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<datestamp>2018-01-16</datestamp>
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<metadata><dc>
<publisher>HAL CCSD</publisher>
<title lang=en>Mesoporous TiO 2 based membranes for water desalination and brine processing</title>
<creator>Yacou, Christelle</creator>
<creator>Smart, Simon</creator>
<creator>Diniz da Costa, João C.</creator>
<contributor>University of Queensland [Brisbane]</contributor>
<contributor>Chimie des Matériaux - Connaissance et Valorisation (COVACHIMM) ; Université des Antilles et de la Guyane (UAG)</contributor>
<contributor>The University of Queensland, FIM2Lab – Functional Interfacial Materials and Membrane Laboratory, School of Chemical Engineering, Brisbane, QLD 4067, Australia (FIM2Lab) ; University of Queensland [Brisbane]</contributor>
<description>International audience</description>
<source>ISSN: 1383-5866</source>
<source>Separation and Purification Technology</source>
<publisher>Elsevier</publisher>
<identifier>hal-01683212</identifier>
<identifier>https://hal.univ-antilles.fr/hal-01683212</identifier>
<source>https://hal.univ-antilles.fr/hal-01683212</source>
<source>Separation and Purification Technology, Elsevier, 2015, 147, pp.166 - 171. 〈10.1016/j.seppur.2015.04.028〉</source>
<identifier>DOI : 10.1016/j.seppur.2015.04.028</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1016/j.seppur.2015.04.028</relation>
<language>en</language>
<subject>[CHIM.MATE] Chemical Sciences/Material chemistry</subject>
<subject>[CHIM.GENI] Chemical Sciences/Chemical engineering</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Abstract This work shows the preparation, characterisation and testing of TiO2 membranes dip-coated on commercial α-Al2O3 tubes for desalination. TiO2 thin films (∼400 nm) were synthesised from titanium propoxide and exposed to a gentle thermal treatment to control particle and pore sizes (dp ∼ 4 nm). The TiO2 membranes were tested for brackish (0.3 wt%), sea water (3.5 wt%) and brine concentrations (7.5 and 10 wt%) up to 75°C in a pervaporation setup. Water fluxes as high as 10.5 kg m-2 h-1 were achieved for brackish concentrations, whilst values of up to 4.0 and 6.0 kg m-2 h-1 were measured for the highest brine concentration (10 wt%). Concentration and temperature polarisation both affected the water fluxes, particularly for brine solutions, though the latter was more dominant. Salt rejection remained very high at ∼99% for all tested conditions, thus demonstrating the feasibility of mesoporous inorganic TiO2 structures for desalination and brine processing. The TiO2 membranes proved to be stable for long term (>350 h) testing even under thermal cycling conditions. © 2015 Elsevier B.V. All rights reserved.</description>
<date>2015-06</date>
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