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Halloysite nanotubes: Controlled access and release by smart gates

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dc.contributor.author Cavallaro G.
dc.contributor.author Danilushkina A.
dc.contributor.author Evtugyn V.
dc.contributor.author Lazzara G.
dc.contributor.author Milioto S.
dc.contributor.author Parisi F.
dc.contributor.author Rozhina E.
dc.contributor.author Fakhrullin R.
dc.date.accessioned 2018-04-05T07:10:22Z
dc.date.available 2018-04-05T07:10:22Z
dc.date.issued 2017
dc.identifier.uri http://dspace.kpfu.ru/xmlui/handle/net/130406
dc.description.abstract © 2017 by the authors. Licensee MDPI, Basel, Switzerland. Hollow halloysite nanotubes have been used as nanocontainers for loading and for the triggered release of calcium hydroxide for paper preservation. A strategy for placing end-stoppers into the tubular nanocontainer is proposed and the sustained release from the cavity is reported. The incorporation of Ca(OH) 2 into the nanotube lumen, as demonstrated using transmission electron microscopy (TEM) imaging and Energy Dispersive X-ray (EDX) mapping, retards the carbonatation, delaying the reaction with CO 2 gas. This effect can be further controlled by placing the end-stoppers. The obtained material is tested for paper deacidification. We prove that adding halloysite filled with Ca(OH) 2 to paper can reduce the impact of acid exposure on both the mechanical performance and pH alteration. The end-stoppers have a double effect: they preserve the calcium hydroxide from carbonation, and they prevent from the formation of highly basic pH and trigger the response to acid exposure minimizing the pH drop-down. These features are promising for a composite nanoadditive in the smart protection of cellulose-based materials.
dc.subject Cellulose
dc.subject Controlled release
dc.subject Halloysite
dc.subject Nanocomposite
dc.title Halloysite nanotubes: Controlled access and release by smart gates
dc.type Article
dc.relation.ispartofseries-issue 8
dc.relation.ispartofseries-volume 7
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS-2017-7-8-SID85026644483


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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