Superhydrophilicity and photocatalytic property of nanocrystalline titania sol-gel films

Kontos, AI; Kontos, AG; Tsoukleris, DS; Vlachos, GD; Falaras, P

dc.contributor.author	Kontos, AI	en
dc.contributor.author	Kontos, AG	en
dc.contributor.author	Tsoukleris, DS	en
dc.contributor.author	Vlachos, GD	en
dc.contributor.author	Falaras, P	en
dc.date.accessioned	2014-03-01T01:27:20Z
dc.date.available	2014-03-01T01:27:20Z
dc.date.issued	2007	en
dc.identifier.issn	0040-6090	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18408
dc.subject	Nanocrystalline titania	en
dc.subject	Photocatalysis	en
dc.subject	Raman scattering	en
dc.subject	Superhydrophilicity	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.classification	Materials Science, Coatings & Films	en
dc.subject.classification	Physics, Applied	en
dc.subject.classification	Physics, Condensed Matter	en
dc.subject.other	Annealing	en
dc.subject.other	Atomic force microscopy	en
dc.subject.other	Deposition	en
dc.subject.other	Hydrophilicity	en
dc.subject.other	Hydrosilylation	en
dc.subject.other	Nanocrystallites	en
dc.subject.other	Photocatalysis	en
dc.subject.other	Sol-gel process	en
dc.subject.other	Titanium compounds	en
dc.subject.other	X ray diffraction	en
dc.subject.other	Deposition parameters	en
dc.subject.other	Dip-coating deposition	en
dc.subject.other	Glass substrates	en
dc.subject.other	Superhydrophilicity	en
dc.subject.other	Thin films	en
dc.title	Superhydrophilicity and photocatalytic property of nanocrystalline titania sol-gel films	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.tsf.2007.02.082	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.tsf.2007.02.082	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	Nanocrystalline titania thin films were prepared by deposition and annealing of titania sol-gel precursor materials, both non-hydrated solutions and hydrosols. The sol-gels were immobilized on glass substrates applying doctor blade and dip-coating deposition techniques. The nanoparticle size, determined by the full-width at half-maximum of the X-ray diffraction peaks as well as by shifting and broadening of the Raman modes, strongly depends on the precursor solution. Significant differences were also confirmed on the surface characteristics, roughness and complexity of the films by atomic force microscopy. The films present high activity towards photodecomposition of methyl orange azo-dye together with enhanced photo-induced superhydrophilicity under illumination with ultraviolet light. Judicious choice of the precursor material and efficient control of the deposition parameters may lead to the optimization of their photocatalytic and/or superhydrophilic properties. (c) 2007 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE SA	en
heal.journalName	Thin Solid Films	en
dc.identifier.doi	10.1016/j.tsf.2007.02.082	en
dc.identifier.isi	ISI:000247897900055	en
dc.identifier.volume	515	en
dc.identifier.issue	18	en
dc.identifier.spage	7370	en
dc.identifier.epage	7375	en