions
dc.rightsfechado
dc.sourceScopus
dc.titlePreparation Of Copper Nanoparticles In Chitosan Membranes And Their Application As Irreversible Humidity Indicators
dc.typeActas de congresos


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