Characteristics of ceramic membranes derived from metal-oxide nanoparticles

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dc.contributor.advisorWiesner, Mark R.en_US
dc.creatorFidalgo, Maria Martaen_US
dc.date.accessioned2009-06-04T08:06:16Zen_US
dc.date.available2009-06-04T08:06:16Zen_US
dc.date.issued2001en_US
dc.description.abstractCarboxylate alumoxanes were cast onto alpha-alumina supports by slip-coating to develop asymmetric ceramic membranes. Carboxylate ferroxanes were also analyzed as possible precursor for ceramic membranes. Different support materials were studied. Membrane layers as thin as 1 or 2 mum were achieved. The effect of sintering conditions was investigated. The molecular weight cut off was evaluated for these membranes and compared to pore size data obtained by nitrogen adsorption in an effort to correlate pore size and actual performance of the membrane. Membranes were sintered at temperatures between 600°C and 1100°C. The pore sizes increased with higher sintering temperature, from 7 nm at 600°C to 10 nm at 1000°C, followed by a sharp increase due to the transformation to alpha alumina at higher firing temperatures. The molecular weight cut off showed no considerable variation up to 1000°C. These results are in good agreement with equations reported by several authors that correlate molecular weight with size.en_US
dc.format.extent113 p.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.callnoTHESIS ENV.SCI. 2001 FIDALGOen_US
dc.identifier.citationFidalgo, Maria Marta. "Characteristics of ceramic membranes derived from metal-oxide nanoparticles." (2001) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/17420">https://hdl.handle.net/1911/17420</a>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/17420en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectEnvironmental engineeringen_US
dc.subjectEngineeringen_US
dc.subjectMaterials scienceen_US
dc.titleCharacteristics of ceramic membranes derived from metal-oxide nanoparticlesen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentEnvironmental Scienceen_US
thesis.degree.disciplineEngineeringen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
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