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Very efficient composite titania membranes in hybrid ultrafiltration/photocatalysis water treatment processes

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dc.contributor.author Athanasekou, CP en
dc.contributor.author Romanos, GE en
dc.contributor.author Katsaros, FK en
dc.contributor.author Kordatos, K en
dc.contributor.author Likodimos, V en
dc.contributor.author Falaras, P en
dc.date.accessioned 2014-03-01T02:14:53Z
dc.date.available 2014-03-01T02:14:53Z
dc.date.issued 2012 en
dc.identifier.issn 03767388 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/30167
dc.subject Cross-filtration en
dc.subject Photocatalysis en
dc.subject UF membranes en
dc.subject Ultra thin TiO2 layers en
dc.subject.other Adsorption site en
dc.subject.other Chemical vapours en
dc.subject.other Continuous flow reactors en
dc.subject.other Cross-filtration en
dc.subject.other High water en
dc.subject.other Layer by layer deposition en
dc.subject.other Membrane efficiencies en
dc.subject.other Methyl Orange en
dc.subject.other Nanoparticle growths en
dc.subject.other Oxidative treatment en
dc.subject.other Photo-catalytic en
dc.subject.other Reaction steps en
dc.subject.other TiO en
dc.subject.other Titania membranes en
dc.subject.other Titanium isopropoxide en
dc.subject.other UF membranes en
dc.subject.other Ultra-thin en
dc.subject.other Ultrafiltration membranes en
dc.subject.other UV irradiation en
dc.subject.other Water treatment process en
dc.subject.other Azo dyes en
dc.subject.other Chemisorption en
dc.subject.other Composite membranes en
dc.subject.other Deposition en
dc.subject.other Membranes en
dc.subject.other Microfiltration en
dc.subject.other Nanocomposite films en
dc.subject.other Photocatalysis en
dc.subject.other Photodegradation en
dc.subject.other Physisorption en
dc.subject.other Titanium en
dc.subject.other Titanium dioxide en
dc.subject.other Ultrafiltration en
dc.subject.other Water filtration en
dc.subject.other Water treatment en
dc.subject.other azo dye en
dc.subject.other methyl orange en
dc.subject.other nanocomposite en
dc.subject.other nanoparticle en
dc.subject.other titanium dioxide en
dc.subject.other adsorption kinetics en
dc.subject.other article en
dc.subject.other biofouling en
dc.subject.other catalyst en
dc.subject.other continuous flow reactor en
dc.subject.other decomposition en
dc.subject.other photocatalysis en
dc.subject.other photodegradation en
dc.subject.other plug flow reactor en
dc.subject.other pollutant en
dc.subject.other priority journal en
dc.subject.other ultrafiltration en
dc.subject.other ultraviolet radiation en
dc.subject.other waste water management en
dc.subject.other water permeability en
dc.subject.other water supply en
dc.title Very efficient composite titania membranes in hybrid ultrafiltration/photocatalysis water treatment processes en
heal.type journalArticle en
heal.identifier.primary 10.1016/j.memsci.2011.12.028 en
heal.identifier.secondary http://dx.doi.org/10.1016/j.memsci.2011.12.028 en
heal.publicationDate 2012 en
heal.abstract Composite TiO2 photocatalytic ultrafiltration (UF) membranes were developed through chemical vapour layer-by-layer deposition (LBL/CVD) of TiO2. The technique comprised chemisorption or physisorption of the titanium isopropoxide (TTIP) vapour and a subsequent oxidative treatment in order to promote the precursor condensation and generate new adsorption sites for the accomplishment of the successive adsorption/surface reaction steps. Both membrane sides were covered with TiO2 photocatalyst without affecting the high water recovery efficiency. For reasons of comparison, one of the membranes was prepared through TiO2 nanoparticle growth (NPG/CVD), a procedure extensively studied in a previous work of our group. The membrane efficiency in photo degradation of methyl orange was evaluated in an innovative continuous flow reactor, applying UV irradiation on the annular and bore surfaces. The membranes developed through the physisorption path were highly efficient in the decomposition of azo-dye pollutant, exhibiting low adsorption-fouling tendency and high water permeability. © 2011 Elsevier B.V. en
heal.journalName Journal of Membrane Science en
dc.identifier.doi 10.1016/j.memsci.2011.12.028 en
dc.identifier.volume 392-393 en
dc.identifier.spage 192 en
dc.identifier.epage 203 en


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