Fabrication and Characterization of a UF Ceramic Membrane based on TiO_2 Nanoparticles

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Mirkazemi, Amin | 2016

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 48383 (04)
University: Sharif University of Technology
Department: Physics
Advisor(s): Taghavinia, Nima
Abstract:
UF membranes are widely used in various industries now, a major type of these membranes are ceramic membranes which are resistant to high temperatures and corrosive fluids. In this thesis we developed an anisotropic UF ceramic membrane based on 20nm TiO2 nanoparticles on a prous sustrate. We had two major challenges, the first one was to find a suitable prous substrate and the second one was to find an appropriate coating method. Our main task was to optimise the process conditions to achive a crackless and uniform membrane layer with minimal ups and downs. Lots of coating methods and TiO2 inks have been tried, finally we used a coating method which we called it “Soft Blade Coating”, with this method and its corresponding TiO2 ink we achieved an appropriate and acceptable membrane sample. The next step was to characterize this final membrane samples, first we studied membrane surface morphology with SEM images and then we examined membrane selectivity, permeability and morphplogy.In addition to separation task, TiO2 nanoparticles on membrane can play an important role as an effective photocatalyst surface which destroys bacteria and other microorganisms in UV exposure
Keywords:
Ceramic Membrane ; Ultrafiltration ; Titanium Oxide ; Inorganic Membrane ; Titanium Dioxide Nanoparticles ; Characterization

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